ECO-FRIENDLY WOOD PLASTIC COMPOSITE PELLET WITH IMPROVED BIODEGRADABILITY AND METHOD FOR MANUFACTURING SAME

摘要

According to the present invention, a method for manufacturing a eco-friendly wood plastic composite pellet with improved biodegradability comprises: (a) a mixing step of mixing, with an additive by stirring in a heat stirrer under a temperature of 90-110°C at a predetermined rotary velocity, 50-60 wt% of wood powder which has a particle size of 40-120 mesh and moisture content of 2-6%; 20-30 wt% of resin which consists of polypropylene and high-density polyethylene; 10-20 wt% of biodegradable mixed powder which consists of rice bran powder separated during the process of milling brown rice into rice and of fermentation accelerator prepared by adding quicklime to iron sulfate and heating the resultant material; and 3-10 wt% of calcium carbonate; and (b) a pellet extrusion step of injecting the mixture into a pellet extruder and extruding the mixture through cutting screws of the pellet extruder.;COPYRIGHT KIPO 2015