文献类型：期刊文献

英文题名：Effect of octa(epoxycyclohexyl) POSS on thermal, rheology property, and foaming behavior of PLA composites

作者：Liu Wei He Shicheng Zhou Hongfu

第一作者：刘伟

通信作者：Liu, W[1];Zhou, HF[2]|[14440e1cfacde39bad4ab]刘伟;

机构：[1]Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China;[2]Beijing Technol & Business Univ, Key Lab Proc & Qual Evaluat Technol Green Plast, China Natl Light Ind Council, Beijing 100048, Peoples R China

第一机构：贵州理工学院材料与冶金工程学院

通信机构：corresponding author), Guizhou Inst Technol, Sch Mat & Met Engn, Guiyang 550003, Guizhou, Peoples R China;corresponding author), Beijing Technol & Business Univ, Key Lab Proc & Qual Evaluat Technol Green Plast, China Natl Light Ind Council, Beijing 100048, Peoples R China.|贵州理工学院材料与冶金工程学院;贵州理工学院;

年份：2018

卷号：135

期号：25

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20181104894728);Scopus(收录号：2-s2.0-85043368043);WOS:【SCI-EXPANDED(收录号:WOS:000428701200034)】；

基金：This work was supported by National Natural Science Foundation of China (grant number 51703039), and Key laboratory of Processing and Quality Evaluation Technology of Green Plastics of China National Light Industry council open funding (grant number BS201710).

语种：英文

外文关键词：foams; nanostructured polymers; rheology

摘要：Foams of poly(lactic acid) (PLA)/octa(epoxycyclohexyl) polyhedral oligomeric silsesquioxanes (ePOSS) composite were prepared by melt-mixing and solid-state foaming methods. A systematic and accurate method was applied to evaluate the effects of epoxy-based POSS on the structure of dispersion, thermal behavior, and rheological properties of PLA composites. The application of secondary electron-electron back-scattered diffraction technique was used to observe the cellular micromorphology and micro-phase dispersion in composite foams, simultaneously. The results indicated that secondary dispersion of POSS aggregates occurred in foaming process. The enhanced melt elasticity, dispersity of POSS, and crystallization morphology of PLA/POSS composite had a significant effect on the controlling foaming behavior. Thus, a homogeneous and finer cellular morphology of PLA/POSS composite foam with high expansion ratio was obtained with a proper content of POSS in the composites. (c) 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46399.