Micromeritics to Showcase New Instruments at PITTCON® 2007 Visit us at booths 2328 and 2428 ....................................1

Micromeritics Proudly Announces Its First Instrumentation Grant Award Winner ............................................ 3

Pore Structure Characterization of Barrier Coatings for Paper and Paperboard............................................ 4

The Micromeritics Medal for Best Poster presented at the Annual Meeting of CATSA ............................................ 7

What’s New at Micromeritics Analytical Services ............................................ 8

Also...

Training Courses ............. 9

Events .............................. 9

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M i c r o M e r i t i c s i n s t r u M e n t c o r p o r a t i o n Volume 18 No. 1

The Science and Technology of Small Particles™

www.micromeritics.com

In this Issue

continued on page 2

Micromeritics to Showcase New Instruments at the 2007 Pittsburgh ConferenceVisit us at Pittcon 2007 and explore the latest develop-

ments in laboratory science. Pittcon (Sunday, February 25 through Thursday, March 1, 2007, Chicago IL) is one of the world’s premier annual conferences devoted to labora-tory science and instrumentation. It’s a great opportunity to get a hands-on look at “latest and greatest,” and to in-teract face-to-face with our technical, sales, and customer support associates.

Micromeritics, located in booths 2328 and 2428 at Chica-go’s McCormick Place convention facility, will showcase several new instruments at this year’s exhibition, includ-ing the recently released AccuPyc II 1340 Gas Displace-ment Pycnometer; the DVVA 4000 Dynamic Void Volume Analyzer; and Elzone II 5390 Particle Size Analyzer.

The AccuPyc II 1340 Series Pycnometers are fast, fully automatic analyzers that provide high-speed, high-precision volume mea-surements and density calculations on a wide variety of powders, solids, and slurries having volumes from 0.01 to 350 cm3. Most sample analyses are completed in less than three minutes with excellent accuracy. After analyses are started with a few keystrokes, data are collected, calculations are performed, and results displayed without further operator intervention.

This versatile instrument can be operated with a keypad or the optional easy-to-use Windows® interface that pro-vides exceptional reporting and archiving capability. Both versions include direct sample mass input from an analyti-cal balance and cycle-based displacement volume report-ing. The powerful Windows interface provides features such as time-based pressure equilibration reporting and additional calculations such as percent solids content and total pore volume.

AccuPyc II 1340

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Pittcon continued

The DVVA 4000 Dynamic Void Volume Analyzer is a state-of-the-art dynamic analyzer capable of measur-ing the compressed void volume and density of carbon black and other materials with precision and accuracy. This unique instrument can potentially replace the cur-rent oil absorption test used by the carbon industry as a predictor of optimal polymer/carbon black ratios in elasto-mer-reinforced materials.

The DVVA 4000 is fully automated with an easy-to-use Windows XP interface. It requires no manual prepara-tion and is self-cleaning. A test for COAN is completed in five minutes without the use of DBP (Dibutyl phthal-ate). The test is believed to meet all requirements of ASTM D7854-16 test method.

The Elzone II 5390 Par-ticle Size Analyzer utilizes the electrical sensing zone method to size samples. Results do not depend upon optical properties, densities, and particle shapes. The Elzone quickly and accu-rately determines the size, number, concentration, and mass of a wide variety of organic and inorganic mate-rials. Easy-to-use automated features include: start-up, run, and shut-down rou-tines; blockage detection and clearing; flushing/rinsing; and calibration. The Elzone determines particle size in a range suitable for a wide va-riety of industrial, biological, and geological specimens. A high level of accuracy, reso-lution, speed, ease-of-use, and a compact size make the Elzone equally suitable for industry, quality control, and research and development laboratories.

Visit us at booths 2328 and 2428 for more infor-mation about these and other products, or visit www.micromeritics.com.

DVVA 4000 Dynamic Void Volume Analyzer

Exceptional throughput can be accomplished with the AccuPyc II 1340 Pycnom-eter. The integrated analysis module can control up to five additional external analysis modules. Each module can have a different size sample chamber (1 cm3, 10 cm3, 100 cm3 or 350 cm3) providing even more versatility.

