中国塑料 ›› 2020, Vol. 34 ›› Issue (7): 21-29.DOI: 10.19491/j.issn.1001-9278.2020.07.004

• 材料与性能 • 上一篇    下一篇

聚乳酸/竹粉复合材料的改性及性能研究

宋鑫宇, 翁云宣, 张彩丽, 黄志刚   

  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
  • 收稿日期:2019-10-11 出版日期:2020-07-26 发布日期:2020-07-26

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

Xinyu SONG, Yunxuan WENG, Caili ZHANG, Zhigang HUANG   

  1. Beijing Key Laboratory of Quality Evaluation Technology for Hygiene and Safety of Plastics, Beijing Technology & Business University, Beijing 100048, China
  • Received:2019-10-11 Online:2020-07-26 Published:2020-07-26
  • Contact: Yunxuan WENG

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 %、POE?GMA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。

关键词: 聚乳酸, 竹粉, 相容剂, 润滑剂, 改性

Abstract:

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.

Key words: polylactic acid, bamboo flour, compatibilizer, lubricant, modification

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