METHOD FOR MATERIAL SEPARATION OF EVA AND PET MIXTURE PLASTIC WASTE

摘要

PURPOSE: A method for separating materials of a mixed waste plastic of EVA and PET is provided to obtain PET particles having excellent recovery factor by separating EVA particles and the PET particles through electric field after electrically charging the EVA particle and the PET particle. CONSTITUTION: A method for separating materials of a mixed waste plastic of EVA and PET comprises the following steps: smashing a mixed plastic waste of EVA and PET into EVA particles and PET particles; making the crushed mixed particles have electric charge by putting the crushed particle in a pipe line(120) and a cyclone charger(130); separating the mixed particles into EVA particles and PET particles by passing the mixed particles through electric field of an anode plate(160) and a cathode plate(150); and controlling relative humidity of the pipe line and the cyclone charger, air speed, and intensity of voltage.