Tradition and innovation E3 MATRIX SERIES

Tradition and innovation

Note: All technical information contained in this document are given in good faith and are based on test believed to be reliable, but their accuracy and completeness are not guaranteed. They do not

constitute an offer to any person and shall not be deemed to form the basis of any contract. Accordingly, the user shall determine the suitability of the products for their intended use prior to purchase

and shall assume all risk and liability in connection therewith. The information contained herein is under constant review and liable to be modified. All products are sold subject to Microtex

Composites Srl terms and conditions of sale

Copyright 2018 - Microtex Composites Srl. All rights reserved worldwide. All trademarks or registered trademarks are the property of their respective owners

Issued:10/01/18

MICROTEX COMPOSITES SRL

Via Toscana,59 59100 Prato

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Datasheet Prepreg E3 ENGrev5.8

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E3 MATRIX SERIES

E3 MATRIX SERIES is a thermosetting epoxy matrix family with process temperatures ranging from 80°C

to 140°C; The system is designed for structural applications and is available in several product variants

including one for Flame Retardant applications (complying with UL94 V-0 specifications for carbon fiber

laminate thickness from 3.6mm onward); FR third party lab certifications are available upon request.

The viscosity of the system epoxy matrices offer flexible processing and a range of handling characteristics.

E3 matrix exhibit high mechanical properties and, properly postcured, can be used at continuous operating

temperatures up to 100°C. Higher not continuous operating Temperatures can be supported

Product Variants

E3-150: Standard, unpigmented

E3-150 N: Light black pigmented

E3-150 N2: Heavy black pigmented

E3-150HM: Hotmelt version, unpigmented (-150HMRF: special version; low dielectric epoxy system)

E3-300: Flame Retardant (experimental grade)

E3-120: Designed for structural applications and can be used for very large components (low exotherm)

Features

- general structural applications

- good mechanical performances

- high toughness

Tipical Applications

Automotive

Motorsport

Radome and Antennae, Reflectors (E3-150HMRF)

Prepreg shelf life : E3-150/N/N2/HM E3-300 E3-120

12 months @ -18°C 12 months @ -18°C 12 months @ -18°C

4 weeks @ 21°C 4 weeks @ 21°C ≥6 weeks @ 21°C







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Rheology data

Viscosity curves

E3-150/150N/150N2/HM 2°C/min --- strain % 0.1, frequency 1.0 Hz

Property

Value

2°C/min

Minimum viscosity (Pa.s)

2.88

Temperature at minimum viscosity (°C)

109.86







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E3-300 2°C/min --- strain % 0.1, frequency 1.0 Hz

Property

Value

2°C/min


1.22


110.85







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E3-120 2°C/min --- strain % 0.1, frequency 1.0 Hz

Property

Value

2°C/min


1.66


114.26







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Gel Time (HOT PLATE)







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Curing Conditions (E3-150/150N/150N2/HM/300/120)

Autoclave Cure

Vacuum bag pressure: 0.9 bar

Autoclave pressure: 4-7 bar(*)

Ramp rate: 1÷5 °C/minute

Cure cycle: 90 minutes@130°C (+5/-0°C)

Cool rate: 2÷3 °C/min until 60°C

(*)on a sandwich production, adjust the pressure on core specification to avoid buckling and /or distortion







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Alternative Cure Cycles and Tgdry

Cure Cycle Tg (IEC1006)°C Tg(DMA)°C (Onset) Tg(DMA)°C (Tan Delta)

E3-150/150N/150N2

8h@80°C 100÷105 - -

1h@130°C 100÷105 - -

90’@130°C 120÷125 110 140

90’@130°C+1h@150°C 135÷140 - -

Max Wet Tg (Wet conditioning 14 days

immersion in water @ 70°C)

- 81 102

E3-150HM

16h@80°C 80÷85 - -

4h@100°C 115÷120 - -

2h@120°C 125÷130 - -

1h@130°C - 111 -

1h@120°C+2h@140°C 145÷150 - -

E3-300

1h@130°C 120÷125 - -

1h@130°C + 2h@150°C 155÷160 130 155÷160

E3-120

90’@130°C 115÷120 113 130

2h at 70°C + 10 h at 90°C 100÷105 - -

Matrix Properties (cure cycle:1h @ 120 °C + 2h @ 140 °C; E3-150/150N/150N2/150HM)

