聚合物／POSS纳米复合材料热性能增强机理研究进展  

The Advance in Thermal Property Enhancement Mechanism of Polymer/POSS Nanocomposites

作　　者：徐洪耀[1,2] 贾勇[2] 冯燕[2] 

机构地区：[1]东华大学材料科学与工程学院,纤维材料改性国家重点实验室,上海201620 [2]安徽大学化学化工学院,安徽合肥230039

出　　处：《高分子材料科学与工程》2008年第12期15-19,共5页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(90606011,50472038);教育部“新世纪优秀人才支持计划”(NCET-04-0588)

摘　　要：笼型倍半硅氧烷(POSS)是由Si-O-Si键组成的无机核、顶点处连接有机取代基团的大小0.5nm^3 nm结构规整的新型纳米分子,具有高的热稳定性。文中就聚合物/POSS纳米复合材料热性能的影响因素进行综述,讨论了各种热性能增强机理的研究进展。Polyhedral oligosilsesquioixanes （POSS） consists of a new well-defined nanoscale molecule （0.53 nm in size） with an inorganic silica-like core （（SiO1.5）n） surrounded by eight organic comer group （functional or inert） which possess high thermal stability. Polymer/POSS nanocomposites have attracted great interest of many researchers recently due to their excellent thermal properties relative to polymeric materials. In this paper, the influence factors such as dipolar-dipolar effect, hydrogen interaction, nanometer enhancement effect, dilute and free volume effect, on the thermal property of polymer/ POSS nanocomposites were summarized and different thermal property enhancement mechanisms were discussed.

关 键 词：笼型倍半硅氧烷 纳米复合材料 热性能 机理 

分 类 号：TQ324.21[化学工程—合成树脂塑料工业]