PEG、PPG改性PLA材料的性能研究

doi:10.19491/j.issn.1001-9278.2018.03.008

中国塑料 ›› 2018, Vol. 32 ›› Issue (03): 44-50.DOI: 10.19491/j.issn.1001-9278.2018.03.008

PEG、PPG改性PLA材料的性能研究

郭姝,邹涛,赵瑾,王博,陈宇迪

北京市理化分析测试中心

收稿日期:2017-10-23 修回日期:2017-11-15 出版日期:2018-03-26 发布日期:2018-04-26

Study on Properties of Poly(lactic acid)/Polyethylene Glycol or Polypropylene Glycol Blends

Received:2017-10-23 Revised:2017-11-15 Online:2018-03-26 Published:2018-04-26

摘要/Abstract

摘要： 采用熔融共混法用聚乙二醇(PEG)对生物可降解材料聚乳酸(PLA)进行改性，研究了PEG的相对分子质量对共混体系热性能和力学性能的影响，对比了相同相对分子质量的PEG和聚丙二醇(PPG)由分子结构差异对共混体系性能的影响。结果表明，PEG的相对分子质量为2 000时，改性效果最好；相同相对分子质量的PEG改性效果优于PPG。

Abstract: Blends of poly(lactic acid) (PLA) with poly(ethylene glycol) (PEG) and poly(propylene glycol) (PPG) were prepared by melt blending, and effects of PEG molecular weight on thermal and mechanical properties of the blends were investigated. Furthermore, a comparative investigation on the effects of PEG and PPG on the properties of the blends was performed at the same molecular weight but different molecular structures. The results indicated that an optimum modification effect was achieved at the PEG molecular weight of 2 000. PEG exhibited a better modifying effect on PLA than PPG at the same molecule weight.

郭姝邹涛赵瑾王博陈宇迪. PEG、PPG改性PLA材料的性能研究[J]. 中国塑料, 2018, 32(03): 44-50.

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PEG、PPG改性PLA材料的性能研究

Study on Properties of Poly(lactic acid)/Polyethylene Glycol or Polypropylene Glycol Blends

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