A multivolume option al-lows analysis of a variety of sample sizes in a single analysis. A temperature-con-trol version of the analysis module performs analyses at user-selectable tem-peratures. The AccuPyc can measure open- and closed-cell foam materials in accor-dance with ASTM method D 6226 with optional FoamPyc software. A glove box model is also available for analyses in applications where the control module and analysis module must be in separate environments.

High throughput, reliablil-ity, versatility, and high quality data describe the new AccuPyc II 1340.

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Micromeritics recently launched an Instrument Grant Program intended to provide particle charac-terization instruments to non-profit universities and research organizations for the purpose of fostering and supporting meritori-ous research projects. Many deserving applications were received.

After careful consideration by a special Grant Selection Committee set up by the president of the company, the initial Micromeritics grant award winner has been selected. An AutoChem II 2920 Catalyst Charac-terization System has been awarded to the Berkeley Ca-talysis Center in the College of Chemistry at the Univer-sity of California, Berkeley.

Alexander Katz, Associate Professor of Chemical Engi-neering and Principal Inves-tigator states, “The Auto-Chem II 2920 Chemisorption analyzer with related com-ponents will be an integral and critical piece of charac-terization equipment within the UC Berkeley Catalysis Center. This instrument will be used to determine the concentration and acid/base characteristics of catalytic active sites on solids in a fashion that cannot be ac-complished by other tech-niques. In particular, this will be used to investigate the chemisorption of H2, CO, CO2, and N2O, as well as reactive chemisorption using hydrogen and alkanes as reductants.”

According to Preston Hendrix, Micromeritics’ President, “This program is designed to promote and advance the acquisition and use of particle charac-terization instrumentation not generally available to non-profit universities and institutions through other means. We are very proud and excited to present this first award in an ongoing grant program to support important research.”

One instrument/integrated system will be awarded per calendar quarter. Applica-tions may be submitted at any time in accordance with the application instructions and will remain active for a period of one year from the date of submission. For a de-tailed grant description, ap-plication requirements, and application visit our website www.micromeritics.com.

AutoChem II 2920 Chemisorption Analyzer

L to R: Greg Hendrix, Technical Marketing Manager, Micromeritcs; Professor Alexis Bell; Dr. Alexander Katz, Assistant Professor; Professor Enrique Inglesia, Director Berkeley Catalysis Center; Preston Hendrix, President, Micromeritics

Micromeritics Proudly Announces Its First Instrumentation Grant Award Winner

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Western Michigan University has ac-

tive research character-izing coatings for paper and paperboard which provide barriers for gases and liquids in addition to printable surfaces. Bar-rier-coated packaging is an extremely large and important area of interest to industry(1-4), govern-ment(5,6), and the con-sumer(1,2). It is expected to grow rapidly as indus-try expands its market offerings of ethnic and specialty foods, nutra-ceuticals and functional foods, extended shelf life products(7-9), and conve-nience foods and prod-ucts. Consumers are de-manding longer shelf life, safe(5), and added value packaged products(10). To package these products, there is a need for better barrier systems due to the conversion of many product applications from rigid container to flexible container systems.

Barrier packaging is used in multi-layer food pack-aging (a “juice box” is one example), microwavable popcorn bags (grease proof paper used for pack-aging popcorn is one ex-ample), in “quick service” wrapping paper (a fast-food hamburger wrap-per is one example), and

numerous other applica-tions where a product must be protected from the ambient environment, or vice versa(1-4). Barrier packaging materials and coatings include not only the obvious materials and coatings necessary for barrier properties, but also those needed for the printing and converting.

Our research on barrier coatings has been facili-tated by our extensive measurement capability for coated and printed paper. We can determine flow (fluid permeability) characteristics(11), mois-ture vapor transmis-sion(12), macro and micro roughness(13,14), and pore size and surface area(15,16) associated with barrier coatings. The latter capa-bility regarding pore prop-erties is facilitated using Micromeritics’ TriStar gas adsorption and AutoPore IV instruments.

