中山大学学报（自然科学版）2009，Vol.48Issue(z2)：17-19,3.
聚甲基乙撑碳酸酯/淀粉复合材料的形貌、机械性能和热性能研究
Mechanical Properties, Morphology, and Thermal Behavior of Completely Biodegradable Poly(propylene carbonate)/Starch Composites
摘要
Abstract
Completely biodegradable composites of poly (propylene carbonate) (PPC) reinforced with unmodified corn starch were prepared by solution casting method. The effects of reinforcement on the morphology, static and dynamic mechanical properties, as well as thermal properties of PPC/starch composites were investigated. Compared with pure PPC resin, the introduction of starch improved the stiffness of the composites significantly, and enhanced the tensile strength to some extent when the starch content was less than 35% (wB). Scanning electron microscopic (SEM) examination revealed the good intedacial adhesion between the fillers and PPC matrix. Gel permeation chromatography (GPC) results showed that the molecular weights of PPC matrices in composite increased compared with that of pure PPC. Moreover, experimental results indicated that the starch addition leaded to a significant improvement in the ther-mal stability of the composites.关键词
复合材料/聚碳酸酯/生物降解塑料/形貌Key words
composites/polycarbonate/biodegradable polymer/morphology分类
化学化工引用本文复制引用
杜风光,葛祥才,肖敏,王拴紧,孟跃中..聚甲基乙撑碳酸酯/淀粉复合材料的形貌、机械性能和热性能研究[J].中山大学学报（自然科学版）,2009,48(z2):17-19,3.基金项目
广东省重大专项项目基金资助(2008A080800024) （2008A080800024）
