Unidirectional prepreg and carbon fiber reinforced composite mat

Details Unidirectional prepreg and carbon fiber reinforced composite mat Unidirectional prepreg and carbon fiber reinforced composite mat

1995-05-03

1996-09-03

Withers, James

Stock material or miscellaneous articles

Web or sheet containing structurally defined element or...

Noninterengaged fiber-containing paper-free web or sheet...

156176, 156178, 205176, 4273722, 4273741, 428297, 428298, 428302, 428408, 428902, D04H 302, B32B 506, B32B 2902, B05D 302

Patent

active

055522149

ABSTRACT:
A pitch-based carbon fiber reinforced composite material is improved with regard to its compressive strength and compression strain at failure by combining polyacrylonitrile-based carbon fibers. The pitch-based carbon fibers have a modulus in tension of not less than 400 GPa, a tensile strength of not less than 2000 MPa, a compressive strength as a unidirectionally reinforced composite material of 100 MPa to 800 MPa and a fiber diameter of 4 .mu.m to 15 .mu.m and the polyacrylonitrile-based carbon fibers have a modulus in tension of not less than 200 GPa, a compressive strength and compression strain at failure as a unidirectionally reinforced composite material larger than those of the pitch-based carbon fibers, and a fiber diameter smaller than that of the pitch-based carbon fibers.

REFERENCES:
patent: 4808481 (1989-02-01), Luxon
patent: 4868050 (1989-09-01), Tanaka et al.
patent: 5171419 (1992-12-01), Wheeler et al.
A Study of the Adhesion of Carbon Fiber and Glass Fiber Reinforced Epoxy Resin and its Fracture Mechanics pp. 107-113.
Carbon Fiber Directory, Pummac Directories Limited, CT 7, CT 16, CT 19, CT 23.
Journal of Materials Science, 27 (1992) 3782-3788.
English translation of Official Letter of Taiwan Patent Office (National Bureau of Standards) in Taiwan Appln. No. 82100814.

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