The effect of talc orientation and transcrystallization on mechanical properties and thermal stability of the polypropylene/talc composites

被引：52
|
作者：
Qiu, Feng [1 ]
Wang, Ming [1 ]
Hao, Yongbo [1 ]
Guo, Shaoyun [2 ]
机构：
[1] Southwest Univ, Sch Chem & Chem Engn, Chongqing 400715, Peoples R China
[2] Sichuan Univ, Polymer Res Inst, State Key Lab Polymer Mat Engn, Chengdu 610065, Sichuan, Peoples R China
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2014年 / 58卷
基金：
中国国家自然科学基金;
关键词：
Polymer matrix composites (PMCs); Mechanical properties; Extrusion; MOLECULAR-ORIENTATION; CRYSTAL ORIENTATION; CRYSTALLIZATION; PERFORMANCE; NUCLEATION; MORPHOLOGY; SHRINKAGE; RHEOLOGY; BEHAVIOR; BLENDS;
D O I：
10.1016/j.compositesa.2013.11.011
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The isotactic polypropylene/talc composites with talc stratified distribution were prepared by a multilayered co-extrusion technology. The talc orientation in polypropylene matrix was studied by scanning electronic microscopy and polarized light microscopy. The crystallization behavior of the composites was investigated by differential scanning calorimeter and polarized light microscopy. The mechanical properties and thermal stability of the composites were compared with the conventional blends by tensile machine and thermogravimetric analyzer, respectively. The composites with talc stratified distribution exhibited better mechanical properties and thermal stability than that of the conventional blends, which were related to the transcrystals in the unfilled polypropylene layers and the high orientation of talc particles in the filled polypropylene layers. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7 / 15
页数：9
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