METHOD FOR PREPARING THE MOLDED PARTS OF HEAT RESISTANT AND THERMALLY CONDUCTIVE POLYMER COMPOSITIONS AND THE MOLDED PARTS OF HEAT RESISTANT AND THERMALLY CONDUCTIVE POLYMER COMPOSITIONS PREPARED BY THE SAME METHOD

摘要

PURPOSE: A method for manufacturing molded products of polymer compositions having thermal conductivity and thermal resistance and a molded product of polymer compositions having the thermal conductivity and thermal resistance manufactured thereby are provided to include different kinds of thermal conductivity fillers having different shapes so that the thermal conductivity fillers have the directionality and to have excellent thermal conductivity and mechanical strength because the contact rate between the thermal conductivity fillers is excellent. CONSTITUTION: A method for manufacturing molded products of polymer compositions having thermal conductivity and thermal resistance comprises the following steps: melting thermal resistant polymer resin and a first thermal conductivity filler in an extruder and extruding them; adding a second thermal conductivity filler in a mixture extruded in an injection molding machine, melting them, and injection-molding them. [Reference numerals] (AA,DD,HH) Normal direction; (BB,FF,GG) Flow direction; (CC,EE,II) Transversal direction