Polymeric mouldings reinforced with tows of fibres

摘要

An electrically conductive product of settable plastic material reinforced with non-conductive fibers is formed by drawing tows of non-conductive fibers through a bath of resin containing conductive fibers. Use of conductive fibers having a mean aspect ratio exceeding 100 permits the weight of conductive fibers to be under 2 %. Expulsion of resin during molding of a settable resin reinforced with fibers is prevented by pinching of the tows of fibers at least at one end of a die. This permits higher pressures to be used during molding.