Multilayered polypyrrole-SiO2 composite coatings for functionalization of stainless steel: Characterization and corrosion protection behavior

被引：27

作者：

Grari, O. ^{[1
,2
]}

Taouil, A. Et ^{[2
]}

Dhouibi, L. ^{[1
]}

Buron, C. C. ^{[3
]}

Lallemand, F. ^{[2
]}

机构：

[1] Univ Tunis El Manar, Unite Rech Mecan Energet ENIT, Equipe COPROMET, Belvedere 1002, Tunisia

[2] Univ Franche Comte, Inst UTINAM, UMR CNRS 6123, F-25009 Besancon, France

[3] Univ Franche Comte, Inst UTINAM, UMR UFC CNRS 6123, F-25030 Besancon, France

来源：

PROGRESS IN ORGANIC COATINGS | 2015年 / 88卷

关键词：

SiO2; particles; Polypyrrole; Electropolymerization; Electrophoretic deposition; Glow discharge optical emission spectroscopy; ELECTROPHORETIC DEPOSITION; 316L SS; ELECTROCHEMICAL SYNTHESIS; NANOCOMPOSITE COATINGS; FILMS; ELECTRODEPOSITION; NANOPARTICLES; RESISTANCE; PH;

D O I：

10.1016/j.porgcoat.2015.06.019

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Two different multilayered composite polypyrrole/SiO2 coatings were synthesized on 304 stainless steel. Electrochemical and electrophoretic depositions were used to grow polypyrrole and SiO2 layers, respectively. Coatings were characterized by glow discharge optical emission spectroscopy to observe repartition of elements within different layers, by scanriing electron microscopy to observe surface morphology and by electrochemistry to investigate corrosion protection behavior. The electrophoretic approach enables good incorporation of SiO2 particles. This incorporation was more extensive and more homogeneous than for coatings obtained with the mixing method related in previous works. Moreover, incorporation and repartition of SiO2 particles are greatly enhanced when the silica layer is grown directly on the steel surface. Corrosion protection of the stainless steel substrate was improved when multilayered composite polypyrrole/SiO2 coatings were used. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：48 / 53

页数：6

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