文献类型：期刊文献

英文题名：Plywood-like structures of injection-molded polypropylene

作者：Wang, Guanglong[1];Cao, Junhui[1];Hou, Shusen[1];Ding, Peng[1];Yu, Weixin[1];Yang, Zhijun[1];Chen, Jingbo[2]

第一作者：王广龙

通讯作者：Wang, GL[1];Cao, JH[1]

机构：[1]Xinxiang Univ, Sch Mech & Elect Engn, Xinxiang 453003, Henan, Peoples R China;[2]Zhengzhou Univ, Sch Mat Sci & Engn, Zhengzhou, Peoples R China

第一机构：新乡学院机电工程学院

通讯机构：[1]corresponding author), Xinxiang Univ, Sch Mech & Elect Engn, Xinxiang 453003, Henan, Peoples R China.|[1107111]新乡学院机电工程学院;[11071]新乡学院;

年份：2021

卷号：61

期号：9

起止页码：2267-2275

外文期刊名：POLYMER ENGINEERING AND SCIENCE

收录：;EI(收录号：20212910641931);Scopus(收录号：2-s2.0-85110045921);WOS:【SCI-EXPANDED(收录号:WOS:000672910800001)】；

基金：Key Scientific Research Projects of Colleges and Universities in Henan Province, Grant/Award Number: 19B430008; National Natural Science Foundation of China, Grant/Award Number: 11872338

语种：英文

外文关键词：crystal structures; injection molding; mechanical properties; orientation; poly(propylene) (PP); structure-property relations

摘要：N,N '-dicyclohexyl-2,6-naphthalenedicarboxamide, a commercial nucleating agent, can dissolve into molten polypropylene (PP) and self-organize into needle-like crystals when the melt temperature reaches 260 degrees C. As temperature decreases, PP molecules crystallize on the surface of the needle-like crystals with their c-axis perpendicular to the long axis of the crystal. Under a flow field in injection molding, PP chains are parallel or perpendicular to the flow direction at different depths owing to the difference in crystallization kinetics and applied shear rate in the melt, forming a plywood-like material. This unique structure can simultaneously improve the toughness and strength of plastic parts. Herein, we present a novel method of producing high-performance plastic articles based on general plastics by manipulating their morphology and structure.