title

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Gottfried W. Ehrenstein

Gabriela Riedel

Pia Trawiel

Thermal Analysisof Plastics

Forperso

naluseonly.

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Ehrenstein /Riedel /Trawiel

Thermal Analysis ofPlastics

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About theCover illustration:

POM-C

to-urn thin section

Polarized transmitted light with lambda plate

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Gottfried W. EhrensteinGabriela Riedel

Pia Trawiel

Thermal Analysisof PlasticsTheory and Practice

HANSER

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tne Authors:

Prof. Dr.-Ing. Dr. h.c. Gottfried W. Ehrenstein, Dipl.-Ing. (FH) Gabriela Riedel, Pia Trawiel, Lehrstuhl fur

Kunststoffiechnik Universitat Erlangen-Nurnberg, Am Wejchselgarten 9, D-91058 Erlangen-Tennenlohe, Germany,

Tel.: +49 (91 31) 85 - 2 97 00, Fax.: +49 (91 31) 85 - 029709, E-mail: [email protected], Internet:http://www.lkt.uni-erlangen.de

Distributed in the USA and inCanada by

Hanser Gardner Publications, Inc.

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Fax: (513) 527-8801

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Carl Hanser Verlag

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The use of general descriptive names, trademarks, etc., in this publication, even if the former are not especially

identified, is not to be taken as a sign that such names, as understood by the Trade Marks and Merchandise Marks

Act, may accordingly be used freely by anyone.

While the advice and information in this book are believed to be true and accurate at the date of going to press,

neither the authors nor the editors nor the publisher can accept any legal responsibility for any errors or omissions

that may be made. The publisher makes no warranty, express or implied, with respect to the material contained

herein.

Library of Congress Cataloging-in-Publication Data

Ehrenstein, G. W.[Praxis der thermischen Analyse von Kunststoffen. English]

Thermal analysis of plastics / Gottfried W.Ehrenstein, Gabriela Riedel, Pia Trawiel.

p. em.

Includes bibliographical references and index.

ISBN 1-56990-362-X

I.Thermal analysis. I. Riedel, Gabriela. II. Trawiel, Pia. III.Title.

QD79.T38E3713 2004

543' .26--dc22

2004017191

Bibliografische Information Der Deutschen Bibliothek

Die Deutsche Bibliothek verzeichnet diese Publikation in der Deutschen Nationalbibliografie;

detaillierte bibliografische Daten sind im Internet uber <http://dnb.ddb.de> abrutbar.

ISBN 3-446-22673-7

All rights reserved. No part of this book may be reproduced or transmitted in any form or by any means, electronic

or mechanical, including photocopying or by any information storage and retrieval system, without permission in

writing from the publisher.

© Carl Hanser Verlag, Munich 2004

Production Management: Oswald Immel

Typeset by Trawiel/Riedel GbR, Germany

Coverconcept: Marc Muller-Bremer, Rebranding, MOnchen, Germany

Coverdesign: MCP • Susanne Kraus GbR, Holzkirchen, Germany

Printed and bound by Kosel, Krugzell, Germany

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Preface V

Preface

Over the years, we have found thermoanalytical techniques to be powerful, highly versatile

tools for conducting research projects in the fields of thermoplastic, thermoset and elastomer

processing, practical development and testing, tribology and bonding technology, electron-

ics and material composites, materials testing and materials failure testing. By virtue of the

vast number of experiments we conducted over this period and the fact that we employed

instruments from different manufacturers as well as complementary techniques, we have

gained major insights into both the advantages and the daily tribulations associated withthermoanalytical methods. These span all aspects of thermal analysis: the techniques them-

selves, the preparation of samples, performance of experiments and interpretation of results

as well as the practicability of the techniques in real life and the scientific explanations of

the relationships involved.

Such work calls for seamless, across-the-board cooperation between production technicians,

mechanical engineers, materials scientists, chemical engineers, physicists and chemists,

scientists, project engineers and laboratory staff, whether they be specialists or non-

specialists. For these people, thermal analysis is first and foremost a working tool and not an

end in itself. And it is for these people and the many others facing similar problems that we

have written this book – to serve firstly as an aid to practical work, to handling instruments,

preparing samples, estimating settings, interpreting results, assessing accuracy and reprodu-

cibility, warning against over-estimation, and critically assessing the interpretations.The second goal is to acquaint them with the many advantages and vast potential that

thermoanalytical techniques have to offer.

There will undoubtedly be inadvertent omissions in the book – as well as room for

improvement. Your feedback is always welcome. We would like to express our appreciation

to the many friends, colleagues and assistants who offered us helpful comments and en-

couragement, to whom we are indebted for their suggestions and advice and without whom

this book would never have contained the wealth of information that it does. Our sincere

gratitude is extended to Prof. Dr. Tim Osswald, Prof. Dr. Jozef Varga, Prof. Helmut Vogel,

Dr. Eva Bittmann, Prof. Dr. Erich Kramer, Dr. Klaus Könnecke, Dr. Jens Rieger, Dr.

Herbert Stutz, Dr. Ingolf Hennig, and from the Lehrstuhl für Kunststofftechnik, to Dr. Sonja

Pongratz, Dr. Johannes Wolfrum, Prof. Dr. Michael Schemme and Juditha Hudi – all of

whom assisted, advised and positively criticized our work in some form or another. Wewould also like to thank Raymond Brown for the translation and Dr. Duncan M. Price for

the critical review of the work. Last but by no means least, we would like to thank the

“Grand Old Lady of Thermal Analysis”, Prof. Edith Turi, for encouraging us unremittingly

and endorsing our approach to the subject matter.

