A.15.1.
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PRODUCT |
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Type |
Prepreg for laminates. |
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Chemical Composition |
Modified epoxy/High modulus carbon fibres. |
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Manufacturer |
Cytec Fiberite Ltd. Abenbury
Way, Wrexham Ind. Est. Wrexham
LL13 9UZ, Clwyd UK |
Tel: +44 (0)1978 665 200 Fax: +44 (0)1978 665 222 Email: www.cytec.com |
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EXPERIENCE & AVAILABILITY |
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Development Status |
Commercial Product |
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Cost Range |
High |
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Lot Reproducibility |
Very Good |
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Space Experience |
Fair |
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GENERAL PROPERTIES (Physical,
Mechanical, Thermal, Electrical, Optical) |
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Nature |
Typical Value |
Remarks |
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Specific Gravity |
1.63 |
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0° Tensile Strength |
930 MPa |
Manufacturer’s Data |
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0° Tensile Modulus |
195 GPa |
Manufacturer’s Data |
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90° Tensile Strength |
33 MPa |
Manufacturer’s Data |
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90° Tensile Modulus |
8.2 GPa |
Manufacturer’s Data |
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0° Interlaminar |
70 MPa |
(Span:Depth = 5:1) @ 21°C |
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Thermal Expansion Coefficient |
Long. –0.7 x 10-6 °C –1 Trans. 30 x 10-6 °C –1 |
Manufacturer’s Data Manufacturer’s Data |
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PROPERTIES RELEVANT TO SPACE USE |
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Nature |
Typical Value |
Type of Test |
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Temperature Range |
-130°C to 180°C. |
Manufacturer’s Data |
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Outgassing |
TML = 0.6%, RML =0.3%, CVCM = 0.01% |
ECSS-Q-70-02 |
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Humid Heat |
750 hours – no sizeable effect |
70°C – 95% |
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SPECIAL RECOMMENDATIONS |
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·
Recommended cure is one step at 140°C, pressure application
(0.7 MPa), then 1 hour at 170°C. Post cure: 3 hours at 180°C. ·
The same resin can accommodate High Strength (HT-S)
or type AS carbon fibres. ·
When continuous use temperature does not exceed
120°C, another prepreg with similar properties, Carboform 87, can be used. |
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