化工进展

• 材料科学与技术 • 上一篇    下一篇

聚乳酸增韧改性研究进展

肖伟娜1,黄 雪2,冯光炷3,尹国强3,崔英德3   

  1. (1河南工业大学化学化工学院,河南 郑州 450001;2仲恺农业工程学院研究生处,广东 广州 510225;3仲恺农业工程学院绿色化工研究所,广东 广州 510225)
  • 出版日期:2011-03-05 发布日期:2011-03-05

Research progress of toughening modification of polylactic acid

XIAO Weina1,HUANG Xue2,FENG Guangzhu3,YIN Guoqiang3,CUI Yingde3   

  1. (1 School of Chemistry and Chemical Engineering,Henan University of Technology,Zhengzhou 450001,Henan,China;2 Graduate School,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,Guangdong,China;3 Institute of Green Chemical Engineering,Zhongkai University of Agriculture and Engineering,Guangzhou 510225,Guangdong,China)
  • Online:2011-03-05 Published:2011-03-05

摘要:

聚乳酸因具有良好生物相容性、生物降解性、生物可吸收性以及优良的力学性能,在农业、食品包装、医疗卫生等领域得到了广泛应用,但因其玻璃化转变温度较高、性脆、柔韧性差,需通过增韧改性以提高其加工和应用性能。本文综述了聚乳酸通过共聚、交联、共混等改性方法增加柔韧性的最新研究进展。

Abstract:

Polylactic acidPLAis widely used in agriculturepackagingmedicine and health care because it is a biocompatiblebiodegradable and bioabsorbable polymer and has fine mechanical property. But it is hard and brittle and has poor pliability because it has a high glass transition temperature. Thusit has to be modified to enhance its pliability to improve handling and application. In this paperthe recent research progress of toughening modification of PLA via copolymerizationcross-linkingand blending is reviewed.

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