文献类型：期刊文献

英文题名：An effective nucleating agent for isotactic polypropylene (iPP): Zinc bis- (nadic anhydride) double-decker silsesquioxanes

作者：Zhang, Xian[1];Zhao, Shicheng[1];Kuo, Shiao-Wei[1,2];Chen, Wei-Cheng[1,2];Mohamed, Mohamed Gamal[3];Xin, Zhong[1]

机构：[1]East China Univ Sci & Technol, Shanghai Key Lab Multiphase Mat Chem Engn, Dept Prod Engn, Shanghai 200237, Peoples R China;[2]Natl Sun Yat Sen Univ, Dept Mat & Optoelect Sci, Kaohsiung 804, Taiwan;[3]Assiut Univ, Dept Chem, Fac Sci, Assiut 71516, Egypt

年份：2021

卷号：220

外文期刊名：POLYMER

收录：;EI(收录号：20211010025948);WOS:【SCI-EXPANDED(收录号:WOS:000635150500004)】；

基金：This works was financially supported by National Natural Science Foundation of China (Grants 21878089 and 21606084), the National key R&D Program of China (2016YFB0302201) and the Fundamental Research Funds for the Central Universities (22221818010).

语种：英文

外文关键词：Isotactic polypropylene; POSS-based nucleating agent; Fast scanning calorimetry (FSC)

摘要：The zinc bicyclo [2.2.1]-heptane-2, 3-dicarboxylate-double-decker silsesquioxanes (Zn2(DDSQ-ND)) was firstly synthesized and the crystallization behavior of isotactic polypropylene (iPP) filled with different amount of Zn2(DDSQ-ND) (0?1 wt %) was investigated in detail. With the addition of Zn2(DDSQ-ND), the crystallization temperature enhanced significantly, indicating that it acted novel and effective nucleating agent in the iPP system. The morphology of spherulites, nucleation density, and the crystal structure of the samples were characterized using POM and WAXD. Besides, ultra-fast scanning calorimetry (FSC) was employed to study the effects of Zn2(DDSQ-ND) on the non-isothermal and isothermal crystallization behaviors of the sample iPP/Zn2(DDSQND) under the high cooling rates and wide crystallization temperature ranges, as well as the cold crystallization and recrystallization behavior during the heating process. The data suggested that Zn2(DDSQ-ND) accelerated the formation of ?-phase iPP and acted as a novel ?-nucleating agent in the iPP system.