Processing and properties of MWNT/HDPE composites

被引：184

作者：

Zou, YB ^{[1
]}

Feng, YC ^{[1
]}

Wang, L ^{[1
]}

Liu, XB ^{[1
]}

机构：

[1] Chinese Acad Sci, Chengdu Inst Organ Chem, Chengdu 610041, Peoples R China

来源：

CARBON | 2004年 / 42卷 / 02期

关键词：

carbon nanotubes; thermal analysis; mechanical property;

D O I：

10.1016/j.carbon.2003.10.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Multi-walled carbon nanotube (MWNT) composites were fabricated using the screw extrusion and injection technique. The polymer-wrapped MWNTs were dispersed in fumed silicon dioxide with the help of ultrasonic stirring, and then further dispersed in a high density polyethylene (HDPE) matrix by a twin-screw extruder. It was found that there was a critical MWNT concentration around 1.0 wt% where a fine network of MWNT/SiO2 Was formed. This gives the MWNT/HDPE composites much improved mechanical properties. From the mechanical property, it was found that the surface treatment of MWNT/SiO2 had a large effect on the performance of the composites. Thermogravimetric analysis (TGA) measurement showed that MWNT could stabilize HDPE when its weight content was greater than 2.0 wt%, whereas silicon dioxide accelerated thermo-oxidation of the composites. (C) 2003 Elsevier Ltd. All rights reserved.

引用

页码：271 / 277

页数：7

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