Glass transition temperature depression at the percolation threshold in carbon nanotube-epoxy resin and polypyrrole-epoxy resin composites

被引：86

作者：

Barrau, S ^{[1
]}

Demont, P ^{[1
]}

Maraval, C ^{[1
]}

Bernes, A ^{[1
]}

Lacabanne, C ^{[1
]}

机构：

[1] Univ Toulouse 3, CNRS, UMR 5085, CIRIMAT,Lab Phys & Polymeres, F-31062 Toulouse, France

来源：

MACROMOLECULAR RAPID COMMUNICATIONS | 2005年 / 26卷 / 05期

关键词：

carbon nanotubes; electrical percolation threshold; epoxy resin; glass transition; polypyrrole;

D O I：

10.1002/marc.200400515

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 [高分子化学与物理]; 080501 [材料物理与化学]; 081704 [应用化学];

摘要：

The glass transition temperatures of conducting composites, obtained by blending carbon nanotubes (CNTs) or polypyrrole (PPy) particles with epoxy resin, were investigated by using both differential scanning calorimetry (DSC) and dynamical mechanical thermal analysis (DMTA). For both composites, dc and ac conductivity measurements revealed an electrical percolation threshold at which the glass transition temperature and mechanical modulus of the composites pass through a minimum.

引用

页码：390 / 394

页数：5

共 26 条

[1]

Ajayan PM, 2000, ADV MATER, V12, P750, DOI 10.1002/(SICI)1521-4095(200005)12:10<750::AID-ADMA750>3.0.CO

[2]

2-6

[3]

High specific surface area carbon nanotubes from catalytic chemical vapor deposition process [J].