Recently, we compared the use of impregnation(15) to apply a barrier coating containing nanosized clay particles(17) to application with a conventional size press(18). Impregnation technology is currently being used by flooring, molding compound, im-pregnated textiles, and decorative film manufac-

turers. An impregnator, in essence, is a shoe press with a pressurized coat-ing delivery system. To impregnate the sheet, the coating is put under pres-sure, 10-100 psi, and then forced into the sheet as it passes through the shoe (nip). Controlled penetra-tion depths of 20-80% are typical and have found commercial benefits to corrugated board manu-facturers seeking strength and stiffness improve-ments while leaving one side available to bond to the medium.

The essential raw mate-rial of nano-clay is mont-morillonite, which is a 2:1 layer smectite clay min-eral with a platey struc-ture. Individual platelet thicknesses are just one nanometer, but surface dimensions are generally 300 to more than 600 nm, resulting in unusually high aspect ratios. The as-pect ratio is defined as the particle’s length-to-thick-ness ratio. Most clays used in paper coatings are reported as having aspect ratios ranging from 10-25. Nano-clays have aspect ratios ranging from 150-400.

Four different coatings were prepared with a low molecular weight ethyl-

Pore Structure Characterization of Barrier Coatings for Paper and PaperboardPaul D. Fleming III and Margaret K. JoyceCenter for Coating DevelopmentDepartment of Paper Engineering Chemical Engineering and ImagingWestern Michigan University

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ated starch, Penford Gum 290. The nano-clay was added to determine its in-fluence on the porosity of the paper in comparison to just starch alone. All coatings were applied at approximately 20% solids at 90° F. The viscosities of the coatings were all below 100 cP. The coat-ings were applied to an unsized (HST 0.4 sec), 70 g/m2 unbleached Kraft basepaper using an im-pregnator coater.

The pore size of the un-treated basepaper was analyzed using a Mi-cromeritics AutoPore IV mercury porosimeter. After treatment, resulting pores were analyzed using a Micromeritics TriStar BET gas adsorption ana-lyzer. The basepaper pore size distribution is given in Figure 1.

After coating, the pore size was reduced so much that Hg gave no useful results, so the TriStar was used with nitrogen gas to determine the pore size distributions of the coated paper. These are shown in Figure 2 for two differ-ent coat weights applied with the impregnator compared with the same coat weights applied with a conventional flooded nip size press (15,18). Note the extremely small volume of pores between 1 and 10 nm for the impregnated papers relative to the size press treated samples. The highest coat weight also shows a smaller tail on the pore size distribu-tion of the base paper (Figure 1). This is indica-

Figure 1. Pore size distribution of base unbleached Kraft paper obtained from a Micromeritics AutoPore IV Mercury porosimeter.

Figure 2.Pore size distribution of impregnator-coated and size press-coated paper with two different coat weights.

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Vol 18 No 1

tive of the very effec-tive barrier properties of these coatings. This is corroborated in the measurement of other barrier properties(15).Because of these sorts of characterizations of barrier coatings of paper and paperboard, Western Michigan Uni-versity, in collaboration with Michigan State University, has been chosen by the National Science Foundation to establish the Barrier Packaging Materials and Coatings Center as an IUCRC (Industrial University Cooperative Research Center) site(19). This Center will serve as a focal point for bar-rier packaging research in collaboration with suppliers and consum-ers of these materials.

References

1. C. P. Klass, “Emerging Barrier Coating Market Trends,” Bar-rier Coating Symposium, Western Michigan University, Kalamazoo, MI, Oct. 8-9, 2002.2. C. P. Klass, “Market Trends,” Barrier Coating Symposium, Kal-amazoo, MI, Oct. 12-13, 2004.3. J. McCracken and V. Bell, “Worldwide Environmental Packag-ing Mandates,” Barrier Coating Symposium, Western Michigan University Kalamazoo, MI, Oct. 8-9, 2002.4. J. McCracken, “Worldwide Environmental Packaging Man-dates,” International Association of Packaging Research Institutes (IA-PRI)-WORLDPAK Conference. East Lansing, MI, June 23-28, 2002.5. USFDA, “Unavoidable Con-taminants in Food For Human Consumption and Food-Packaging Material,” Code of Federal Regula-tions, Title 21, Volume 2, Chapter

