Effect of block-copolymer dispersants on properties of carbon nanotube/epoxy systems

被引：51

作者：

Loos, M. R. ^{[1
]}

Yang, J. ^{[1
]}

Feke, D. L. ^{[2
]}

Manas-Zloczower, I. ^{[1
]}

机构：

[1] Case Western Reserve Univ, Dept Macromol Sci & Engn, Cleveland, OH 44106 USA

[2] Case Western Reserve Univ, Dept Chem Engn, Cleveland, OH 44106 USA

来源：

COMPOSITES SCIENCE AND TECHNOLOGY | 2012年 / 72卷 / 04期

关键词：

Carbon nanotubes; Nano composites; Polymer-matrix composites (PMCs); Mechanical properties; Wind turbine blades; RESIN COMPOSITES; REINFORCED EPOXY; FUNCTIONALIZATION;

D O I：

10.1016/j.compscitech.2011.11.034

中图分类号：

TB33 [复合材料];

学科分类号：

摘要：

The effects of the addition of eight different block copolymers on the dispersion stability of multi-walled carbon nanotubes (MWCNTs) are reported. Suspensions of CNTs in different components of an epoxy system have been prepared using a tip sonicator and different amounts of block copolymers. The resistance to sedimentation of MWCNTs in various media was systematically investigated by using a centrifugation technique. Block copolymers that result in dispersions of MWCNTs in epoxy and hardener stable for more than 1 week have been obtained. Dispersions using a single or a combination of two different dispersing agents have been used for the fabrication of MWCNT nanocomposites. The effect of different preparation routes and use of block copolymers on the tensile properties and surface resistivity of the composites have been evaluated. The results obtained have been related with the dispersion stability of the MWCNTs in the epoxy components. Published by Elsevier Ltd.

引用

页码：482 / 488

页数：7

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