HGB/PLA复合材料的制备及性能研究  

Investigation on the Fabrication and Properties of HGB/PLA Composites

作　　者：杨继年[1,2] 许爱琴[3] 丁国新[1] 

机构地区：[1]安徽理工大学材料科学与工程学院,安徽淮南232001 [2]安徽省现代矿业工程重点实验室,安徽淮南232001 [3]北京美盛沃利工程技术有限公司南京分公司,南京210019

出　　处：《材料工程》2012年第10期44-47,共4页Journal of Materials Engineering

基　　金：安徽理工大学青年教师科学研究基金资助(QN201116);安徽理工大学博士启动基金(2010-11060)

摘　　要：采用熔融共混与模压成型工艺制备了HGB填充改性PLA复合材料,考察了HGB的含量对复合材料的微观形貌、力学性能和熔体流动速率的影响。结果表明,经过硅烷偶联剂表面包覆改性的HGB在基体中分散均匀,且与PLA间具有较好的界面结合;随着HGB含量的增加,HGB/PLA复合材料的比抗拉性强度和断裂伸长率先增大而后降低,而比弹性模量持续上升;HGB的引入总体上降低了共混体系的比冲击强度,但却显著提高了其熔体流动速率。The composites of poly （lactic acid） （PLA） filled with hollow glass beads （Hollow Glass Beads,HGB） were prepared by using molten blending and compression molding. The effects of HGB contents on the morphologies, mechanical properties and melt flow rate of HGB/PLA composites were investigated. The results show that well dispersed HGB in matrix and improved interfacial adhe sion were observed between the PLA and HGB coated by silane coupling agent. With the increment of HGB, the specific tensile strength and elongation at break of HGB/PLA composites were increased first and then decreased however, the specific elastic modulus exhibited the trend of continuous in crease. The existence of HGB led to negative influences on the specific impact toughness, but brought on a remarkable positive impact on the melt flow rate of HGB/PLA composites.

关 键 词：聚乳酸 中空玻璃微珠 复合材料 力学性能 熔体流动速率 

分 类 号：TQ323.1[化学工程—合成树脂塑料工业]