1, Part 109, 2002.6. U.S. Congress, Office of Tech-nology Assessment, Biopolymers: Making Materials Nature’s Way-Background Paper, OTA-BP-E-102, Washington, DC: U.S. Government Printing Office, Sept. 1993.7. R. Alves and S. Jaime, “Stability of ‘Reqeijao Cremoso’ in Difference Packages at Dark Storage,” Inter-national Association of Packag-ing Research Institutes (IAPRI)-WORLDPAK Conference. East Lansing, MI, June 23-28, 2002.8. G. Mortensen and J. Sorensen, “Reduction of Photo-oxidative Quality Changes in Cheeses by Proper Packaging,” International Association of Packaging Research Institutes (IAPRI)-WORLDPAK Conference. East Lansing, MI June

23-28, 2002.9. A. Begin and Sean Bouchard, “Control of the Effect of Ethylene on Maturation of Tomatoes Packed in Modified Atmosphere. Initiation of Oxygen, Carbon Dioxide and Ethyl-ene and Mathematical Model Devel-opment,” International Association of Packaging Research Institutes (IAPRI)-WORLDPAK Conference. East Lansing, MI, June 23-28, 2002.10. P. Joshi, “Active Plastics Pack-aging,” International Association of Packaging Research Institutes (IA-PRI)-WORLDPAK Conference. East Lansing, MI, June 23-28, 2002.11. Lokendra Pal, Margaret K. Joyce and P. D. Fleming, “A Simple Method for Calculation of Perme-ability Coefficient of Porous Media,” TAPPI J., August 2006.12. Lokendra Pal, Margaret K. Joyce, Paul D. Fleming, and David E. Knox, “Shape Engineered Pig-ments Based Barrier Coatings for SBS Paperboard,” manuscript in preparation.13. Renmei Xu, Paul D. Fleming III, Alexandra Pekarovicova, and Valery Bliznyuk, “The Effect of Ink Jet Papers Roughness on Print Gloss and Ink Film Thickness,” J. Imag-ing Sci. Technol., 49 (6), Nov. / Dec. 2005, 660-665.14. Renmei Xu, Alexandra Pekarov-icova, Paul D. Fleming, and Valery Bliznyuk, “Physical Properties of LWC Papers and Gravure Ink Mileage,” Proceedings of the 2005 TAPPI Coating & Graphic Arts Conference, April 17-20, in Toronto, ON, Canada.15. Margaret K. Joyce, Thomas W. Joyce, Kapil Thomas, Tanuj Bajaj, and Jatetana Kunsriluksakal, “Us-ing an Impregnation (Controlled Penetration) Sizing Method for Improving the Barrier and Strength Properties of Paper and Board,” Invited Speaker, Internal and Sur-face Sizing PIRA Conference, Graz, Austria, 2003.16. D Jayaraman, M. K. Joyce and T. W. Joyce, “Nano-Talc Pigment Based Barrier Coatings,” Surface Coatings International, Sept. 2003, Vol. 86 Issue A07 p.281-284 Techni-cal Updates.17. http://www.nanocor.com/nano-clays.asp.18. Dale R. Dill, “Control and Un-derstanding of Size Press Pickup,” TAPPI J., 57(1): 97-100 (1974)19. http://www.wmich.edu/pci/lat-est/NSFIUCRC.html.

AutoPore IV Mercury Porosimeter

The Micromeritics medal for best poster of CATSA

2006 was presented for the poster “Separation of a homogeneous catalyst from an alkene metathesis reac-tion by using nanofiltration” authored by Percy van der Gryp, Sanette Marx, and Mannie Vosloo of North-West University, South Africa.

This poster presented the results of an investigation into the separation and recovery of a Grubbs first generation catalyst using solvent-resistant nanofiltra-tion membranes. This study evaluated different com-mercial polymeric filtration membranes which were tested for compatibility and stability in a system consist-ing of the Grubbs catalyst and a 1-octene metathesis reaction product stream.

The Grubbs catalyst is a ruthenium-based catalyst that is quite expensive and difficult to separate from re-action products so that very few commercial processes currently recover these cata-lysts in active form. Recov-ery and reactivation of these catalysts using the nanofil-tration techniques presented in this poster will result in significant cost savings in these processes.

