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EVAC对PE基木塑微发泡复合材料性能影响的研究 被引量:5

INFLUENCE OF EVAC ON PROPERTIES OF PE BASED WOOD PLASTIC MICRO-FOAMED COMPOSITE
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摘要 使用乙烯-乙酸乙烯酯塑料(EVAC)作为改性剂,通过锥形双螺杆成型机制备了聚乙烯(PE)基木塑微发泡复合材料。研究了EVAC用量对复合材料力学性能的影响,并且运用扫描电子显微镜观察了复合材料断面的微观形貌。结果表明,PE基木塑微发泡复合材料的拉伸强度、弯曲强度、冲击强度均随EVAC用量的增加而增大,EVAC可以提高PE/木粉界面之间的相容性,其最佳用量为木粉含量的12.5%。探讨了EVAC在PE基木塑微发泡复合材料微发泡过程中所起的作用。 PE based wood plastic micro-foamed composite was prepared with EVAC as modifier by a conical twin screw extruder. The effect of different EVAC content on the mechanical properties were studied, combined wtth SEM observation of cross-section morphology of composite materials. The results showed that the tensile strength, bending strength and impact strength of the PE based wood plastic micro-foamed composite increased with the increase of EVAC content. EVAC can improve the interfacial compatibilization between the wood flour and polymer, the optimum dosage of EVAC was 12.5% of wood flour content. In addition, this paper discussed the role of EVAC in the micro-foamed process of PE based wood plastic composite.
出处 《工程塑料应用》 CAS CSCD 北大核心 2011年第3期19-22,共4页 Engineering Plastics Application
关键词 乙烯-乙酸乙烯酯塑料聚乙烯木塑复合材料微发泡 EVAC, PE, wood plastic composite, micro-foamed
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