Composite of small carbon fibers and thermoplastics and method f

Details Composite of small carbon fibers and thermoplastics and method f Composite of small carbon fibers and thermoplastics and method f

1993-07-09

1995-07-18

Dawson, Robert A.

Plastic and nonmetallic article shaping or treating: processes

Forming articles by uniting randomly associated particles

Agitating to form larger particles

264 291, 264 292, 264109, 264112, 264113, 264115, 2642107, 264DIG57, 428402, 428409, B29B 908, B29B 912, B29B 914

Patent

active

054339065

ABSTRACT:
A method is provided for forming a composite material and article using nanometer-size vapor grown carbon fibers. The preferred carbon fibers are characterized by diameters of substantially less than about one micrometer, and more typically less than about 0.2 micrometers, and are of the type formed by a continuous gas phase reaction. The polymeric matrix of the composite material is formed from a thermoplastic resin having a surface tension which is sufficiently low, so as to promote wetting of the surfaces of the nanometer-size carbon fibers. The thermoplastic resin is mixed with the carbon fibers and a solvent so as to granularize the mixture and thereby facilitate subsequent handling and mixing of the carbon fibers. Final mixing occurs at temperatures near the melting point of the thermoplastic resin and for a duration which is sufficient to ensure that the carbon fibers are adequately wetted by the thermoplastic resin, so as to provide adhesion between the fibers and the thermoplastic. The composite material is characterized by improved strength and stiffness.

REFERENCES:
patent: 3278661 (1966-10-01), Beck
patent: 4500603 (1985-02-01), Freundlich
patent: 4600572 (1986-07-01), Hiramatsu et al.
patent: 4663230 (1987-05-01), Tennent
patent: 4774304 (1988-09-01), Kuhls et al.
patent: 5024818 (1991-06-01), Tibbetts et al.
patent: 5055371 (1991-10-01), Lee et al.
patent: 5116561 (1992-05-01), Kagawa
patent: 5185204 (1993-02-01), Shimizu et al.
Handbook of Fillers and Reinforcements for Plastics (no date indicated), Edited by Katz et al., Van Nostrand Reinhold Co., pp. 562-582.
Dynes et al., J. Adhesion, 1974, vol. 6, pp. 195-206.

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