Density@RT (average Value): 1,18g/cm3

Matrix Properties (cure cycle:1h @ 130°C; E3-300)

Density@RT (average Value): 1,30-1,35g/cm3

Matrix Properties (cure cycle:1h @ 120 °C + 2h @ 140 °C; E3-120)

Density@RT (average Value): 1,18g/cm3







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Laminate Mechanical Properties (E3-150/150N/150N2/HM)

Cure cycle: 120 minutes at 120°C , 6.0 bar Room temperature, dry Ramp rate = 2°C/min Cool rate = 3°C/min - Test conditions: 23°C

Test Reference Material

GG200T-421 GG380T-382 GG630T-373 GG800T-34 4

0° Tensile strength (MPa) ASTM D3039

(Normal. Vf 55%)

773.50 986.52 918.10 -

0° Tensile modulus (GPa) 54.80 59.80 58.60 -

90° Tensile strength (MPa) 647.50 943.59 738.20 -

90° Tensile modulus (GPa) 51.10 59.72 59.20 -

45° Tensile strength (MPa) 207.10 - 125.40 -

45° Tensile modulus (GPa) 13.80 - 13.80 -

Poisson - - 0.04 -

0° Compressive strength (MPa) ASTM

D6641

(Normal. Vf 55%)

- 679.83 468.00 -

0° Compressive modulus (GPa) - 55.61 - -

90° Compressive strength (MPa) - 690.06 - -

90° Compressive strength (MPa) - 56.43 - -

0° Compressive strength (MPa) ASTM D3410

(Normal. Vf 55%)

496.00 - - -

90° Compressive strength (MPa) 482.00 - - -

0° Compressive strength (MPa) SACMA SRM 1R-94 - 450.29 461.20 -

In plane shear strength (IPSS) ASTM D3518

- 99.50 58.20 -

In plane shear modulus (IPSM) - 3.33 3.40 -

0° Interlaminar shear strength (ILSS) EN 2563

57.00 67.70 60.70 51.00

90° Interlaminar shear strength (ILSS) - 65.20

0° Flexural Strength (MPa) ASTM D790

- - 797.70 -

0° Flexural modulus (GPa) - - 60.50 -

0° Flexural Strength (MPa) ASTM D5528-01 - 835.20 -

0° Flexural modulus (GPa) - 50.90 -

Mode I Strain Energy release Rate

G1c (J/m2)

ASTM D5528

MBT METHOD

- 1250-1350 1400-1500 -

1 HS Carbon fabric 200 gsm twill 2/2 3K Pyrofil TR30S Rc 42% 2 HS Carbon fabric 380 gsm twill 2/2 12K ZH SYT49S Rc 38% 3 HS Carbon fabric 630 gsm twill 2/2 12K Pyrofil TR50 Rc 37% 4 HS Carbon fabric 800 gsm twill 2/2 24K Pyrofil G34700 Rc 34%







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GG200T800-445


1070.00

0° Flexural Modulus (GPa) 66.30

0° Tensile Strength (MPa) ASTM D3039

(Normal. Vf

55%)

1125.00

0° Tensile modulus (Gpa) 75.20



Test

Reference

Material

GT135UD-366 UD200HM -337

0° Tensile strength (MPa) ASTM

D3039

(Normal. Vf

60%)

2313.06 1508.00

0° Tensile modulus (GPa) - 182.00

90° Tensile strength (MPa) - 13.00


45° Tensile strength (MPa) - 47.40



D3410

(Normal. Vf

60%)

- 687.00

90° Compressive strength (MPa) - 137.00

0° Interlaminar shear strength

(ILSS)

EN 2563

86.67 -


1631.74 -

0° Flexural modulus (GPa) 108.78 -

5 HS Carbon fabric 200 gsm twill 2/2 6K T800 HB 6 HS Carbon 135 gsm UD 24 K MR60H Rc 36% 7 HM Carbon UD 200 gsm Pyrofil HR40 Rc 33%







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Test

Reference

Material

VV770-358

VV302-409

VV194-4210

AA285-5011

0° Tensile Strength (MPa) EN ISO

527:1997

(Normal. Vf

55%)

514.59 470.00 466.00 -

0° Tensile Modulus (Gpa) 24.90 23.30 23.30 -

0° Poisson Ratio 0.13 - - -

90° Tensile Strength (Mpa) 420.52 - - -

0° Tensile Modulus (Gpa) 25.07 - - -

90° Poisson Ratio 0.13 -

0° Compression Strength (Mpa) ASTM

D6641:14

(Normal. Vf

55%)