Gottfried W. Ehrenstein

Gabriela Riedel

Pia Trawiel

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VI

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Table of Contents VII

Table of Contents

Preface ......................................................... ........................................................... .............. V

Table of Contents ................................................................ .............................................. VII

Standards for Thermal Analysis.....................................................................................XIV

Abbreviations Used..........................................................................................................XXI

Abbreviations for Plastics ................................................................... .........................XXVI

1 Differential Scanning Calorimetry (DSC)......................................................... .......... 1

1.1 Principles of DSC ...................................................... ............................................. 1

1.1.1 Introduction.....................................................................................................1

1.1.2 Measuring Principle ............................................................... ......................... 2

1.1.3 Procedure and Influential Factors ........................................................... ........ 6 1.1.4 Evaluation ...................................................... ................................................. 7

1.1.4.1 Glass Transition....... ...................... ...................... ...................... ...................... ........ 7 1.1.4.2 Melting ..................... ...................... ...................... ...................... ...................... ..... 10 1.1.4.3 Crystallization................................. ...................... ...................... ...................... ..... 16 1.1.4.4 Chemical Reaction — Dynamic Process .................... ....................... .................... 20 1.1.4.5 Specific Heat Capacity...................................... ...................... ....................... ........ 21 1.1.4.6 Test Report ..................... ...................... ...................... ...................... ..................... 22

1.1.5 Calibration.....................................................................................................22 1.1.5.1 Temperature Calibration........ ...................... ....................... ...................... ............. 23 1.1.5.2 Energy Calibration (Enthalpy Calibration).................... ....................... ................. 25 1.1.5.3 Heat-Flux Calibration by Means of Known Heat Capacity ..................... .............. 25

1.1.6 Temperature-Modulated DSC (TMDSC)......................................................26 1.1.7 Overview of Practical Applications .............................................................. 30

1.2 Procedure ............................................................ .................................................. 32

1.2.1 In a Nutshell..................................................................................................32

1.2.2 Influential Factors and Possible Errors During Measurement....................... 34 1.2.2.1 Specimen Preparation................... ....................... ....................... ...................... ..... 34 1.2.2.2 Specimen Mass .................... ...................... ...................... ...................... ................ 41

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VIII Table of Contents

1.2.2.3 Pan................... ...................... ...................... ...................... ...................... .............. 44 1.2.2.4 Purge Gas...................... ...................... ..................... ...................... ...................... .. 47 1.2.2.5 Measuring Program .................... ....................... ...................... ....................... ....... 48 1.2.2.6 Evaluation................... ...................... ...................... ...................... ...................... ... 58

1.2.3 Real-Life Examples.......................................................................................63 1.2.3.1 Identification of Plastics ..................... ...................... ...................... ...................... . 63 1.2.3.2 Crystallinity ...................... ...................... ...................... ...................... ................... 66 1.2.3.3 Thermal History.................... ...................... ...................... ...................... ............... 67 1.2.3.4 Water Uptake............ ...................... ...................... ...................... ...................... ..... 75 1.2.3.5 Nucleation................................... ...................... ...................... ...................... ......... 76 1.2.3.6 Aging..................... ...................... ...................... ...................... ...................... ........ 78 1.2.3.7 Crosslinking of Thermoplastics ....................... ...................... ....................... ......... 82 1.2.3.8 Mixtures, Blends, and Contaminants .................... ...................... ....................... .... 84 1.2.3.9 Curing of Thermosets ..................... ...................... ...................... ...................... ..... 92 1.2.3.10 Results of Round-Robin Trials ..................... ...................... ...................... ............. 98 1.2.3.11 Compiling TTT Diagrams ..................... ....................... ...................... ................. 100 1.2.3.12 Examples of Temperature-Modulated DSC (TMDSC).............. ....................... ... 102

1.3 References........................................................... ................................................ 105

2 Oxidative Induction Time/Temperature (OIT)...................................................... 111

2.1 Principles of OIT................................................................................. ................ 111

2.1.1 Introduction.................................................................................................111

2.1.2 Measuring Principle ....................................................... ............................. 112

2.1.3 Procedure and Influential Factors ............................................................... 113

2.1.4 Evaluation ........................................................... ........................................ 114 2.1.4.1 Dynamic Method ..................... ...................... ....................... ...................... ......... 114 2.1.4.2 Static Method........................ ...................... ...................... ...................... ............. 115 2.1.4.3 Test Report .................... ...................... ...................... ...................... .................... 116

2.1.5 Overview of Practical Applications ............................................................ 116

2.2 Procedure ............................................................ ................................................ 118

2.2.1 In a Nutshell......................................................................... ....................... 118

2.2.2 Influential Factors and Possible Errors During Measurement..................... 119 2.2.2.1 Specimen Preparation..................... ...................... ....................... ...................... .. 119 2.2.2.2 Specimen Mass ..................... ...................... ....................... ...................... ............ 122 2.2.2.3 Pans .................... ...................... ...................... ...................... ...................... ......... 123 2.2.2.4 Purge Gas...................... ...................... ..................... ...................... ...................... 123 2.2.2.5 Measuring Program .................... ....................... ...................... ....................... ..... 125 2.2.2.6 Evaluation...................... ...................... ...................... ...................... .................... 128

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Table of Contents IX

2.2.3 Real-Life Examples.....................................................................................131 2.2.3.1 Comparison of “Static” and “Dynamic” Methods ...................... ...................... ... 131 2.2.3.2 Influence of the Processing Parameters ....................... ...................... .................. 132 2.2.3.3 Stabilizer Degradation Through Repeated Processing........................ ................. 133 2.2.3.4 Stabilizer Degradation Due to Effects of Media..................... ....................... ...... 135 2.2.3.5 Results of Round-Robin Trials ...................... ....................... ...................... ......... 135

