Effects of carbon nanotube content on adhesion strength and wear and corrosion resistance of epoxy composite coatings on AA2024-T3

被引：107

作者：

Khun, N. W. ^{[1
]}

Rincon Troconis, Brendy C. ^{[1
]}

Frankel, G. S. ^{[1
]}

机构：

[1] Ohio State Univ, Fontana Corros Ctr, Columbus, OH 43210 USA

来源：

PROGRESS IN ORGANIC COATINGS | 2014年 / 77卷 / 01期

关键词：

Epoxy composite coating; MWCNT; Adhesion; Wear; Corrosion; ALUMINUM-ALLOY; 2024-T3; TRIBOLOGICAL BEHAVIOR; LOCALIZED CORROSION; ELECTROCHEMICAL-BEHAVIOR; POLYMERIC COMPOSITES; SLIDING WEAR; FRICTION; STEEL; NANOCOMPOSITES; INITIATION;

D O I：

10.1016/j.porgcoat.2013.08.003

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The effects of multiwalled carbon nanotube (MWCNT) content on the adhesion strength and wear and corrosion resistance of the epoxy composite coatings prepared on aluminum alloy (AA) 2024-T3 substrates were evaluated using atomic force microscopy (AFM), blister test, ball-on-disk micro-tribological test and electrochemical impedance spectroscopy (EIS). The adhesion strength of the epoxy composite coatings improved with increasing MWCNT content. Increased MWCNT content also decreased the friction coefficient and increased the wear resistance of the epoxy composite coatings due to improved solid lubricating and rolling effects of the MWCNTs and the improved load bearing capacity of the composite coatings. Finally, EIS indicated that increased MWCNT content increased the coating pore resistance due to a decreased porosity density, which resulted in an increase in the total impedance of the coated samples. (C) 2013 Elsevier B.V. All rights reserved.

引用

页码：72 / 80

页数：9

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