saaticomposites er450 v08 · er450 is a toughened epoxy prepreg developed specifically for a wide...

ER450 EPOXY MATRIX ER450 EPOXY MATRIX ER450 EPOXY MATRIX ER450 EPOXY MATRIX

ER450 EPOXY MATRIX

GENERAL FEATURES

ER450 is a toughened epoxy prepreg developed specifically for a wide range of structural applications in automotive, aerospace, industrial and sporting goods.

It features a flexible processing cycle with a range of cure temperatures from 80°C to 180°C (from 176°F to 356°F) and lamination by autoclave, hot press molding or vacuum bag processes.

MAIN CHARACTERISTICS

� Flexible cure: 80÷180°C

� Maximum Tg of 210°C (410°F).

� Maximum service temperature of 180°C (356°F).

� Autoclave, press or vacuum bag processing.

� Toughened epoxy matrix.

� Solvent free.

� Available on a wide range of reinforcements (carbon, glass, aramid and hybrids, UD, fabrics and multi-axial).

� Mechanical properties suitable for structural requirements.

� Up to 45 days shop life at room temperature.

� Controlled flow system.

QUICK REFERENCE TIPS

The standard cure cycle of 135°C (275°F) for 2 hours achieves high conversion and optimal mechanical performance; however, good conversion can be obtained in as little as 1 hour @ 120°C (248°F). A post-cure at 200°C (392°F) may be used in order to obtain the maximum glass transition temperature.

ER450 EPOXY MATRIX ER450 EPOXY MATRIX ER450 EPOXY MATRIX ER450 EPOXY MATRIX ER450

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OPERATIONAL INSTRUCTIONS

CURE PROCESS RECOMMENDATIONS This epoxy matrix system can be processed under a very wide range of temperature as described below:

Temperature °C (°F) Time Tg °C (°F) DSC Tg °C (°F) E’ DMA

80 (176) 16h 96 (205) -

120 (248) 1h 135 (275) -

135 (275) 2h 161 (322) 171 (333)

160 (320) 1,5h 171 (340) 173 (343)

180 (356) 2h 176 (349) 180 (356)

Custom cure cycles can be developed in conjunction with the SAATI Technical Department.

AUTOCLAVE

The standard cure cycle is shown below:

Step Temperature

°C (°F)

Time

(min)

Heating rate to

isothermal

°C/min (°F/min)

Pressure

bar (psi)

1 25 (77) – – Vacuum -0.8 (-11.6)

2 135 (275) – 1÷3 (1.8-5.4) 3÷7 (43-102)*

3 135 (275) 120 – 3÷7 (43-102)

4 65 (149)** – 3÷5 (5.4-9.0) 3÷7 (43-102)

5 25 (77) – – –

* Vent the vacuum when the pressure reaches 1 bar. ** The part can be removed when the part temperature is less than 65°C (150F)

POST-CURE (OPTIONAL) After the initial cure, a post-cure may be used in order to obtain the maximum glass transition temperature:

Cure

Cycle

Post-Cure

Temperature

°C (°F)

Post-

Cure

Time

Tg °C (°F)

E’DMA

Ramp

rate

Tg °C

(°F)DSC

90’@130°C 180 (356) 2h 180 (356) 0.3°C/min

181 (358)

8h@90°C 200 (392) 2h - 2°C/min

210 (410)


RESIN MATRIX

GENERAL PROPERTIES

Property Unit Value Standard

Storage life @ -18°C (0°F) months 12

Out life @ 23°C (73°F) days 45

Prepreg volatiles %wt < 1 ASTM D3530-97R03

Cured resin density g/cm3 1.23 ASTM D792-00

Tg (DSC) °C (°F) 181 (358) ASTM D3418-03

Tg E’ (DMA)* °C (°F) 171 (333) ASTM E1640-09

Tg Peak Tan δ (DMA)* °C (°F) 187 (363) ASTM E1640-09

Tack medium

Max Dry Tg (DMA)**

°C (°F) 180 (356) ASTM E1640-09

Max Wet***

Tg E’ (DMA) °C (°F) 120 (248) ASTM E1640-09

* Laminate after cure at 135°C for 2hours. ** Laminate after cure at 180°C for 2hours. *** Laminate saturated at 85°C / 85%R.H.

THERMO-MECHANICAL DMA ANALYSIS DMA trace of ER450 laminate cured in autoclave 2h@135°C.

DMA Analysis ��Hz�


VISCOSITY PROFILE

Viscosity profile� temperature vs complex viscosity

Resin complex viscosity is measured under 3°C/min heating rate, 1Hz oscillating frequency.

GEL TIME

Temperature

°C (°F)

Gel Time

(min)

80 (176) 400

100 (212) 85

120 (248) 17

135 (275) 5,5

150 (302) 4

ER450 EPOXY MATRIX ER450 EPOXY MATRIX ER450 EPOXY MATRIX ER450 EPOXY MATRIX

CURED PREPREG

MECHANICAL PROPERTIES OF UNIDIRECTIONAL PREPREG LAMINATES

Test carried out at room temperature Cure condition: 2 hours @135°C Values normalized to 60%Vf (except for PR, ILSS, IPSS and IPSM)

Cured Material

Property

Test

method Units

Material

IM T800

150

ER450 35%

HS T700 150

ER450 35%

Tensile Modulus

ASTM

D3039-00

GPa (Msi) 179 (25.9) 139 (20.2)

Tensile Strength MPa (ksi) 2697 (391) 2580 (374)

