Wood plastic composite made of waste plastics and a method of manufacturing the same

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Disclosed are a synthetic wood using waste plastic and a manufacturing method thereof. The present invention comprises : a primary drying step (S100) of inserting fibers into a mixer, preheated at 140-160° C, and then, drying the fibers up to 2-4% of moisture content through a dehumidifier; a smashing step (S200) of smashing the fibers through a smasher at 20~120 mesh; a primary mixture manufacturing step (S300) of manufacturing a primary mixture by mixing 40-60 parts by weight of fibers, 2-4 parts by weight of fly ash, 1-3 parts by weight of rare earth soil, 1-3 parts by weight of sericite, and 1-4 parts by weight of red clay based on 100 parts by weight of a final mixture; a secondary drying step (S400) of drying the primary mixture up to 2-4% of moisture content; a final mixture manufacturing step (S500) of manufacturing the final mixture by mixing 30-50 parts by weight of polymer resin and 0-15 parts by weight of bio-degradable polymer with the primary mixture based on 100 parts by weight of the final mixture; and a tertiary drying step (S600) of drying the final mixture up to 2-4% of moisture content. As such, the present invention is capable of reducing bleeding, improving water-tightness, and easing extrusion or injection, thereby being used for various purposes such as interior materials, exterior materials, doors, sinks, and guardrails.(S100) Primary drying step(S200) Grinding step(S300) Primary mixture manufacturing step(S400) Secondary drying step(S500) Final mixture manufacturing step(S600) Tertiary drying stepCOPYRIGHT KIPO 2017