文献类型：期刊文献

英文题名：Physical and degradation properties of binary or ternary blends composed of poly (lactic acid), thermoplastic starch and GMA grafted POE

作者：Shi, Qingfeng[1];Chen, Cong[1];Gao, Lei[1];Jiao, Lei[1];Xu, Haiyan[1];Guo, Weihong[1]

机构：[1]E China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Key Lab Adv Polymer Mat,Minist Educ, Polymer Alloy Lab,Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China

年份：2011

卷号：96

期号：1

起止页码：175

外文期刊名：POLYMER DEGRADATION AND STABILITY

收录：;EI(收录号：20105113508414);WOS:【SCI-EXPANDED(收录号:WOS:000286541600021)】；

基金：The authors sincerely acknowledge the National Key Technology R & D Program of China (2008BAC46B10), Shanghai Leading Academic Discipline Project (B502) and Shanghai Key Laboratory Project (08DZ2230500).

语种：英文

外文关键词：Poly (lactic acid); Starch; GMA (glycidyl methacrylate); Degradation

摘要：Binary and ternary blends composed of poly (lactic acid) (PLA), thermoplastic starch (TPS) and glycidyl methacrylate grafted poly (ethylene octane) (GPOE) were prepared using Haake Mixer. The mechanical morphology, thermal properties, water absorption, and degradation properties of the blends were also investigated. The elongation at break and impact strength of the ternary blends were greatly increased by the filling of GPOE. Compared to non-GPOE binary blends, the morphology of ternary blends with GPOE indicated that starch granules melted and there was good compatibility between PLA matrix and TPS. The mechanism and schematic diagram of the reactions in PLA, TPS, and GPOE were proposed and proved by testing and observing the morphology. Moreover, the biodegradation and thermal decomposition were studied through compost testing and thermal gravimetric analysis, respectively. Biodegradation results indicated that the blends have the excellent biodegrade ability. (C) 2010 Elsevier Ltd. All rights reserved.