Please join Micromeritics in congratulating Gryp, Marx, and Vosloo on this significant research and for winning the Micromeritics CATSA 2006 Medal for the best poster.

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Vol 18 No 1

Percy van der Gryp Wins the Micromeritics Medal for Best Poster at the Annual Meeting of CATSA 2006

Dr. Jeff Kenvin (left) presenting CATSA Micromeritics medal to Percy van der Gryp. The poster session was judged by Dr. Albert Carley (right).

The CATSA Micromeritics Medal

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Greg ThieleBusiness Managermas@micromeritics.comwww.particletesting.comPhone: 770-662-3630

One year ago Micromerit-ics Analytical Services promised to improve cus-tomer service by shorten-ing turnaround time for all samples, contacting all customers when samples arrive and upon comple-tion of the analysis. We also promised to continue finding new methods to help solve existing prob-lems. We are well on our way to accomplishing our customer service goals and are pleased to present the following posters to help address some common ap-plication problems.

Nanoparticle Size CalculationsInterest in nanoparticles has risen consistently and rap-idly in recent years, but one problem has remained; what is the “best” way to deter-mine the size of these ma-terials, especially nanopar-ticles which are not in a stable colloidal suspension. These types of nanoparticles form aggregates which, for the most part, are irrevers-ible and have properties of both the primary nano material and the aggregated material. So the real ques-tion becomes, do you want to know the primary particle size or the aggregated par-ticle size?

Micromeritics Analytical Services compared three common techniques used to determine nanoparticle size and summarized the find-ings in a poster which will be presented at the 2007

Dissolution Solutions for Pharmaceutical CompaniesPharmaceutical manufac-turers create formulations and tablets designed to dis-solve at a specific rate after ingestion. Many factors can affect this rate, but we focus primarily on the physical properties of the raw mate-rials and the final product. Micromeritics Analytical Services has the expertise to evaluate your needs and recommend tests which may identify sources of prob-lems. Routinely we perform work with pharmaceutical companies trying to find the answers to a common question, “Why is my sample

Pittsburgh Conference in Chicago. You may also view the poster online at www.particletesting.com/down-loads.

In conjunction with this, MAS has begun offering a new service for nanoparti-cles which will allow cus-tomers to submit samples for nanoparticle size which will be calculated from BET surface area and true den-sity.

not behaving the same as it did yesterday or as we designed it to work.” The answer quite often is found by studying the BET surface area, particle size, particle morphology, pore size, and density.

A case study looking at pore size, surface area, and morphology of magnesium stearate was performed by Micromeritics Analytical Services. The findings are presented in a poster which can be viewed at the 2007 Pittsburgh Conference or online at:www.particletesting.com/downloads.

Nickel

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Training 2007

AutoPore IV 9500 SeriesMarch 13 - 15

TriStar 3000March 20 - 22

Elzone II 5390April 17 - 19

ASAP 2020 Physisorption and ChemisorptionApril 24 - 27

ASAP 2020 PhysisorptionApril 24 - 26

AutoChem II 2920June 5 - 7

Sedigraph 5120 June 12 - 14 For additional informa-tion or to register for the class of your choice, contact the Micromeritics Training Department at 770.662.3607. Early registration is recom-mended since class space is limited.

See our website for complete course schedule.www.micromeritics.com

Micromeritics Instrument Training Courses

Training is provided for most Micromeritics instrumentation at the time of installation. This training presents all the infor-mation required for a new opera-tor to quickly become proficient operating the instrument. In cases where personnel changes occur or more advanced train-ing is required, Micromeritics conducts a variety of classes for many of our instruments. These courses are held at our head-quarters in suburban Atlanta, Georgia. The courses include:

Detailed Operational ProceduresItems covered are effective sam-ple file creation, use of analysis parameters, and manual sample entry. You´ll learn how to utilize the full power and flexibility of the operating software.

Automatic AnalysisDevelop correct analysis pro-cedures to optimize collection of accurate, reproducible data. Much of the class time is spent performing analyses in a con-trolled, tutorial environment.

