聚乳酸/竹粉复合材料的改性及性能研究  

Study on Modification and Properties of Polylactic Acid/Bamboo Flour Composites

作　　者：宋鑫宇 翁云宣[1] 张彩丽 黄志刚[1] SONG Xinyu;WENG Yunxuan;ZHANG Caili;HUANG Zhigang(Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics,Beijing Technology&Business University,Beijing 100048,China)

机构地区：[1]北京工商大学,塑料卫生与安全质量评价技术北京市重点实验室,北京100048

出　　处：《中国塑料》2020年第7期21-29,共9页China Plastics

摘　　要：采用甲基丙烯酸缩水甘油酯接枝乙烯辛烯共聚物(POE-GMA)作为相容剂,TPW604作为润滑剂,利用XSS-300转矩流变仪熔融制备聚乳酸(PLA)/竹粉(BF)复合材料。通过热失重、拉伸、冲击、扫描电子显微镜、旋转流变等方法研究BF、POE-GMA、TPW604添加量对PLA/BF复合材料性能的影响。结果表明,当BF添加量为35%、POEGMA添加量为10%、TPW604添加量为1%时,复合材料的相容性和流动性均显著提升,复合材料的力学性能达到最优。In this work,polylactic acid(PLA)/bamboo flour(BF)composites were prepared by a XSS-300 torque rheometer using ethylene octene copolymer grafted with glycidyl methacrylate(POE-g-GMA)as a compatibilizer and TPW604 as a lubricant.The effects of addition amounts of BF,POE-GMA and TPW604 on the tensile and impact properties,thermal stability,morphology and rheological properties of PLA/BF composites were investigated in details.The results indicated that the composites exhibited the optimum mechanical properties at the BF content of 35 phr,the POE-g-GMA content of 10 phr,and the TPW604 content of 1 phr,and meanwhile their compatibility and fluidity of were also improved significantly.

关 键 词：聚乳酸 竹粉 相容剂 润滑剂 改性 

分 类 号：TQ321[化学工程—合成树脂塑料工业]