The invention relates to a waste plastic recycling method, especially for polyurethane foam plastics. Waste rigid polyurethane foam is subjected to decrosslinking treatment, then mixed with nylon materials, and finally extruded or compression-molded into plates. This method improves the mechanical properties of nylon and realizes the reuse of waste resources. The production of composite plates from waste rigid polyurethane foam and nylon features abundant raw materials, low cost and simple processes, which reduces environmental pollution and creates additional economic benefits.

Area Code: CN

Application Number: CN201110386757.5