碳酸钙对聚乳酸/酯化纤维素复合材料性能的影响  

Effect of CaCO_3 on Properties of PLA/Esterified Cellulose Composites

作　　者：邓长勇[1,2] 张秀成[1,2] 

机构地区：[1]东北林业大学理学院化学化工系,黑龙江哈尔滨150040 [2]黑龙江省阻燃材料分子设计与制备重点实验室,黑龙江哈尔滨150040

出　　处：《塑料科技》2009年第4期59-63,共5页Plastics Science and Technology

基　　金：黑龙江省自然科学基金(B200714)资助项目

摘　　要：采用熔融共混工艺制备了聚乳酸(PLA)/酯化纤维素/CaCO3复合材料,通过力学性能测试、热重分析、凝胶渗透色谱和红外光谱分析,研究了CaCO3对复合材料力学性能和热稳定性的影响。结果表明:CaCO3能够与酯化纤维素相互作用,并在一定程度上改善复合材料的力学性能,提高复合材料的热稳定性,减缓PLA的热降解。PLA/esterified cellulose/CaCO3 composites were prepared by melt blending technology. The effect of CaCO3 on mechanical properties and thermal stability of the composite was investigated by means of mechanical properties testing, TGA, GPC, and FTIR. The results indicate that the interaction between CaCO3 and esterified cellulose improves the mechanical properties and thermal stability of the composites, and is helpful to prevent the thermal degradation of PLA.

关 键 词：聚乳酸 酯化纤维素 碳酸钙 复合材料 

分 类 号：TQ352[化学工程]