Creep behavior and mechanical properties of isotactic polypropylene composites via twice melt injection molding

被引：15

作者：

Wang X. ^{[1
]}

Yuan H. ^{[1
,2
]}

Pan Y. ^{[1
,2
,3
]}

Liu C. ^{[1
,3
,4
]}

Shen C. ^{[1
,2
,3
]}

Liu X. ^{[1
,3
]}

机构：

[1] National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University, Zhengzhou

[2] College of Materials Science and Engineering, Zhengzhou University, Zhengzhou

[3] Key Laboratory of Materials Processing and Mold (Zhengzhou University), Ministry of Education, Zhengzhou

[4] Technology Development Center for Polymer Processing Engineering, Guangdong Colleges and Universities, Guangdong Industry Technical College, Guangzhou

来源：

Advanced Industrial and Engineering Polymer Research | 2019年 / 2卷 / 03期

基金：

中国国家自然科学基金; 中国博士后科学基金;

关键词：

Injection molding; iPP composites; Oriented structure; Shear stress;

D O I：

10.1016/j.aiepr.2019.06.001

中图分类号：

学科分类号：

摘要：

Nowadays, the improvement of injection molding technology development research is in great demand due to the limitation of convenient injection molding for structural engineering applications. For injection-molded products, oriented structure is ubiquitous. To promote the formation of oriented structure, exert a positive impact on the final mechanical properties of polymer products, an advanced injection molding process is used to achieve multiple shear melt in this work. Based on our previous work about melt multi-injection molding technology, to investigate the influence about oriented structure of composites attracted by higher shear stress, iPP/MWCNTs and iPP/β-NA composites were studied. Compared to traditional injection-molded samples, the addition of MWCNTs impede the formation of oriented structure. For iPP/β-NA composites, the higher flow shear stress inside the mold wall increase the overall crystallinity but restrain the growth of β-crystal. © 2019 Kingfa SCI. & TECH. CO., LTD.

引用

页码：102 / 109

页数：7

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