THREE-DIMENSIONAL WOVEN OR KNITTED FABRIC OR BRAID FOR COMPOSITE MATERIAL AND METHOD FOR PRODUCING THE SAME AND THREE-DIMENSIONAL PREFORM

摘要

PROBLEM TO BE SOLVED: To develop a three-dimensional woven or knitted fabric or braid for composite materials for inexpensively producing a fiber-reinforced composite material having a complex shape having sufficient interlayer strength.;SOLUTION: In the three-dimensional woven or knitted fabric or braid composed of a reinforced fiber, all or a part of a loop yarn exposed on at least either one surface is cut. The three-dimensional preform is obtained by using the three-dimensional woven or knitted fabric or braid. The fiber-reinforced composite material is obtained by impregnating a three-dimensional preform with a resin and curing or solidifying the resin-impregnated preform.;COPYRIGHT: (C)2005,JPO&NCIPI