文献类型：期刊文献

英文题名：Microcellular Foaming of Polypropylene/Clay Nanocomposites with Supercritical Carbon Dioxide

作者：Jiang, Xiu-Lei[1];Bao, Jin-Biao[1];Liu, Tao[1];Zhao, Ling[1];Xu, Zhi-Mei[1];Yuan, Wei-Kang[1]

机构：[1]E China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2009

卷号：45

期号：6

起止页码：515

外文期刊名：JOURNAL OF CELLULAR PLASTICS

收录：;EI(收录号：20094712462101);WOS:【SCI-EXPANDED(收录号:WOS:000271331100002)】；

基金：The authors are grateful to the National Science Foundation of China and PetroChina for the support of a joint project on multiscale methodologies (20490204), the National Science Foundation of China (50703011), Shanghai ShuGuang Project (08SG28), Shanghai RisingStar Program (08QA1402200), Program for Changjiang Scholars and Innovative Research Team in University (IRT0721), and the 111 Project (B08021).

语种：英文

外文关键词：polypropylene; nanocomposites; microcellular; foaming; supercritical

摘要：The solid-state foaming of two series of polypropylene (PP)/clay nanocomposites based on two different types of organoclays were studied. The wide-angle X-ray diffraction results showed that a supercritical carbon dioxide (scCO(2)) saturation process could lead to the further exfoliation of clay when the initial interlayer spacing was larger enough. It was found that the incorporation of clays exerted significant impacts on cell nucleation and growth and the effect of clays was determined by their dispersion state. However, the influence of clay on the foaming of the PP/clay nanocomposites became marginal at a higher saturation pressure and a lower foaming temperature.