A POLYMER-FIBRE PREPREG, A METHOD FOR THE PREPARATION THEREOF AS WELL AS THE USE OF SAID PREPREG

摘要

The invention relates to a method for the preparation of the fibreproduct pre-impregnated with a polymer (prepreg) wherein the methodcomprises: a) coating the fibres with a powder comprising at leastone polymer and optionally an agent having the ability to initiate thepolymerization reaction of said polymer, b) adding to the compositionobtained in step a) a solvent possessing the ability to dissolve said polymerbut lacking the ability to initiate the polymerization reaction of saidpolymer,and c) evaporating the solvent. Alternatively, the polymer (optionallyincluding the initiating agent) can first be dissolved in the solvent afterwhichthe fibres are contacted with the solution thus obtained and the solvent isevaporated. The surface of the fibres is preferably treated so as tofacilitatethe bonding of the polymer to the fibres, whereafter the surface treatedfibresare coated with the polymer powder. The invention relates further to a novelprepreg, a method for the manufacture of fibre reinforced composite basedon the use of said prepreg, the novel composites and their use.