Dispersion, interfacial interaction and re-agglomeration of functionalized carbon nanotubes in epoxy composites

被引：518

作者：

Ma, Peng-Cheng ^{[1
]}

Mo, Shan-Yin ^{[1
]}

Tang, Ben-Zhong ^{[2
]}

Kim, Jang-Kyo ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Mech Engn, Kowloon, Hong Kong, Peoples R China

[2] Hong Kong Univ Sci & Technol, Dept Chem, Kowloon, Hong Kong, Peoples R China

来源：

CARBON | 2010年 / 48卷 / 06期

关键词：

POLYMER COMPOSITES; BEHAVIOR; NANOCOMPOSITES; THRESHOLD; ADHESION; UV/OZONE;

D O I：

10.1016/j.carbon.2010.01.028

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：

The surface, interfacial and dispersion properties of carbon nanotubes (CNTs), and the mechanical properties of the CNT/epoxy composites affected by CNT functionalization are investigated. It is demonstrated that there exists strong correlations between amino-functionalization, dispersion, wettability, interfacial interaction and re-agglomeration behaviour of CNTs and the corresponding mechanical and thermo-mechanical properties of CNT/epoxy composites. The amino-functionalized CNTs exhibit higher surface energy and much better wettability with epoxy resin than the pristine CNTs, and the attached amine molecules arising from the functionalization effectively inhibit the re-agglomeration of CNTs during the curing of resin. These ameliorating effects along with improved interfacial adhesion between the matrix and functionalized CNTs through covalent bonds result in improved flexural and thermo-mechanical properties compared with those without functionalization. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：1824 / 1834

页数：11

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