Preparation and Properties of Biodegradable Wood Plastic Composites of PLA/PBS/Straw Flour
PLA,PBS,straw flour,coupling agent (maleic anhydride grafted poly lactic acid (MAPLA)),SBS,plasticizer(DOP),stearic acid zinc and lubricant were compounded into the high speed mixer,and test specimens were molded by the injection moulding machine.By single factor and orthogonal experiment,changing injection temperature,injection pressure and injection speed,the influences of the three factors on density and the interface conpatibility and the mechanical properties of biodegradable wood plastic composite material were investigated.The optimal injection molding process of straw flour and PLA composites was obtained.The experimental results showed when the injection temperature was 178 ℃,the injection pressure was 5 MPa,and the injection speed was 45％,the density was relatively minimal,and the surface quality and mechanical properties were relatively best.
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万方数据
维普
