PREPREG, COMPOSITE MOLDED BODY, AND METHOD OF MANUFACTURE OF THE COMPOSITE MOLDED BODY

摘要

This invention relates to new composite materials, i.e., prepreg and composite molding, comprising an organic polymer not substantially having any melting point and produced by laminating a film (1) having an elastic modulus of as high as at least 700 kg/mm<2> and a tensile strength of as high as at least 35 kg/mm<2> and a resin layer (2) and/or a fiber-reinforced resin layer (3), and to a process for producing such composite materials. The composite molding comprising the film (1) and the resin layer (2) of the invention is isotropic and has excellent strength, good flexibility and high toughness, while the composite molding comprising the film (1) and the fiber-reinforced resin layer (3) has a remarkably high impact resistance which has not been realized by the prior art moldings and the strength and modulus superior to those of the prior art moldings. By virtue of the lightweightness and corrosion resistance as well as the above-mentioned excellent properties, these moldings are suitable for use in the fields of aeronautics and space industries, sports and leisure goods, and so forth.