Silane Treatment of Carbon Nanotubes and Its Effect on the Tribological Behavior of Carbon Nanotube/Epoxy Nanocomposites

被引：17

作者：

Lee, J. H. ^{[1
]}

Rhee, K. Y. ^{[1
]}

机构：

[1] Kyung Hee Univ, Ind Liaison Res Inst, Sch Mech & Ind Syst Engn, Yongin 446701, South Korea

来源：

JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY | 2009年 / 9卷 / 12期

关键词：

Nanocomposites; Tribological Behavior; Carbon Nanotubes; Silane Treatment; SURFACE-MODIFICATION; WEAR BEHAVIOR; COMPOSITES; EPOXY; 3-AMINOPROPYLTRIETHOXYSILANE;

D O I：

10.1166/jnn.2009.1618

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Functionalization of carbon nanotubes (CNTs) influences dispersion and interfacial strength in CNT-reinforced nanocomposites. In this study, multi-walled CNTs were functionalized via oxidation with a mixture of sulfuric acid (H2SO4) and nitric acid (HNO3). Then, the functionalized CNTs with oxidation were surface-modified using a coupling agent, 3-aminopropyltriethoxysilane. CNT/epoxy nanocomposites were fabricated using oxidized CNTs and silane-modified CNTs, respectively, to investigate the effect of silane treatment on the tribological behavior of CNT/epoxy nanocomposites. Wear tests were performed on oxidized and silanized CNT/epoxy nanocomposites, at three different sliding speeds. The results showed that the friction coefficient and wear rate of silanized CNT/epoxy nanocomposites were lower than those of oxidized CNT/epoxy nanocomposites, regardless of sliding speed. The improved tribological behavior of silanized CNT/epoxy nanocomposites occurred due to the improved dispersion of CNTs into the epoxy and improved adhesion with the epoxy.

引用

页码：6948 / 6952

页数：5

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