THERMOPLASTIC COMPOSITE PLATE MATERIAL AND PRODUCTS MOLDED FROM THE SAME

摘要

A thermoplastic composite plate material (4) having a quasi isotropy comprises a thermoplastic resin having a melt viscosity of 1,000-15,000 poise and strip pieces (1) each constructed of unidirectionally orientated reinforcing fibers and each having the ratio of the width to the length thereof within specific ranges. The strip pieces (1) are randomly distributed in the plane parallel to a surface of the composite plate material (4). Since the composite plate material (4) has good quasi-isotropic and high mechanical properties such as flexural strength, flexural modulus and impact strength, a composite product having good quasi-isotropic and high mechanical properties can be obtained by using the composite plate materials (4). Moreover, since the composite plate material (4) can be easily fitted into a mould, a composite product having a complicated shape can be easily moulded.