514.59 - 525.00 -

0° Compression Modulus (Gpa) 26.45 - 23.50 -

90° Compression Strength (Mpa) 426.06 - - -

90° Compression Modulus (Gpa) 26.78 - - -

+-45° In Plane Shear Strength

(Mpa)

EN

6031:2015

124.60 - - -

+-45° In Plane Shear Modulus

(Gpa)

3.42 - - -

+-45° Poisson Ratio 0.63 - - -

0° ILSS (MPa) ISO

14130:1998

54.17 66.00 - 43.00

90° ILSS (MPa) 54.53 - - -

8 Glass 770 gsm 3x1T E-Glass Roving 1200 Tex Rc 35% 9 Glass 302 gsm E-Glass Style 7581 Rc 40% 10 Glass fabric 194 gsm twill 2/2 E-Glass Roving EC 9 68 Rc 45% 11 Aramid Style 285 170gsm Plain 1270 Dtex Rc 50%







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Comparison of balanced fabrics produced with different HS Fibers

Fiber Mechanical Properties:

Fiber Properties T700SC TR50S SYT-49

Tensile Properties Modulus (Gpa) 230 240 230

Strength (Gpa) 4900 4900 4900

El @ break (%) 2.1 2 2.1

Density (g/cm3) 1.8 1.82 1.79

Yeld (Tex) 800 800 800

Fiber Diam. (µm) 7 7 7

Precursor - PAN PAN PAN

Comparative Test Table:

380T (0°)

T700 SC 12K

380T (90°)

T700 SC 12K

380T (0°)

TR50S 12K

380T (90°)

TR50S 12K

380T (0°)

SYT-49 12K

380T (90°)

SYT-49 12K

ASTM D790

Flex Strength (MPa) 825.00 856.00 943.00 940.00 964.00 910.00

Flex Mod. (GPa) 48.60 46.40 46.40 58.90 57.40 57.00

ASTM D3039

Tens. Strength

(Mpa)

843.00 823.30 822.30 810.30 - -

Norm. V. @ 55%







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GG630T SYT49-3512

0° Tensile strength (MPa) ASTM D3039

(Normal. Vf 55%)

965.16

0° Tensile modulus (GPa) 63.96

90° Tensile strength (MPa) 773.81

Poisson 0.06


D6641

(Normal. Vf 55%)

461.32

0° Compressive modulus (GPa) 56.69

±45° In plane shear strength

(MPa)

ASTM D3518 84.79

±45° In plane shear modulus

(GPa)

2.28

±45° In plane sheaer poisson

ratio

0.75

0° Flexural strength (MPa) ASTM

D790

755.32

0° Flexural modulus (GPa) 52.70


(ILSS)

EN 2563

55.12

Laminate Mechanical Properties (E3-300)

Cure cycle: 60 minutes at 130°C , 6.0 bar Room temperature, dry Ramp rate = 2°C/min Cool rate = 3°C/min -Test conditions: 23°C


GG630T-3713


800.00

0° Flexural modulus (GPa) 43.75

Mode I Strain Energy release

Rate G1c (J/m2)

ASTM D5528

490-510 (Tg 120-125°C)

12 HS Carbon fabric 630 gsm twill 2/2 12K SYT49S Rc 35% 13 HS Carbon fabric 630 gsm twill 2/2 12K Pyrofil TR50 Rc 37%







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Cure cycle: 2h at 70°C + 10 h at 90°C , 6.0 bar Room temperature, dry Ramp rate = 2°C/min Cool rate = 3°C/min - Test conditions: 23°C


UD600-38 14 GG630T-3715


(MPa)

EN 2563

68.50 -

Mode I Strain Energy release

Rate G1c (J/m2)

ASTM D5528 - 1000-1100 (Tg (DSC)

100÷105°C)




GG630-3616

GV325-3717


(Normal. Vf

55%)

959.91 -


(Normal. Vf

60%)

- 2255.39



(MPa)

ASTM D2344 52.62 59.93

Mode I Strain Energy release Rate

G1c (J/m2)

ASTM D5528 1050-1170 780-840

14 HS Carbon UD 600 gsm 24 K Pyrofil G34700WD RC 38% 15 HS Carbon fabric 630 gsm twill 2/2 12K Pyrofil TR50 RC 37% 16 HS Carbon fabric 630 gsm twill 2/2 12K SYT49S Rc 36% 17 GV 325 gsm SYT49 EC968 Rc 37%







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Exotherm test (E3-120)

The E3-120 range of prepregs are designed for industrial applications where a great control of adiabatic heat build up

(exotherm) is required in order to reduce dwell phases during the curing cycle.

