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Determining Binder and Fiber Composition of Carbon Fiber FabricsCorporate Research Center, International Paper Company, Tuxedo Park, New York 10987, U.S.A.
Corporate Research Center, International Paper Company, Tuxedo Park, New York 10987, U.S.A.
Corporate Research Center, International Paper Company, Tuxedo Park, New York 10987, U.S.A. Methods are described for determining the binder and fiber contents of nonwoven fabrics bonded with a polyester binder and containing either carbon fibers or a blend of carbon and polyester fibers. The amounts of fiber and binder in a nonwoven made with only carbon fibers are determined by weighing the fibers after removing the binder with concentrated sulfuric acid. Analysis of a nonwoven containing a blend of carbon and polyester fibers is accomplished by removing the binder with 70% sulfuric acid and weighing the total fibers. Then the fibers are treated with concentrated sulfuric acid and the carbon fibers are weighed.
Textile Research Journal, Vol. 56, No. 8,
516-519 (1986) |
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