2.3 References........................................................... ................................................ 136

3 Thermogravimetry (TG) ......................................................... ................................. 139 3.1 Principles of TG..................................................................................................139

3.1.1 Introduction.................................................................................................139



3.1.4 Evaluation ........................................................... ........................................ 141 3.1.4.1 Single-Step Change of Mass........ ...................... ...................... ...................... ...... 141 3.1.4.2 Multistep Change of Mass ..................... ....................... ...................... ................. 143 3.1.4.3 Test Report .................... ...................... ...................... ...................... .................... 145

3.1.5 Calibration....................................................................... ............................ 146 3.1.5.1 Buoyancy Correction...... ....................... ...................... ....................... ................. 146 3.1.5.2 Mass Calibration............... ...................... ...................... ...................... ................. 146 3.1.5.3 Temperature Calibration........ ...................... ....................... ...................... ........... 146


3.2 Procedure ............................................................ ................................................ 150

3.2.1 In a Nutshell......................................................................... ....................... 150

3.2.2 Influential Factors and Possible Errors During Measurement..................... 151 3.2.2.1 Specimen Preparation..................... ...................... ....................... ...................... .. 151 3.2.2.2 Specimen Mass ..................... ...................... ....................... ...................... ............ 153 3.2.2.3 Pan................... ...................... ...................... ...................... ...................... ............ 154 3.2.2.4 Purge Gas...................... ...................... ..................... ...................... ...................... 155 3.2.2.5 Measuring Program .................... ....................... ...................... ....................... ..... 157 3.2.2.6 Evaluation...................... ...................... ...................... ...................... .................... 159

3.2.3 Real-Life Examples.....................................................................................160 3.2.3.1 Carbon Black Content........................... ....................... ...................... .................. 160 3.2.3.2 Calcium Carbonate/Talc Fillers .................... ....................... ...................... .......... 162 3.2.3.3 Stabilizer Degradation .................... ...................... ....................... ....................... . 163 3.2.3.4 Repeated Processing........................ ...................... ....................... ...................... . 164 3.2.3.5 Multistep Decomposition..................... ...................... ...................... .................... 164 3.2.3.6 Media Effects.................... ...................... ...................... ...................... ................. 166

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X Table of Contents

3.2.3.7 Degradation of Polyoxymethylene................................... ....................... ............. 168 3.2.3.8 Results of Round-Robin Trials ...................... ....................... ...................... ......... 168

3.3 References........................................................... ................................................ 170

4 Thermomechanical Analysis (TMA) ................................................................. ...... 172

4.1 Principles of TMA ..................................................................... ......................... 172

4.1.1 Introduction.................................................................................................172


4.1.3 Procedure and Influential Factors ............................................................... 176 4.1.4 Evaluation ........................................................... ........................................ 177

4.1.4.1 Coefficient of Linear Expansion............ ...................... ....................... ................. 177 4.1.4.2 Glass Transition Temperature.......................... ....................... ...................... ....... 178 4.1.4.3 Test Report .................... ...................... ...................... ...................... .................... 180

4.1.5 Calibration....................................................................... ............................ 180 4.1.5.1 Calibrating the Length ....................... ...................... ....................... ..................... 181 4.1.5.2 Calibrating the Temperature..................... ....................... ...................... .............. 181


4.2 Procedure ............................................................ ................................................ 183

4.2.1 In a Nutshell......................................................................... ....................... 183

4.2.2 Influential Factors and Possible Errors During Measurement..................... 184 4.2.2.1 Specimen Preparation..................... ...................... ....................... ...................... .. 184 4.2.2.2 Specimen Geometry.................................... ...................... ....................... ............ 186 4.2.2.3 Probe................... ...................... ...................... ...................... ...................... ......... 187 4.2.2.4 Applied Load .................... ...................... ...................... ...................... ................. 188 4.2.2.5 Measuring Program .................... ....................... ...................... ....................... ..... 192 4.2.2.6 Evaluation...................... ...................... ...................... ...................... .................... 193

4.2.3 Real-Life Examples.....................................................................................194 4.2.3.1 Thermal and Mechanical History...................... ....................... ...................... ...... 194 4.2.3.2 Influence of Conditioning................... ....................... ...................... .................... 198 4.2.3.3 Influence of Aging......... ...................... ...................... ...................... .................... 199 4.2.3.4 Curing of Thermosets, Postcuring ..................... ...................... ...................... ...... 200 4.2.3.5 Influence of Fillers and Reinforcing Materials ....................... ...................... ....... 201 4.2.3.6 Expansion and Shrinkage of Fibers and Film ..................... ....................... .......... 204 4.2.3.7 Investigating Deformation.... ...................... ...................... ...................... ............. 205

4.3 References........................................................... ................................................ 206

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Table of Contents XI

5 pvT (pressure-volume-Temperature) Measurements............................................ 209

5.1 Principles of pvT Measurements......................................................................... 209

5.1.1 Introduction.................................................................................................209



5.1.4 Evaluation ........................................................... ........................................ 214 5.1.4.1 General Parameters Obtained with pvT Diagrams..................... ....................... ... 214

5.1.4.2 Test Report .................... ...................... ...................... ...................... .................... 215 5.1.5 Calibration....................................................................... ............................ 215

5.1.5.1 Volume Calibration ..................... ...................... ....................... ...................... ..... 215 5.1.5.2 Temperature Calibration........ ...................... ....................... ...................... ........... 216


5.2 Procedure ............................................................ ................................................ 217

5.2.1 In a Nutshell......................................................................... ....................... 217

5.2.2 Influential Factors and Possible Errors During Measurement..................... 218 5.2.2.1 Specimen Preparation..................... ...................... ....................... ...................... .. 218 5.2.2.2 Specimen Mass ..................... ...................... ....................... ...................... ............ 219 5.2.2.3 Seals........................ ...................... ...................... ...................... ...................... ..... 219

