The Thermal and Mechanical Properties of Poly(lactic acid)/Hyperbranched Poly(ester amide) Blends

摘要：

Melt blending poly(lactic acid) (PLA) and biodegradable hyperbranched poly(ester amide) (HBP) has been performed in an effort to toughen the PLA without compromising its biodegradability and biocompatibility. Thermal properties and mechanical properties of blends with different HBP content were investigated. The addition of HBP not only reduced the crystallinity from 30.99％ to 18.58％, but also toughened PLA. With an increase in HBP content from 2.5％ to 10％, the blend showed a slightly increased tensile strength and significantly increased elongation at break. The reasonable toughening mechanism was given too.

关键词： ploly(lactic acid) hyperbranched poly(ester amide) blend, toughening

作者: Wei Zhang Yu Zhang Yanmo Chen

作者单位: State Key Laboratory for Modification of Chemical Fiber and Polymeric Materials,College of Material Science and Engineering, Donghua University, Shanghai-201620,P.R.China

会议类型: 国际会议

会议名称: International Conference on Fibrous Materials 2009,the Fiber Society 2009 Spring Conference(纤维材料国际研讨会暨纤维协会2009年春季会议)

会议地点: 上海

会议语种:英文

页码: 923-926

在线出版日期: 2009-05-27（万方平台首次上网日期，不代表论文的发表时间）