Rheological characterization of melt processed polycarbonate-multiwalled carbon nanotube composites

被引：143

作者：

Abdel-Goad, M ^{[1
]}

Pötschke, P ^{[1
]}

机构：

[1] Leibniz Inst Polymer Res Dresden, D-01069 Dresden, Germany

来源：

JOURNAL OF NON-NEWTONIAN FLUID MECHANICS | 2005年 / 128卷 / 01期

关键词：

polycarbonate; multiwalled carbon nanotube; nanocomposite; melt rheology;

D O I：

10.1016/j.jnnfm.2005.01.008

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this study polycarbonate/multiwalled carbon nanotube composites were produced with different compositions by diluting a masterbatch using melt mixing in a DACA-Micro-Compounder. The composites were rheologically characterized using an ARES-rheometer in the dynamic mode under nitrogen atmosphere at 280 degrees C and frequency varying from 100 to 0.056 rad/s. The results showed that the dynamic moduli and the viscosity increased with increasing MWNT content. At a concentration of 0.5 wt.% MWNT, a significant change in the frequency dependence of the moduli was observed which indicates a transition from a liquid like to a solid like behavior of the nanocomposites. This transition can be related to the formation of a combined network between the nanotubes and the polymer chains. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：2 / 6

页数：5

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