5.2.2.4 Measuring Program .................... ....................... ...................... ....................... ..... 219 5.2.2.5 Evaluation...................... ...................... ...................... ...................... .................... 222 5.2.2.6 Comparison with TMA....................... ...................... ...................... ..................... 222

5.2.3 Real-Life Examples.....................................................................................223 5.2.3.1 Shrinkage During Cooling of Polymers........ ....................... ...................... .......... 223 5.2.3.2 Shrinkage During Curing of UP Resin............................ ....................... .............. 225 5.2.3.3 Influence of Fillers on Shrinkage...................... ....................... ....................... ..... 226 5.2.3.4 Change in State During Injection Molding..................... ....................... .............. 229 5.2.3.5 Temperature Increase During Adiabatic Melt Compression................. ............... 230 5.2.3.6 Temperature Increase During Curing of UP Resin ..................... ....................... .. 232

5.3 References........................................................... ................................................ 233

6 Dynamic Mechanical Analysis (DMA)............................................................ ........ 236

6.1 Principles of DMA..............................................................................................236

6.1.1 Introduction.................................................................................................236

6.1.2 Measuring Principle ....................................................... ............................. 240 6.1.2.1 Free Vibration.................. ...................... ...................... ...................... .................. 240 6.1.2.2 Forced Vibration (Non-resonant)............... ....................... ...................... ............. 240

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XII Table of Contents


6.1.4 Evaluation ........................................................... ........................................ 243 6.1.4.1 Methods of Evaluating the Modulus Step............ ....................... ....................... .. 244 6.1.4.2 Evaluation of Peaks .................... ...................... ...................... ...................... ....... 247 6.1.4.3 Test Report .................... ...................... ...................... ...................... .................... 249

6.1.5 Calibration....................................................................... ............................ 250 6.1.5.1 Temperature Calibration........ ...................... ....................... ...................... ........... 250 6.1.5.2 Modulus Calibration....................... ....................... ...................... ....................... . 251 6.1.5.3 Apparatus Calibration......... ...................... ....................... ...................... .............. 251

6.1.6 Overview of Practical Applications ............................................................ 251 6.2 Procedure ............................................................ ................................................ 253

6.2.1 In a Nutshell......................................................................... ....................... 253

6.2.2 Influential Factors and Possible Errors During Measurement..................... 255 6.2.2.1 Mode of Deformation .................... ....................... ...................... ....................... .. 255 6.2.2.2 Load Amplitude/Deformation................................ ...................... ...................... .. 256 6.2.2.3 Test Arrangement/Specimen Geometry............... ....................... ........................ . 257 6.2.2.4 Specimen Preparation/Clamping...................................... ...................... .............. 264 6.2.2.5 Purge Gas...................... ...................... ..................... ...................... ...................... 267 6.2.2.6 Measuring Program .................... ....................... ...................... ....................... ..... 267 6.2.2.7 Tg -Evaluation...................... ...................... ...................... ...................... .............. 271

6.2.3 Real-Life Examples.....................................................................................276 6.2.3.1 DMA Curves for Various Polymers.............................. ...................... ................. 276 6.2.3.2 Measurements on Polyamide......................... ...................... ....................... ......... 278 6.2.3.3 Conditioning – Water Content.... ....................... ...................... ....................... ..... 280 6.2.3.4 Blends....... ..................... ...................... ...................... ...................... .................... 282 6.2.3.5 Annealing ...................... ...................... ...................... ...................... .................... 286 6.2.3.6 Curing of Reaction Resins ...................... ....................... ...................... ................ 287 6.2.3.7 Aging..................... ...................... ...................... ...................... ...................... ...... 289 6.2.3.8 Influence of Plasticizers.................. ...................... ....................... ...................... .. 291 6.2.3.9 Temperature Distribution in Fiber-Reinforced Polymers..................................... 291

6.3 References........................................................... ................................................ 294

7 Micro-Thermal Analysis................................................................................ ........... 300

7.1 Principles of micro-TA............................................................. .......................... 300

7.1.1 Introduction.................................................................................................300


7.1.3 Procedure and Influencing Factors.............................................................. 302

7.1.4 Evaluation ........................................................... ........................................ 303

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Table of Contents XIII

7.1.5 Calibration....................................................................... ............................ 304


7.2 Procedure ............................................................ ................................................ 306

7.2.1 In a Nutshell......................................................................... ....................... 306

7.2.2 Influential Factors and Possible Errors During Measurement..................... 307 7.2.2.1 Specimen Preparation..................... ...................... ....................... ...................... .. 307 7.2.2.2 Generating the Surface Image........................ ...................... ....................... ......... 308 7.2.2.3 Choice of Measuring Points............... ....................... ...................... ..................... 308 7.2.2.4 Load............ ...................... ...................... ...................... ...................... ................. 309 7.2.2.5 Measuring Program .................... ....................... ...................... ....................... ..... 310 7.2.2.6 Evaluation...................... ...................... ...................... ...................... .................... 312

7.2.3 Real-Life Examples.....................................................................................312 7.2.3.1 Identification of Polymers ...................... ....................... ...................... ................ 312 7.2.3.2 Boundary Layer of a PP Sample.................... ....................... ...................... ......... 313 7.2.3.3 Multilayer Pipe .................... ...................... ...................... ...................... .............. 315 7.2.3.4 Gating Region in a Two-Component Sample ..................... ....................... .......... 315 7.2.3.5 PA 6 in a Metal Composite................. ...................... ...................... ..................... 317 7.2.3.6 Detection of Surface Aging ....................... ...................... ....................... ............. 318

