PAni as prospective replacement of chromium conversion coating in the protection of steels and aluminum alloys

被引：12

作者：

Huerta-Vilca, D

Siefert, B

Moraes, SR

Pantoja, MF

Motheo, AJ ^{[1
]}

机构：

[1] Tech Univ Clausthal, ABKO, D-38678 Clausthal Zellerfeld, Germany

[2] USP, IQSC, BR-13560970 Sao Carlos, SP, Brazil

来源：

MOLECULAR CRYSTALS AND LIQUID CRYSTALS | 2004年 / 415卷

关键词：

AA6061-T6; AISI; 304; copolymers; corrosion protection; PAni; POMA;

D O I：

10.1080/15421400490482213

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Corrosion inhibition properties of chemical and electrochemically synthesized polyaniline (PAni), poly-o-methoxianiline (POMA) and their copolymers, in form of coatings of stainless steel AISI 304 and aluminum alloy 6061-T6 are studied in 3% and 0.1 M NaCl solutions, respectively. Polarization curves showed that the protection of steels by PAni is of anodic nature by setting the redox potential in the passive potential of the substrate. However, the protection of aluminum alloys after separation of both the corrosion and pitting potential is also anodic.

引用

收藏

页码：229 / 238

页数：10

相关论文

共 16 条

[1] Nest generation of aircraft coatings systems [J].

Bierwagen, G .

JOURNAL OF COATINGS TECHNOLOGY, 2001, 73 (915) :45-52

[2] Electrosynthesis of adherent polyaniline films on iron and mild steel in aqueous oxalic acid medium [J].

Camalet, JL ;

Lacroix, JC ;

Aeiyach, S ;

Chane-Ching, K ;

Lacaze, PC .

SYNTHETIC METALS, 1998, 93 (02) :133-142

[3] MODIFICATION OF THE ELECTROCHEMICAL AND CORROSION BEHAVIOR OF STAINLESS-STEELS WITH AN ELECTROACTIVE COATING [J].

DEBERRY, DW .

JOURNAL OF THE ELECTROCHEMICAL SOCIETY, 1985, 132 (05) :1022-1026

[4] Corrosion protection of aluminum and aluminum alloys by polyanilines: A potentiodynamic and photoelectron spectroscopy study [J].

Epstein, AJ ;

Smallfield, JAO ;

Guan, H ;

Fahlman, M .

SYNTHETIC METALS, 1999, 102 (1-3) :1374-1376

[5] Electrosynthesized polyaniline for the corrosion protection of aluminum alloy 2024-T3 [J].

Huerta-Vilca, D ;

Moraes, SR ;

Motheo, AJ .

JOURNAL OF THE BRAZILIAN CHEMICAL SOCIETY, 2003, 14 (01) :52-58

[6] CORROSION PROTECTION OF MILD-STEEL BY COATINGS CONTAINING POLYANILINE [J].

LU, WK ;

ELSENBAUMER, RL ;

WESSLING, B .

SYNTHETIC METALS, 1995, 71 (1-3) :2163-2166

[7]

MCANDREW TP, 1996, P AM CHEM SOC DIV PO, V74, P204

[8] Polyaniline synthesized in phosphate buffered media applied to corrosion protection [J].

Moraes, SR ;

Huerta-Vilca, D ;

Motheo, AJ .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 2002, 374 :391-396

[9] Studies on chemical oxidative copolymerization of aniline and o-alkoxysulfonated anilines:: I.: Synthesis and characterization of novel self-doped polyanilines [J].

Prévost, V ;

Petit, A ;

Pla, F .

SYNTHETIC METALS, 1999, 104 (02) :79-87

[10]

Racicot RJ, 1996, MATER RES SOC SYMP P, V413, P529