Ways to improve technological characteristics of unidirectional composites

摘要

1. A method for producing a composite material impregnated unevenly distributed polymeric binder comprising: a) providing a layer of fibers having an outer top surface and an outer lower surface, the layer of fibers comprises fiber sheets, each comprising a plurality of fibers and a layer of fibers impregnated with a polymer binder material; b) applying a thermoplastic polymer on the outer surface of the upper layer of fibers and / or the outer surface of the lower fiber layer; and c) attaching the thermoplastic polymer layer is deposited on the fibers to this layer, wherein: i) a thermoplastic polymer layer attached to the fibers before the grouting step, of converting the sheet of fibers and polymeric binder in a monolithic composite material; or ii) a thermoplastic polymer layer attached to the fibers when performing steps grouting, ensuring conversion of sheets of fibers and polymeric binder material in monolithic composite material; or iii) a thermoplastic polymer layer attached to the fibers after the step of grouting, ensuring conversion of sheets of fibers and polymeric binder composite material into a monolithic material.2. A method according to claim 1, wherein the layer of fibers comprises a zone of high polymer content and areas with a low content of the polymer, wherein the polymer concentration in areas with high concentration of polymer above the polymer binder material in areas with a low content of the polymer, and the thermoplastic polymer is applied to the outer the surface layer of the fibers with a low content polimera.3. A method according to claim 1, wherein the t