7.3 References........................................................... ................................................ 319

8 Brief Characterization of Key Polymers........................................................... ...... 320

9 Subject Index............. ................................................................ ................................ 359

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XIV Standards for Thermal Analysis

Standards for Thermal Analysis

Differential Scanning Calorimerty (DSC)

ASTM D 3417 (1999)

Standard Test Method for Enthalpies of Fusion and Crastallization of Polymers by

Differential Scanning Calorimetry (DSC)

ASTM D 3418 (1999)

Standard Test Method for Transition Temperatures by Differential Scanning Calorimetry

ASTM D 4591 (2001)

Standard Test Method of Determining Temperatures and Heats of Transitions of

Fluoropolymers by Differential Scanning Calorimetry

ASTM E 793 (2001)

Standard Test Method for Enthalpies of Fusion and Crystallization by Differential

Scanning Calorimetry

ASTM E 794 (2001)

Standard Test Method for Melting Temperatures and Crystallization Temperatures by

Thermal Analysis

ASTM E 967 (2003)

Standard Practice for Temperature Calibration of Differential Scanning Calorimeters andDifferential Thermal Analyzers

ASTM E 968 (2002)

Standard Practice for Heat Flow Calibration of Differential Scanning Calorimeters

ASTM E 1269 (2001)

Standard Test Method of Determining Specific Heat Capacity by Differential Scanning

Calorimetry

ASTM E 1356 (2003)

Standard Test Method for Assignment of the Glass Transition Temperatures by

Differential Scanning Calorimetry

ASTM 2069 (2000)

Standard Test Method for Temperature Calibration on Cooling of Differential Scanning

Calorimeters

ASTM E 2070 (2000)

Standard Test Method for Kinetic Parameters by Differential Scanning Calorimetry

Using Isothermal Methods

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Standards for Thermal Analysis XV

ISO 11357-1 (1997)

Plastics – Differential Scanning Calorimetry (DSC) – Part 1: General Principles

ISO 11357-2 (1999)

Plastics – Differential Scanning Calorimetry (DSC) – Part 2: Determination of Glass

Transition Temperature

ISO 11357-3 (1999)

Plastics – Differential Scanning Calorimetry (DSC) – Part 3: Determination of

Temperature and Enthalpy of Melting and Crystallization / Note: To be amended by

ISO 11357-3 DAM 1 (2004)

ISO/DIS 11357-4 (2003)

Plastics – Differential Scanning Calorimetry (DSC) – Part 4: Determination of Specific

Heat Capacity

ISO 11357-5 (1999)


Characteristic Reaction Curve Temperatures and Times, Enthalpie of Reaction and

Degree of Conversion / Note: EQV DIN 53765 (1994)

ISO 11357-7 (2002)


Crystallization Kinetics

ISO/DIS 11357-8 (2001)Plastics – Differential Scanning Calorimetry (DSC) – Part 8: Determination of

Amount of Absorbed Water

ISO 11409 (1993)

Plastics – Phenolic Resins – Determination of Heats and Temperatures of Reactions by

Differential Scanning Calorimetry

prEN 6041 (1995)

Aerospace Series – Non-metallic Materials – Test Method; Analysis of Non-metallic

(uncured) by Differential Scanning Calorimetry (DSC)

prEN 6064 (1995)

Aerospace Series – Non-metallic Materials – Analysis of Non-metallic Materials (cured)

for the Determination of the Extend of Cure by Differential Scanning Calorimetry (DSC)DIN 51 005 (1999)

Thermal Analysis (TA) – Terms / Note: Intended as Replacement for DIN 51 005 (1993)

DIN 51 007 (1994)

Thermal Analysis – Differential Thermal Analysis; Principles

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XVI Standards for Thermal Analysis

DIN 53 765 (1994)

Testing of Plastics an Elastomers – Thermal Analysis; DSC-Method / Note: EQV ISO

11357-5 (1999)

DIN 65 467 (1999)

Aerospace – Testing of Thermosetting Resin Systems with and without Reinforcement –

DSC-Method

Oxidative Induction Time/Temperature (OIT)

ASTM D 3895 (2003)Standard Test Method for Oxidative Induction Time of Polyolefins by Differential

Scanning Calorimetry

ASTM D 5885 (1997)

Standard Test Method for Oxidative Induction Time of Polyolefin Geosynthetics by

High-Pressure Differential Scanning Calorimetry

ASTM E 2009 (2002)

Standard Test Method for Temperature Calibration on Cooling of Differential Scanning

Calorimeters

ISO 11357-6 (2002)

Plastics – Differential Scanning Calorimetry (DSC) – Part 6: Determination of Oxidation

Induction Time

DS 2131.2 (1982)

Dansk Standard, Pipes, Fittings and Joints of Polyethylene

Type PEM and PEH for Buried Gas Pipelines

Thermogravimetry (TG)

ASTM D 6370 (1999)

Standard Test Method for Rubber-Compositional Analysis by Thermogravimetry (TGA) /

Note: Reapproved 2003

ASTM E 1131 (2003)

Standard Test Method for Compositional Analysis by Thermogravimetry

ASTM E 1582 (2000)

Standard Test Method for Rubber-Compositional Analysis by Thermogravimetry (TGA) /

Note: Reapproved 2003

ASTM E 1641 (1999)

Standard Test Mehod for Decomposition Kinetics by Thermogravimetry

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Standards for Thermal Analysis XVII

ASTM E 1868 (2002)

Standard Test Method for Loss-On-Drying by Thermogravimetry

ASTM E 2008 (1999)

Standard Test Method for Volatility Rate by Thermogravimetry

ISO 9924-1 (2000)

Rubber and Rubber Products – Determination of the Composition of Vulcanizates and

