文献类型：期刊文献

英文题名：A Novel Highly Efficient β-Nucleating Agent for Isotactic Polypropylene

作者：Zhao, Shicheng[1];Xu, Na[1];Xin, Zhong[1];Jiang, Changquan[1]

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

年份：2012

卷号：123

期号：1

起止页码：108

外文期刊名：JOURNAL OF APPLIED POLYMER SCIENCE

收录：;EI(收录号：20114114418254);WOS:【SCI-EXPANDED(收录号:WOS:000296437600013)】；

基金：Contract grant sponsor: Program of Shanghai Subject Chief Scientist; contract grant number: 10XD1401500. Contract grant sponsor: National Natural Science Foundation of China; contract grant number: 20876042. Contract grant sponsor: Fundamental Research Funds for the Central Universities.

语种：英文

外文关键词：polypropylene; nucleating agent; crystallization behavior

摘要：A novel highly efficient beta-nucleating agent for isotactic polypropylene (iPP), hexahydrophthalic barium (HHPA-Ba), was found and its effects on the mechanical properties, the beta-phase content, and crystallization behavior of iPP were investigated, respectively. The results show that the beta-phase content of nucleated iPP (k(beta) value) can reach 80.2% with 0.4 wt % HHPA-Ba. The impact strength and crystallization peak temperature of nucleated iPP are greatly increased. Compared with pure iPP, the impact strength of nucleated iPP can increase 2.4 times. Meanwhile, the spherulite size of nucleated iPP is dramatically decreased than that of pure iPP. The Caze method was used to investigate the nonisothermal crystallization kinetics of nucleated iPP and the crystallization active energy was achieved by Kissinger method. (C) 2011 Wiley Periodicals, Inc. J Appl Polym Sci 123: 108-117, 2012