原位法制备聚乳酸/无机纳米复合材料研究进展  

Research Progress in PLA/Inorganic Nonacomposite Prepared by In-situ Technology

作　　者：郑林萍[1,2] 李丹[1] 张予东[1] 常海波[1] 张普玉[1] 

机构地区：[1]河南大学化学化工学院精细化学与工程研究所,河南开封475004 [2]河南大学药学院,河南开封475004

出　　处：《中国塑料》2012年第11期8-13,共6页China Plastics

摘　　要：综述了国内外原位法制备聚乳酸(PLA)/无机纳米复合材料的研究进展,主要包括不同维数的无机纳米填料与PLA的原位复合。着重阐述了原位熔融缩聚法和原位开环聚合法,同时简要介绍了原位沉析法。原位法使无机纳米填料能更好地分散于PLA基体中,用量少,不需要加入其他添加剂也能避免团聚,同时避免了再加工过程中引起的热降解,且制备工艺简单。由于PLA和无机纳米填料界面间的化学键合作用,使得复合材料的热稳定性、玻璃化转变温度(Tg)、力学性能、降解性能和光学性能等得到了改善,从而拓宽了PLA的应用范围。The research progress in nanocomposites of poly（lactic acid）and inorganic nano-fillers was reviewed in this paper, with technologies of in-situ polymerization and in-situ precipitation being emphasized. These in-situ methods overcame the problem of aggregation of the nano- particles. The inorganic nano-filler was finely dispersed in and strongly interacted with the polymer matrix so that improved the thermo-stability, glass transition, mechanical properties, optical performance of the composites. And it avoided thermal degradation by a fused. The application of the poly（lactic acid） based the composites was enlarged.

关 键 词：聚乳酸 无机纳米填料 纳米复合材料 原位法 

分 类 号：TB383.1[一般工业技术—材料科学与工程]