Method of producing graphite fiber-reinforced fluororesin compos

Details Method of producing graphite fiber-reinforced fluororesin compos Method of producing graphite fiber-reinforced fluororesin compos

1995-12-29

1998-01-06

Vargot, Mathieu O.

Plastic and nonmetallic article shaping or treating: processes

Direct application of electrical or wave energy to work

Plasma

264 292, 264122, 264127, 264235, 264349, C08L 2712, C08K 706

Patent

active

057051208

ABSTRACT:
The graphite fiber-reinforced fluororesin composite including 99 to 40 parts by weight of a fluororesin, e.g. polytetrafluoroethylene, and 1 to 60 parts by weight of a graphite fiber. The graphite fiber has a specific surface area of 0.6 to 25 m.sup.2 /g and, as determined by X-ray photoelectron spectroscopic analysis, (1) a surface atomic oxygen/atomic carbon ratio of 0.10 to 0.20, (2) a surface atomic halogen/atomic carbon ratio of 0.05 to 1.8 or (3) a surface atomic oxygen/atomic carbon ratio of 0.10 to 0.20 and a surface atomic halogen/atomic carbon ratio of 0.05 to 1.8. Such fiber may, for example, be obtained by subjecting a graphite fiber to oxidizing treatment, halogenating treatment, or oxidizing and halogenating treatments. The graphite fiber imparts high mechanical strength characteristics and wear resistance to the composite.

REFERENCES:
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patent: 4209480 (1980-06-01), Homsy
patent: 4333977 (1982-06-01), Abrahams et al.
patent: 4342679 (1982-08-01), Abrahams et al.
patent: 4422992 (1983-12-01), Michel
patent: 5401574 (1995-03-01), Masutani et al.

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