文献类型：期刊文献

英文题名：Structural Relationships between Zinc Hexahydrophthalate and the β Phase of Isotactic Polypropylene

作者：Sun, Yue[1,2];Zhao, Shicheng[1,2];Zhang, Xian[1,2];Tong, Chuangchuang[1,2];Qin, Wei[1,2];Xin, Zhong[1,2]

机构：[1]East China Univ Sci & Technol, Sch Chem Engn, Shanghai Key Lab Multiphase Mat Chem Engn, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, Sch Chem Engn, State Key Lab Chem Engn, Shanghai 200237, Peoples R China

年份：2020

卷号：59

期号：41

起止页码：18529

外文期刊名：INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH

收录：;EI(收录号：20204709498588);WOS:【SCI-EXPANDED(收录号:WOS:000614623800013)】；

基金：This work was financially supported by the Natural Science Foundation of China (Grants 21606084 and 21476085), the National Key R&D Program of China (2016YFB0302201), and the Fundamental Research Funds for the Central Universities (22221818014). We also sincerely appreciate Prof. Qu Jingping's team in Dalian University of Technology for the help with the analysis for the single crystal of HHPA-Zn.

语种：英文

外文关键词：Calorimeters - Lattice theory - Zinc compounds - X ray scattering - Zinc - Impact strength - Crystal structure - Differential scanning calorimetry - Polypropylenes

摘要：In our work, zinc hexahydrophthalate (HHPA-Zn) was synthesized and its beta-nucleating activity in isotactic polypropylene (iPP) was confirmed. The single crystals of HHPA-Zn were obtained for the first time, with the crystal structure analyzed. The results of differential scanning calorimeter (DSC) and wide-angle X-ray scattering (WAXS) showed that HHPA-Zn increased the crystallization temperature of iPP by 11.2 degrees C and induced considerable amount of beta-crystalline iPP (beta-iPP) with the K-beta up to 0.66. The investigations of the mechanical performance of iPP showed an increase of 193% in the impact strength with the help of HHPA-Zn. Based on the crystal structure data and the lattice matching theory, the structural matching mechanism of HHPA-Zn and iPP was proposed, and the crystallization process of iPP induced by single crystals of HHPA-Zn was observed by polarized light microscope (PLM) to support the epitaxial crystallization of beta-iPP. Flash differential scanning calorimeter (Flash DSC) was conducted to explain the formation of a bit alpha-crystalline in crystallization.