短亚麻纤维/聚乳酸复合材料制备与性能研究  

Study on Preparation and Properties of Short Flax Fiber/PLA Composite

作　　者：刘涛[1] 余雪江[1] 余凤湄[1] 赵秀丽[1] 王建华[1] 

机构地区：[1]中国工程物理研究院化工材研究所,四川绵阳621900

出　　处：《塑料科技》2011年第2期52-56,共5页Plastics Science and Technology

基　　金：中国工程物理研究院科学技术发展基金(2008A0302012)

摘　　要：采用双螺杆挤出机制备出一系列短亚麻纤维/聚乳酸复合材料,通过力学性能测试、SEM和DSC等方法研究了短亚麻纤维用量、偶联剂种类对短亚麻纤维/聚乳酸复合材料力学性能、结晶性能、流变性能和耐热性能的影响。结果表明:短亚麻纤维用量达到4.62%时,亚麻纤维/聚乳酸复合材料力学性能达到最佳;随短亚麻纤维用量的增加亚,麻纤维/聚乳酸复合材料流动性降低而,结晶度和耐热性有所提高。A series of short flax fiber/PLA composites were prepared by twin-screw extruder.The effects of content of short flax fiber and type of coupling agent on mechanical,rheological and crystallization properties were studied respectively by means of mechanical property test,SEM,DSC and so on.The results show that when short flax fiber content is 4.62%,the mechanical property of short flax fiber/PLA composite is the best;with the increase of short flax fiber content,the flowability of short flax fiber/PLA compsite decreases,while the heat resistance and crystallinity increase slightly.

关 键 词：聚乳酸 亚麻纤维 复合材料 力学性能 结晶性能 

分 类 号：TQ327[化学工程—合成树脂塑料工业]