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