A.15.1.
Cycom C69

PRODUCT

Type

Prepreg for laminates.

Chemical Composition

Modified epoxy/High modulus carbon fibres.

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

EXPERIENCE & AVAILABILITY

Development Status

Commercial Product

Cost Range

High

Lot Reproducibility

Very Good

Space Experience

Fair

GENERAL PROPERTIES (Physical, Mechanical, Thermal, Electrical, Optical)

Nature

Typical Value

Remarks

Specific Gravity

1.63

 

0° Tensile Strength

930 MPa

Manufacturer’s Data

0° Tensile Modulus

195 GPa

Manufacturer’s Data

90° Tensile Strength

33 MPa

Manufacturer’s Data

90° Tensile Modulus

8.2 GPa

Manufacturer’s Data

0° Interlaminar

70 MPa

(Span:Depth = 5:1) @ 21°C

Thermal Expansion Coefficient

Long. –0.7 x 10-6 °C –1

Trans. 30 x 10-6 °C –1

Manufacturer’s Data

Manufacturer’s Data

PROPERTIES RELEVANT TO SPACE USE

Nature

Typical Value

Type of Test

Temperature Range

-130°C to 180°C.

Manufacturer’s Data

Outgassing

TML = 0.6%, RML =0.3%, CVCM = 0.01%

ECSS-Q-70-02

Humid Heat

750 hours – no sizeable effect

70°C – 95%

SPECIAL RECOMMENDATIONS

·          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.