Poisson’s ratio – 0.37 –

Compressive Modulus SACMA

SRM 1R94

GPa (Msi) 143 (20.6) –

Compressive Strength MPa (ksi) 1461 (212) –

In-Plane Shear Modulus ASTM

D3518-94

GPa (Msi) 4.37 (0.634) 3.40 (0.493)

In-Plane Shear Strength* MPa (ksi) 79.4 (11.5) 67.3 (9.76)

Flexural Modulus ASTM

D790-03

GPa (Msi) 161 (23.3) 131 (19.0)

Flexural Strength MPa (ksi) 1935 (281) 1934 (281)

Interlaminar Shear

Strength

ASTM

D2344-00 MPa (ksi) 95.9 (13.9) –

Interlaminar Fracture

Toughness GIC ASTM

D5528-01

J/m2

(lb-in/in2)

500 ÷ 600

(2.86 - 3.43)

200 ÷ 300

(1.14 - 1.72)

(*) at 5% calculated shear strain

IM T800 150 ER450 35%: 150gsm Unidirectional Prepreg; 24K T800 fiber

HS T700 150 ER450 35%: 150gsm Unidirectional Prepreg; 24K T700 fiber


MECHANICAL PROPERTIES OF FABRIC PREPREG LAMINATES

Test carried out at room temperature Cure condition: 2 hours @135°C Values normalized to 55%Vf (except for PR, ILSS, IPSS and IPSM)

Cured Material

Property

Test

method Units

Material

CC 204

ER450 42%

CC 420

ER450 40%

CC 206

ER450 43%

Tensile Modulus

ASTM

D3039-00

GPa (Msi) 77.4 (11.2) 68.1 (9.88) 66.1 (9.59)

Tensile Strength MPa (ksi) 1172 (170) 1037 (150.4) 747 (108.3)

Poisson’s ratio – 0.06 0.08 0.08

Compressive Modulus SACMA

SRM 1R94

GPa (Msi) 67 (9.7) – 60.4 (8.76)

Compressive Strength MPa (ksi) 739 (107) – 660 (95.7)

In-Plane Shear Modulus ASTM

D3518-94

GPa (Msi) 3.93 (0.570) 3.80 (0.551) –

In-Plane Shear Strength* MPa (ksi) 106 (15.4) 65.3 (9.47) –

Flexural Modulus ASTM

D790-03

GPa (Msi) 74.5 (10.8) 53.4 (7.75) 58.6 (8.50)

Flexural Strength MPa (ksi) 1126 (163.3) 1038 (150.6) 1026 (148.8)

Interlaminar Shear

Strength

ASTM

D2344-00 MPa (ksi) 74.8 (10.8) – 68.8 (9.98)

Interlaminar Fracture

Toughness GIC ASTM

D5528-01

J/m2

(lb-in/in2)

410 ÷ 450

(2.86 - 3.43)

450 ÷ 550

(2.57 - 3.14) –

(*) at 5% calculated shear strain

CC 204 ER450 42%: 200gsm 2/2 Twill 6K T800 fiber

CC 420 ER450 40%: 416gsm 2/2 Twill 12K T700 fiber

CC 206 ER450 43%: 204gsm 2/2 Twill 3K TR30 fiber


SAFETY CONSIDERATIONS

• Please consult the Material Safety Data Sheet.

• This product contains epoxy resin, and may cause allergic reaction.

• The use of latex gloves for handling is recommended.

• Waste material should be discarded following national law.

DELIVERY FORM AND PACKAGING

Custom widths, roll size, and packaging are available on request.

Prepreg fabrics: Supplied on 75 mm (3”) diameter cardboard cores with release paper on one side and polyethylene film separator on the other side. Rolls are sealed plastic bags and packed in cardboard boxes.

Standard width: 100 cm or 127 cm (50 “). Standard length: 50 m (50 ln yds).

Unidirectional Prepreg: Supplied on 300 mm (12”) diameter cardboard cores with release paper on one side and smooth polyethylene film separator on the other side. Rolls are sealed in plastic bags and packed in cardboard boxes.

Standard width: 60cm (from 30cm up to 90cm). Standard length: 100 m.

Shipment: Product should be shipped at < -12 °C ( <10 °F)

HANDLING AND CONDITIONING

• Store rolls at -18 °C, sealed in original packages.

• Shop life at 23°C refers to rolls sealed in original packages.

• Before using the prepreg, remove the roll from the freezer and let it warm up to room temperature for 6 hours sealed in its original package.

Important notice: The data and statements supplied in this datasheet are met to provide an overview of this product and its properties. Users should perform their own verification and testing to determine suitability of this material for their specific end use applications. NO WARRANTY OF FITNESS FOR A PARTICULAR PURPOSE IS EXPRESSED OR IMPLIED. Nothing herein is to be taken as permission to practice any patented invention without a licence. Copyright SAATI S.p.A, March 2013, All rights reserved. RDS 10.002, Rev.08

SAATI S.p.A. Via Quasimodo 33 20025 Legnano (MI) Italy Phone: (+39) 031 9711 Fax: (+39) 031 933392 E-mail: [email protected]

SAATI Americas 201 Fairview St. Ext. Fountain Inn, SC 29644 Phone : (+1) 914.7679300 FAX : (+1) 914.232.4004 E-mail: [email protected]

www.saati.com

saaticomposites er450 v08 · er450 is a toughened epoxy prepreg developed specifically for a wide...

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