'Smart' corrosion inhibiting coatings

被引：142

作者：

Kendig, M ^{[1
]}

Hon, M ^{[1
]}

Warren, L ^{[1
]}

机构：

[1] Rockwell Sci Co LLC, Thousand Oaks, CA 91360 USA

来源：

PROGRESS IN ORGANIC COATINGS | 2003年 / 47卷 / 3-4期

关键词：

oxygen reduction reaction; 'smart' coating; polyaniline films;

D O I：

10.1016/S0300-9440(03)00137-1

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Under certain conditions, the driving force of corrosion produces protective oxide films, a process typically referred to as passivity. In cases where passivity is difficult to achieve, for example, for Al alloys in neutral NaCl solutions, it is conceivable that a 'smart' coating can be micro- or nano-engineered to use the energy of the corrosion to generate 'on demand' a corrosion inhibitor for stopping or slowing corrosion at defects. Work at Rockwell Scientific provides evidence that anionic inhibitors for the oxygen reduction reaction (ORR), when used as dopants for conducting polyaniline (PANI) films, inhibit corrosion of a Al 2024-T3 substrate at a scribe. In effect, the scribe polarizes the PANI causing it to release the inhibitor. (C) 2003 Elsevier B.V. All rights reserved.

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页码：183 / 189

页数：7

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