CARBON-FIBER PREFORM AND CARBON-FIBER-REINFORCED PLASTIC
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United States of America Patent
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Issued Date -
Nov 6, 2014
app pub date -
Oct 1, 2012
filing date -
Nov 21, 2011
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Abandoned
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Abstract
According to the present invention, a carbon-fiber preform for a carbon-fiber-reinforced plastic is formed from mutually intersecting warp and weft each of which including a carbon-fiber multifilament yarn. At least one of layer surfaces has fluff formed by cutting some of filaments of the carbon-fiber multifilament yarn, and a total fluff length of fluff formed on the warp and a total fluff length of fluff formed on the weft are not equal. The present invention provides a CFRP in which the delamination strength (interlaminar shear strength) is improved and that has a high strength.
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