Uncured Compounds by Thermogravimetry – Part 1: Butadiene, Ethylene-Propylene

Copolymer and Terpolymer, Isobutene-Isoprene, Isoprene and Styrene-Butadiene

Rubbers

ISO 9924-2 (2000)

Rubber and Rubber Products – Determination of the Composition of Vulcanizates and

Uncured Compounds by Thermogravimetry – Part 2: Acrylonitrile-Butadiene and

Halobutyl Rubbers

ISO 11358 (1997)

Plastics – Thermogravimetry (TG) of Polymers – Gerneral Principles

ISO/DIS 21870 (2003)

Rubber Compounding Ingredients – Carbon Black – Determination of High-Temperature

Loss on Heating by Thermogravimetry

prEN 1878 (1995)

Products and Systems for the Protection and Repair of Concrete Structures – TestMethods – Reactive Functions Related to Epoxy Resins – Thermogravimetry of Polymers

– Temperature Scanning Method

DIN 51 006 (2000)

Thermal Analysis (TA), Thermogravimetry (TG) – Principles

Thermomechanical Analysis (TMA)

ASTM E 831 (2003)

Standard Test Method for Linear Thermal Expansion of Solid Materials by

Thermomechanical Analysis

ASTM E 1363 (2003)Standard Test Method for Temperature Calibration of Thermomechanical Anaylzers

ASTM E 1545 (2000)

Standard Test Method for Assignment of the Glass Transition Temperature by

Thermomechanical Analysis

ASTM E 1824 (2002)

Standard Test Method for Assignment of a Glass Transition Temperature Using

Thermomechanical Analysis Under Tension

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XVIII Standards for Thermal Analysis

ASTM E 2113 (2002)

Standard Test Method for Length Change Calibration of Thermomechanical Analyzers

ISO 11359-1 (1999)

Plastics – Thermomechanical Analysis (TMA) – Part 1: General Principles

ISO 11359-2 (1999)

Plastics – Thermomechanical Analysis (TMA) – Part 2: Determination of Coefficient of

Linear Thermal Expansion and Glass Transition Temperature

ISO 11359-3 (2002)

Plastics – Thermomechanical Analysis (TMA) – Part 3: Determination of Penetration

Temperature

DIN 53 752 (1980)

Testing of Plastics – Determination of the Coefficient of Linear Thermal Expansion

Dynamic Mechanical Analysis (DMA)

ASTM D 4065 (2001)

Standard Practice for Plastics – Dynamic Mechanical Properties – Determination and

Report of Procedures

ASTM D 4092 (2001)

Standard Terminology – Plastics – Dynamic Mechanical PropertiesASTM D 4440 (2001)

Standard Test Method for Plastics – Dynamic Mechanical Properties – Melt Rheology

ASTM D 4473 (2003)

Standard Test Method for Plastics – Dynamic Mechanical Properties – Cure Behavior

ASTM D 5023 (2001)

Standard Test Method for Measuring the Dynamic Mechanical Properties – In Flexure

(Three-Point-Bending)

ASTM D 5024 (2001)

Standard Test Method for Plastics – Dynamic Mechanical Properties – In Compression

ASTM D 5026 (2001)Standard Test Method for Plastics – Dynamic Mechanical Properties – In Tension

ASTM D 5279 (2001)

Standard Test Method for Plastics: Dynamic Mechanical Properties: In Torsion

ASTM D 5418 (2001)

Standard Test Method for Plastics – Dynamic Mechanical Properties – In Flexure

(Dual Cantilever Beam)

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Standards for Thermal Analysis XIX

ASTM D 6048 (2002)

Standard Practice for Stress Relaxation Testing of Raw Rubber, Unvulcanized Rubber

Compounds, and Thermoplastic Elastomers

ASTM E 1640 (1999)

Standard Test Method for Assignment of the Glass Transition Temperature by Dynamic

Mechanical Analysis

ASTM E 1867 (2001)

Standard Test Method for Temperature Calibration of Dynamic Mechanical Analyzers

ASTM E 2254 (2003)

Standard Test Method for Storage Modulus Calibration of Dynamic Mechanical

Analyzers

ISO 6721-1 (2001)

Plastics – Determination of Dynamic Mechanical Properties – Part 1: General Principles

ISO 6721-2 (1995)

Plastics – Determination of Dynamic Mechanical Properties – Part 2: Torsion-Pendulum

Method / Note: Technical Corrigendum 1

ISO 6721-3 (1995)

Plastics – Determination of Dynamic Mechanical Properties – Part 3: Flexural Vibration –

Resonance-Curve Method / Note: Technical Corrigendum 1

ISO 6721-4 (1994)Plastics – Determination of Dynamic Mechanical Properties – Part 4: Tensile Vibration –

Non-Resonance Method

ISO 6721-5 (2003) DAM 1

Plastics – Determination of Dynamic Mechanical Properties – Part 5: Flexural Vibration;

Non-Resonance Method; Amendment 1 /

Note: Intended as an Amendment to ISO 6721-5 (1996)

ISO 6721-6 (2003) DAM 1

Plastics – Determination of Dynamic Mechanical Properties – Part 6: Shear Vibration;



ISO 6721-7 (2003) DAM 1Plastics – Determination of Dynamic Mechanical Properties – Part 7: Torsional Vibration;



ISO 6721-8 (1997)

Plastics – Determination of Dynamic Mechanical Properties – Part 8: Longitudinal and

Shear Vibration – Wave-Propagation Method

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XX Standards for Thermal Analysis

ISO 6721-9 (1997)

Plastics – Determination of Dynamic Mechanical Properties – Part 9: Tensile Vibration;

Sonic-Pulse Propagation Method

ISO 6721-10 (1999)

