Electrical, morphological and thermal properties of microinjection molded polyamide 6/multi-walled carbon nanotubes nanocomposites

被引：23
|
作者：
Zhou, Shengtai [1 ]
Hrymak, Andrew N. [1 ]
Kamal, Musa R. [2 ]
机构：
[1] Univ Western Ontario, Dept Chem & Biochem Engn, London, ON N6A 5B9, Canada
[2] McGill Univ, Dept Chem Engn, Montreal, PQ H3A 0C5, Canada
来源：
COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING | 2017年 / 103卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Polymer-matrix composites (PMCs); Microstructures; Thermal analysis; Injection molding; INJECTION-MOLDING PARAMETERS; ASPECT-RATIO; COMPOSITES; BEHAVIOR; CRYSTALLIZATION; CONDUCTIVITY; DISPERSION; TENSILE; MWCNT;
D O I：
10.1016/j.compositesa.2017.09.016
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A series of polyamide 6/multi-walled carbon nanotubes (PA6/CNT) nanocomposites were prepared using a masterbatch dilution process, followed by microinjection molding of a part with a three-step decrease in thickness along the flow direction. Morphology observations revealed that there was a preferential orientation of CNT in the flow direction, which is attributed to the prevailing high shear rates in OM. The distribution of CNT after melt processing was evaluated by dissolving experiments. Additionally, the correlation between electrical resistivity and development of microstructure for each section of the microparts was considered. The thermal behavior of PA6/CNT nanocomposites and corresponding micro parts was evaluated using differential scanning calorimetry. Results indicated that the addition of CNT had little effect on the melting behavior of PA6/CNT nanocomposites and corresponding microparts. However, the crystallization behavior was changed significantly and a double crystallization peak was observed for samples incorporating CNT. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：84 / 95
页数：12
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