Electrical conductivity recovery in carbon nanotube polymer composites after transient shear

被引：118

作者：

Alig, I.

Skipa, T.

Engel, M.

Lellinger, D.

Pegel, S.

Poetschke, P.

机构：

[1] Deutsch Kunststoff Inst Darmstadt, D-64289 Darmstadt, Germany

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

来源：

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS | 2007年 / 244卷 / 11期

关键词：

D O I：

10.1002/pssb.200776138

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Investigations on electric conductivity have been performed on polycarbonate (PC) containing 0.6 vol% of multi-walled carbon nanotubes (MWNT) in a rheometer, where the plates act as capacitor plates for dielectric spectroscopy. The time dependent recovery of the DC-conductivity was recorded in the rest time after a transient shear deformation. The DC-conductivity shows a tremendous increase with the time after shearing. This conductivity recovery is explained by the reorganization of the conducting MWNT-network, which was destroyed by the shear. The reformation kinetics of MWNT-clusters is considered as a cooperative cluster-cluster aggregation coupled to electrical percolation of conductive MWNT. (c) 2007 WILEY-NCH Verlag GmbH & Co. KGaA, Weinheim.

引用

页码：4223 / 4226

页数：4

共 6 条

[1] Conductivity spectroscopy on melt processed polypropylene-multiwalled carbon nanotube composites:: Recovery after shear and crystallization [J].