C - Chemistry – Metallurgy – 08 – J
Patent
C - Chemistry, Metallurgy
08
J
117/241
C08J 5/04 (2006.01) B29C 70/08 (2006.01) B32B 5/10 (2006.01)
Patent
CA 1205700
Abstract: SECONDARY MATRIX REINFORCEMENT USING CARBON MICROFIBERS AND METHOD FOR MAKING CARBON MICROFIBERS A continuous fiber composite having carbon micro- fibers dispersed in the resin filling the interstices between the continuous fibers to enhance the transverse properties of the composite. The carbon microfibers are made by soaking carbon fibers in an intercalating acid solution comprising a mixture of fuming nitric and sulfuric acid to weaken the intercrystallite bonds. Gentle stirring of solution separates the carbon microfibers from the host fibers. The microfibers are then separated from the intercalating acid solution and washed to remove the residual acid.
435320
Kiwak Robert S.
Sorensen Ian W.
Allied Corporation
Macrae & Co.
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