氧化锌/改性聚乳酸复合材料的制备与性能研究  

Preparation and performance study of ZnO/modified PLA composite

作　　者：何静[1] 

机构地区：[1]陕西学前师范学院化学与化工系,西安710100

出　　处：《化工新型材料》2017年第1期197-198,共2页New Chemical Materials

基　　金：陕西省自然科学基金(2011JM2005)

摘　　要：聚乳酸与二聚水杨酸内酯发生接枝反应生成改性聚乳酸,纳米级氧化锌、改性聚乳酸、少量碳纳米纤维以一定配比,采用接枝共聚—共混法制得纳米级氧化锌/改性聚乳酸复合材料。对复合材料进行表征和测试,结果表明:制得的纳米级氧化锌/改性聚乳酸复合材料分子量分布均匀,性能优良;拉伸强度比未改性聚乳酸明显提高,拉伸强度最高可达到36.64MPa;吸附时间在8h时,吸附率最大达到22%。纳米级氧化锌/改性聚乳酸复合材料在医疗领域具有较好的应用前景。Nano ZnO/modified polylactic acid（PLA）composites were prepared by graft copolymerization-blend process,used a certain ratio of nano ZnO,carbon nanofiber（CNF）and PLA which was modified by disalicylide.The composites was characterized by IR and GPC.Its performances including tensile strength,thermal stability,hydrophilic property and degradability were tested.The results showed the composites had stability of structure,biocompatibility and anti-degradability.The potential medical application of composites as organic tissue would be very good.

关 键 词：氧化锌 改性聚乳酸 复合材料 

分 类 号：TB332[一般工业技术—材料科学与工程]