Plastics – Determination of Dynamic Mechanical Properties – Part 10: Complex Shear

Viscosity Using a Parallel-Plate Oscillatory Rheometer

prEN 6032 (1996)

Aerospance series – Fibre Reinforcrd Plastics – Test Method; Determination of the Glass

Transition Temperatures

DIN 29 971 (1991)

Aerospace – Unidirectional Carbon Fibre-Epoxy Sheet and Tape Prepreg – Technical

Specification

DIN 53 545 (1990)

Determination of Low Temperature Behaviour of Elastomers – Principles and Test

Methods

DIN 65 583 (1999)

Aerospace – Fibre Reinforced Materials – Determination of Glass Transition of Fibre

Composites Under Dynamic Load

Other Standards

ISO 527 (1994)

Plastics – Determination of Tensile Properties – Part 1-5

ISO 179 (1993)

Plastics – Determination of Charpy Impact Strength

ISO 604 (1993)

Plastics – Determination of Compressive Properties

DIN 50 035 (1989)

Terms and Definitions used on Aging of Materials

ISO 1172 (1996)Textile-Glass-Reinforced Plastics – Prepregs, Moulding Compounds and Laminates –

Determination of the Textile-Glass and Mineral-Filler Content – Calcination Methods

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Abbreviations Used XXI

Abbreviations Used

DSC Differential Scanning Calorimetry

DSC Differential scanning calorimetry

Heat flux DSC

Power compensation DSC

TMDSC Temperature-modulated DSC

cDSC [%] Degree of curing

c p [J/(g °C)], [J/(g K)] Specific heat capacity

H [J], [J/g] Enthalpy

∆H [J], [J/g] Enthalpy change

∆Hm,f, S [J], [J/g] Melting enthalpy, heat of fusion ∆Hc,K [J], [J/g] Crystallization enthalpy, heat of crystallization ∆Hr [J], [J/g] Reaction enthalpy, heat of reaction

∆Hm,f,S0 [J], [J/g] Melting enthalpy (heat of fusion) of a 100%

crystalline material wc, α [%] Degree of crystallization, crystallinity m [g] Mass

ρ [g/cm³] Density P [W] Power

∆P [W] Power difference Q& [W], [W/g] Heat flux

∆Q& [W], [W/g] Heat flux difference

t [s] Time

T [°C], [K] Temperature

∆T [°C], [K] Temperature difference

vh [°C/min], [K/min] Heating rate (βh)

vk [°C/min], [K/min] Cooling rate (βk )

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XXII Abbreviations Used

Glass Transition Temperatures

Tg [°C], [K] Glass transition temperature

Tmg [°C], [K] Midpoint temperature

Tig [°C], [K] Starting temperature

Teig [°C], [K] Extrapolated starting temperature

Tfg [°C], [K] End temperature

Tefg [°C], [K] Extrapolated end temperature

Melting Temperatures

Tm [°C], [K] Melting peak temperature

0mT [°C], [K] Equilibrium melting temperature

Tim [°C], [K] Starting temperature

Teim [°C], [K] Extrapolated starting temperature

T pm [°C], [K] Peak temperature

Tefm [°C], [K] Extrapolated end temperature

Tfm [°C], [K] End temperature

(Crystallization and reaction temperatures are similar, but use subscripts c and r)

Temperature-Modulated DSC

A(t) [°C/min], [K/min] Heating rate amplitude (time-dependent)

Amod [°C/min], [K/min] Modulation amplitude

Amod.∆ H [W/g] Amplitude of the modulated heat flux

signal Amod.v [°C/min], [K/min] Amplitude of the modulated heating rate

P [s] Duration of period

OIT Oxidative Induction Time/Temperature

Stat. OIT Determination of the OIT time at

constant temperature

Dyn. OIT Determination of the OIT temperature on

programmed temperature increase

tU [min] Switching time from nitrogen to oxygen

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Abbreviations Used XXIII

teio [min] Extrapolated starting time of oxidation

txst [min] Time after x [W/g] of exothermic shift from the

baseline

Teio [min] Extrapolated starting time of oxidation

dyxT [min] Temperature after x [W/g] of exothermic shift

from the baseline

TG Thermogravimetry

DTG curve Differential TG curve dm/dt

A(1, 2...) Starting point

TA(1, 2...) [°C], [K] Temperature at starting point

tA(1, 2...) [min] Time at starting point

C(1, 2...) Midpoint

TC(1, 2...) [°C], [K] Temperature at mid-point

tC(1, 2...) [min] Time at midpoint

B(1, 2...) End point

T(B1, 2...) [°C], [K] Temperature at end point

t(B1, 2...) [min] Time at end point

Subscrupt1, 2... 1st

and 2nd

steps

ms [mg], [%] Specimen mass

mi [mg], [%] Midpoint between two decompositions

mf [mg], [%] Mass after end temperature attained

mB1 [mg], [%] Mass at end point of the first loss of mass

mA2 [mg], [%] Mass at starting point of second loss of mass

mmax [mg], [%] Maximum mass occurring

∆m [mg], [%] Change of mass ML(1, 2...) [mg], [%] Loss of mass

MG [mg], [%] Gain in mass

T p1 [°C], [K] 1st peak maximum on the DTG curve

T p2 [°C], [K] 2nd

peak maximum on the DTG curve

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XXIV Abbreviations Used

TMA Thermomechanical Analysis

l [mm] Length

l0 [mm] Starting length/reference length

∆l [µm], [mm] Change of length ∆l/l0 [µm/m] Change of length expressed in terms of the

starting length

∆lth [µm], [mm] Temperature-dependent change of length

T0 [°C], [K] Reference temperature

α(T) [K -1

], [10-6

K -1

], Differential coefficient of linear thermal

[µm/(m K)] expansion

[10-6°C-1], [µm/(m °C)]

