Novel conducting polymer based composite coatings for corrosion protection of zinc

被引：37

作者：

Bai, Xiaoxia ^{[1
,2
,3
]}

The Hai Tran ^{[2
]}

Yu, Demei ^{[1
]}

Vimalanandan, Ashokanand ^{[2
]}

Hu, Xiujie ^{[3
]}

Rohwerder, Michael ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Mat Sci & Engn, Xian 710049, Peoples R China

[2] Max Planck Inst Eisenforsch GmbH, D-40237 Dusseldorf, Germany

[3] Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China

来源：

CORROSION SCIENCE | 2015年 / 95卷

关键词：

Zinc; Polarization; Atmospheric corrosion; Interfaces; Polymer coatings; PART; 1; ORGANIC COATINGS; POLYANILINE; DELAMINATION; POLY(3,4-ETHYLENEDIOXYTHIOPHENE); ALUMINUM; STEEL; INHIBITION; ADDITIVES; CHROMATE;

D O I：

10.1016/j.corsci.2015.03.003

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

The application of conducting polymers on zinc tends to result in an electronically highly insulating interface-leading even-to-Fermi-level misalignment at the polymer/metal interface. This makes-the conducting polymers electrochemically inactive. To prevent this Fermi-level misalignment, carbon black was introduced as conductive spacer between the conducting polymer and the zinc into composite coatings of poly (3,4-ethylenedioxythiophene) (PEDOT) nanoparticles and a polyvinyl butyral (PVB) binder. It was found that the carbon black not only enabled electronic contact between zinc and the PEDOT, but also increased the amount of electrochemical available PEDOT in the coating, by supplying the necessary conductive pathways. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：110 / 116

页数：7

共 29 条

[1]

Fabrication of composite coatings of 4-(pyrrole-1-y1) benzoate-modified poly-3,4-ethylenedioxythiophene with phosphomolybdate and their application in corrosion protection [J].