THERMOPLASTIC COMPOSITE FOR IMPACT ENERGY ABSORBING REINFORCING MATERIAL, CAPABLE OF MASS-PRODUCING BY THERMOFORMING PROCESS, HAVING EXCELLENT STRENGTH AND ELECTROMAGNETIC WAVES SHIELDING ABILITY, AND A MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A thermoplastic composite for impact energy absorbing reinforcing material is provided to have excellent coatability and electromagnetic shielding performance, conductivity, and mechanical strength, thereby using for a bumper back beam, a front and module carrier, a reinforcing agent like door side impact bar, etc.;CONSTITUTION: A thermoplastic composite or impact energy absorbing reinforcing material comprises a polycarbonate resin, which contains 0.5-6 weight% of carbon nanotubes and 1-5 weight% of cyclic butylene terephthalate impregnated into a fiber mat. A manufacturing method of the thermoplastic composite comprises: a step of spreading 0.5-6 weight% of carbon nanotube and 1-5 weight% of a polycarbonate resin containing cyclic butylene terephthalate into fiber bat; and a step of impregnating a molten resin into a fiber mat by heat-treating the fiber mat to 250-290 °C.;COPYRIGHT KIPO 2012