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Study on the Mechanical Properties of Wood-Plastic Composite Based on PP/PE

CAI Pei-xin,Lü Qun,LIANG Meng-jie,ZHANG Qing-feng(College of Material,Chemistry and Chemical Engineering,Hangzhou Normal University,Hangzhou 310036,China)  
Wood-plastic composite(WPC) based on PP/PE were prepared by extrusion with PP and HDPE blends as plastic matrix,EPDM as toughening agents,wood flour as filler.The paper researched on the effects of PP/PE and EPDM content on the mechanical properties of WPC.The results showed that with PP content increased in the plastic matrix,the flexural modulus of WPC increased,but the flexural strength and impact strength were decreased first and then increased.With EPDM content increased in the plastic matrix,the impact strength of WPC increased,the flexural strength and flexural modulus decreased.
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