Carbon fiber spun yarn and woven fabric thereof

Details Carbon fiber spun yarn and woven fabric thereof Carbon fiber spun yarn and woven fabric thereof

2004-11-30

2009-11-03

Hurley, Shaun R (Department: 3765)

Textiles: spinning, twisting, and twining

Strand structure

Staple fiber blends

Reexamination Certificate

active

07610743

ABSTRACT:
A carbon fiber spun yarn, which is a spun yarn of a carbon fiber that has an average (002)-interlayer spacing of 0.340-0.380 nm as measured by X-ray diffraction method, has a specific gravity of 1.55-1.80 as measured by a density gradient tube method, a hydrogen-to carbon atomic ratio (H/C) as measured by elementary analysis of at most 0.1 and contains 3-30 wt. % of carbon fiber having a fiber length of at least 150 mm, wherein the spun yarn has a weight per 1000 m (tex) of 30-150 g, a number of primary twist of 50-400 turns/m and a tensile strength of at least 0.15 N/tex. The carbon fiber spun yarn may be woven to provide a carbon fiber woven fabric suitable as a gas diffuser (electroconductive substrate) of a solid polymer electrolyte fuel cell.

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