α (∆T) [K -1], [10-6K -1], Mean coefficient of linear thermal

[µm/(m K)] expansion [10

-6°C

-1], [µm/(m °C)] between two temperatures

Tgα [°C], [K] Glass transition temperature from the α−curve

TP [°C, K] Penetration Temperature F Calibration factor from αExperiment

and αLiterature

DMA Dynamic Mechanical Analysis

E [MPa], [N/mm2] Elasticity modulus

G [MPa], [N/mm2] Shear modulus

K [MPa], [N/mm2] Bulk Compression modulus

L [MPa], [N/mm2] Uniaxial-strain modulus

E* / G* [MPa], [N/mm2] Complex E-/G-modulus

E´ / G´ [MPa], [N/mm2] Storage modulus

E´´ / G´´ [MPa], [N/mm2] Loss modulus

δ [rad], [°] Phase angle

tan δ Loss factor

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Abbreviations Used XXV

f [Hz], [s-1

] Frequency

ω [Hz], [s-1] Angular frequency σ , σA [MPa], [N/mm

2] Stress, stress amplitude

ε, εA [%] Deformation, deformation amplitude

F [N] Force

M [Nm] Torque

τ [MPa], [N/mm2] Shear stress

γ [-] Shear k Geometry factor

Tg [°C], [K] Glass transition temperature

Teig [°C], [K] Extrapolated starting temperature

Tmg [°C], [K] Midpoint temperature

Tfig [°C], [K] Extrapolated end temperature

Tg2%,TGA [°C], [K] Start of glass transition temperature by the 2 %

method

Tg0,TW [°C], [K] Start of glass transition temperature by the tan-gents method

Tg(E´´max)

Tg(G´´max) [°C], [K] Peak maximum temperature of the loss modulus

Tg(tan δmax) [°C], [K] Peak maximum temperature of the loss factor

µTA Micro-Thermal Analysis

µTATM Micro-Thermal Analysis

V [V] Voltage (Z Piezo element)

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XXVI Abbreviations for Plastics

Abbreviations for Plastics

ABS acrylonitrile-butadiene-styrene copolymer

AN acrylonitrile

ASA acrylonitrile-styrene-acrylate copolymer

B butadiene

BR butadiene rubber

CA cellulose acetate

CAB cellulose acetate butyrate

COC cycloolefin copolymer

EP epoxy resin

EPDM ethylene-propylene-diene rubber

EPS expanded polystyrene

EVAC ethylene-vinyl acetate plastic

LCP liquid crystalline polymer

MF melamine-formaldehyde

mPE metallocene catalyzed polyethylene

NR natural rubber

PA polyamide

PA 46 polyamide 46

PA 6 polyamide 6

PA 610 polyamide 610

PA 66 polyamide 66

PA 6-GF glass-fiber reinforced polyamide 6

PA 66/ 6 polyamide 66/polyamide 6 copolymer

PA 6-3-T amorphous polyamide

PAI polyamide-imide

PAN polyacrylonitrile

PAR polyacrylate

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Abbreviations for Plastics XXVII

PB polybutene

PBI polybenzimidazole

PBT polybutylene terephthalate

PBT/PC polybutylene terephthalate/polycarbonate blend

PBT-GF glass-fiber-reinforced polybutylene terephthalate

PC polycarbonate

PC+ABS polycarbonate blend/acrylonitrile-butadiene-styrene copolymer

PE polyethylene

PE-LD polyethylene, low density

PE-LLD polyethylene, linear low density

PE-HD polyethylene, high density

PE-UHMW polyethylene, ultrahigh molecular weight

PEEK polyetherether ketone

PEI polyetherimide

PEK polyetherketone

PES polyethersulfone

PET polyethylene terephthalate

PF phenolic resin

PI polyimide

PIB polyisobutylene

PMMA polymethylmethacrylate

POM polyoxymethylene

PP polypropylene

PPE polyphenyleneether modifiedPP-GF glass-fiber-reinforced polypropylene

PPO/PS polyphenylene oxide/polystyrene blend

PPS polyphenylene sulfide

PPSU polyphenylene sulfone

PS polystyrene

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XXVIII Abbreviations for Plastics

PS-HI (HIPS) polystyrene high-impact

PS-S polystyrene syndiotactic

PS-I styrene-butadiene copolymer

PSU polysulfone

PTFE polytetrafluoroethylene

PUR polyurethane

PVC polyvinyl chloride

E-PVC emulsion polyvinyl chloride

S-PVC suspension polyvinyl chloride

PVAC polyvinyl acetate

PVDF polyvinylidene fluoride

S styrene

SAN styrene-acrylonitrile copolymer

SB styrene-butadiene copolymer

SEBS styrene-ethylene/butylene-styrene block copolymer

SI silicone

TPE thermoplastic elastomer

TPO olefinic thermoplastic elastomer

TPU thermoplastic polyurethane elastomer

UF urea-formaldehyde polymer

UP unsaturated polyester

VE vinyl ester resin

Abbreviations for Plasticizers

DIDA diisodecyl adipate

DIDP diisodecyl phthalate

DOP dioctyl phthalate

DOS dioctyl sebacate

TCP tricresyl phosphate

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Abbreviations for Plastics XXIX

Chemical Structures of Low Molecular Weight Materials

Ar argon

CaCO3 calcium carbonate

CCl4 carbon tetrachloride

CH4 methane

CO2 carbon dioxide

H2O water

H2SO4 sulfuric acid

HCl hydrochloric acid

HCN hydrocyanic acid

HNO3 nitric acid

KMnO4 potassium permanganate

N2 nitrogen

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