Material GG800 – T12524K 00GX00999 – E3120-RC38%

Sample dimension: mm 150x150x55 (thickness)

Autoclave Cure Vacuum bag pressure: 0.9 bar

Autoclave pressure: 4 bar

Temperature steps: 1. Ramp 1°C/min 20-70°C

2. Isotherm 2h@70°C

3. Ramp 1°C/min 70-90°C

4. Isotherm 10h@90°C

The maximum T° recordered on the part is 99°C ; but further investigation should be performed on a largest part.

Laminate Performance Over RF Bands (E3-150HMRF)

Matrix Reinforcement X Band (8-12 GHz)

Dk Df

E3-150HMRF 7781 E Glass 4.50 0.022

E3-150HMRF VV190T E Glass 4.50 0.022

Cytotoxicity test E3-150 (ISO 10993-5 (2009))

Material GG630T-3518 E3-150N – thickness 1.2 mm

Cure cycle: 90 minutes at 130°C, 6.0 bar Room temperature, dry Ramp rate = 2°C/min Cool rate = 5°C/min

Result: test specimen did not show citotoxicity effect.

18 HS Carbon fabric 630 gsm twill 2/2 12K SYT 49 Rc 35%







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Racing Fuel, Oil and Coolant compatibility E3-150N

Absorption @ RT [Percent weight change following 1 day immersion]

Fluid type Material

GG410T-36 E3-150N19

Total WEC 2018 -0.199%

Elf Huile HTX 860 +0.002%

Elf RF1-CO-02 +0.314%

Absorption @RT [Percent weight change following 28 days immersion]

Fluid type Material

GG410T-36 E3-150N20

Total WEC 2018 -0.199%

Elf Huile HTX 860 +0.002%

Elf RF1-CO-02 +0.314%

Absorption @RT [Percent weight change following 28 days immersion]

Fuel type Material

GG380T-40 E3-150N21

RON 102 (E10) +0.207%

RON 98 +0.206%

19 HS Carbon fabric 410 gsm twil 2/2 12K Pyrofil TR50; 5 layers; cure cycle 90’@130°C 20 HS Carbon fabric 410 gsm twil 2/2 12K Pyrofil TR50; 5 layers; cure cycle 90’@130°C 21 HS Carbon fabric 380 gsm twill 2/2 12K Pyrofil TR50; 2 layers; cure cycle 90’@130°C







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Availability

E3 series prepregs are available in a wide range of reinforcing fabrics and UD tapes, including carbon, aramid,

glass and special fabrics.

Note: Where the intended end application is for a cosmetic product, customers are advised to consult a

Microtex Composites sales representative for specific advice when placing an order for material.

Exotherm risk

This matrix system can undergo severe exothermic heat up during the curing process if incorrect

procedures are followed. Great care must be taken to ensure that safe heating rates, dwell temperatures

and lay up/bagging procedures are properly executed, especially when moulding solid laminates with more

than 8mm thickness. The risk of exotherm increases with lay up thickness and increasing cure temperature.

It is strongly recommended that trials, representative of all the relevant processing parameters, are carried

out by the user to allow a safe cure cycle to be specified. It is also important to recognize that the model or

tool material and its thermal mass, combined with the insulating effect of breather/bagging materials can

affect the risk of exotherm in particular cases.Please contact our technical department for further

information on exotherm behavior of these systems.

Storage Conditions

This prepreg should be stored as received in a cool dry place or in a refrigerator.

After removal from refrigerator storage, prepreg should be allowed to reach room temperature before

opening the polyethylene bag, thus preventing condensation.

(A full reel in its packaging can take more than 1 day).

Precautions for Use

The usual precautions when handling uncured resins and fibrous materials should be observed, and a Safety

Data Sheet is available for this product.

SDS Reference Codes:

E3-150/N/N2/HM/120: SDS-102

E3-300: SDS-105

Documents

Tradition and innovation E3 MATRIX SERIES