Systems UtilitiesDiscover all of the instrument software utilities which help you manage sample informa-tion files and directories, pro-tect data, and select system options.

TroubleshootingLearn techniques that enable you to locate and quickly resolve instrument problems.

EventsPittcon 2007February 25 - March 2, 2007 McCormick Place booths 2328, 2428

Chicago, IL

American Chemical SocietyMarch 25 - 29, 2007McCormick Place booth 939

Chicago, IL

Report Generation and ComprehensionLearn to configure reports and obtain more useful information, as well as improve comprehen-sion of the reports produced.

User MaintenancePractice routine maintenance procedures which improve operation, reduce downtime, and increase data accuracy.

Theory OverviewLearn about the scientific theory upon which each instrument is based and how it applies to the critical factors relevant to suc-cessful sample preparation and analysis performance.

EnrollmentTraining courses last from 2 to 4 days and are designed to provide hands-on, performance-based instrument knowledge. Small classes guarantee close individual attention. Included in the course materials are a Study Guide, an instrument Operator´s Manual, and other handout materials. Certificates of Completion are also awarded.

See our website for a complete Event schedule www.micromeritics.com

Interphex 2007April 24 - 26, 2007Jacob Javits Convention Centerbooth 234

New York, NY

NanoTechMay 20 - 24, 2007Santa Clara Convention Centerbooth 309

Silicon Valley, CA

North American Catalysis SocietyJune 18 - 21, 2007Hilton Americas Houston, TX

International CarbonConferenceJuly 15 - 20, 2007Sheraton Hotel and TowersSeattle, WA

Attending the recent ASAP 2420 class are L to R: Sam Robinson, Micromeritics; Emeraldo Salinas, Shell Oil; Pamela Blonigen-Platz, Imation; and instructor Ana Vazquez-Medina.

Micromeritics offers over 50 sales, service, and distribution offices through-out the world. For additional information, a free product demonstration, or the location of the office nearest you, call or write:

The microReport newsletter is published by Micromeritics Instrument Corporation.Editor: James Kerce,(770) 662-3654

Subscriptions are free to particle technology users and can be started simply by writing to The microReport editor.

Copyright 2007 Micromeritics Instrument Corporation. All rights reserved.

All trademarks noted herein are the property of their respective owners.

MicromeriticsOne Micromeritics DriveNorcross, GA 30093-1877, U.S.A.

microReportthe

The Science and Technology of Small Particles™

Micromeritics GmbHErftstrasse 54D-41238 Mönchengladbach, GERMANYTel: (+49) (0)2166-98708-00Fax: (+49) (0)2166-98708-88

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Micromeritics N.V./S.A.Eugene Plaskylaan 140B1030 Brussels, BELGIUMTel: (+32) 2-743-39-74Fax: (+32) 2-743-39-79

Micromeritics SRLVia W. Tobagi n. 26/720068 Peschiera BorromeoMilano, ITALYTel: (+39) (0)2 553 02833Fax: (+39) (0)2 553 02843

Micromeritics Instrument CorporationOne Micromeritics DriveNorcross, GA 30093-1877 USATelephone:U.S. Sales (770) 662-3633International Sales (770) 662-3660Fax: (770) 662-3696WEB: www.micromeritics.com

SUBSIDIARIES:Micromeritics ChinaApt. 5H, No. 1 Building Hua-Ao (Epoch Center)No. 31 Zi Zhu Yuan Road, Hai Dian District Beijing 100089, P.R., CHINATel: (+86) (0)10-6848-9371Fax: (+86) (0)10-6848-9371

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HEADQUARTERS:

We welcome articles and information concerning particle technology appli-cations performed with Micromeritics instrumentation. Everything from a single plot with operating conditions to an in-depth article on physisorp-tion, chemisorption, etc. with sup-porting graphs will be considered. If your material is published in The microReport, you will receive a copy of Analytical Methods in Fine Particle Technology by Paul A. Webb and Clyde Orr.

Send your article to:James Kerce, EditorThe microReportMICROMERITICSOne Micromeritics DriveNorcross, GA 30093-1877james.kerce@micromeritics.com

Include your title, return address and phone number. Contributions cannot be returned, but each will be acknowl-edged.

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