Electrochemical impedance spectroscopy study on the diffusion behavior of water through epoxy coatings

被引：9

作者：

Liu, B ^{[1
]}

Li, Y ^{[1
]}

Lin, H ^{[1
]}

Cao, CN ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, State Key Lab Corros & Protect, Shenyang 110016, Peoples R China

来源：

CORROSION | 2003年 / 59卷 / 09期

关键词：

diffusion behavior; electrochemical impedance spectroscopy; epoxy coatings;

D O I：

10.5006/1.3277610

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The diffusion behavior of water through epoxy coatings with micaceous iron oxide (MIO) at different pigment volume concentration (PVC) was studied by EIS techniques. Experimental results showed that, in the initial diffusion period, the diffusion processes of water through epoxy coatings immersed in 0.5 M sodium chloride (NaCl) solution followed Fick's second law. The diffusion coefficients of water through the coatings were also calculated. Within the PVC values that were studied, the diffusion coefficients of water through epoxy coatings decreased with increasing PVC, indicating that the barrier property of the pigment was the main factor affecting the water diffusion behavior.

引用

页码：817 / 820

页数：4

共 12 条

[1] A STUDY OF CORROSION INITIATION ON POLYIMIDE COATINGS [J].

BELLUCCI, F ;

NICODEMO, L ;

MONETTA, T ;

KLOPPERS, MJ ;

LATANISION, RM .

CORROSION SCIENCE, 1992, 33 (08) :1203-1226

[2] WATER TRANSPORT IN ORGANIC COATINGS [J].

BELLUCCI, F ;

NICODEMO, L .

CORROSION, 1993, 49 (03) :235-247

[3] EIS evaluation of attached and free polymer films [J].

Castela, ASL ;

Simoes, AM ;

Ferreira, MGS .

PROGRESS IN ORGANIC COATINGS, 2000, 38 (01) :1-7

[4] Influence of the photo-oxidative degradation on the water barrier and corrosion protection properties of polyester paints [J].

Deflorian, F ;

Fedrizzi, L ;

Bonora, PL .

CORROSION SCIENCE, 1996, 38 (10) :1697-1708

[5] THEORY OF DIELECTRIC-PROPERTIES OF HETEROGENEOUS SUBSTANCES APPLIED TO WATER IN A PAINT FILM [J].

LINDQVIST, SA .

CORROSION, 1985, 41 (02) :69-75

[6] ELECTROLYTE PENETRATION THROUGH EPOXY COATINGS ELECTRODEPOSITED ON STEEL [J].

MISKOVICSTANKOVIC, VB ;

DRAZIC, DM ;

TEODOROVIC, MJ .

CORROSION SCIENCE, 1995, 37 (02) :241-252

[7] Characterisation of the barrier properties of different paint systems Part II.: Non-ideal diffusion and water uptake kinetics [J].

Pérez, C ;

Collazo, A ;

Izquierdo, M ;

Merino, P ;

Nóvoa, XR .

PROGRESS IN ORGANIC COATINGS, 1999, 37 (3-4) :169-177

[8] Characterisation of the barrier properties of different paint systems - Part I. Experimental set-up and ideal Fickian diffusion [J].

Perez, C ;

Collazo, A ;

Izquierdo, M ;

Merino, P ;

Novoa, XR .

PROGRESS IN ORGANIC COATINGS, 1999, 36 (1-2) :102-108

[9] THE BARRIER PROPERTIES OF PAINT COATINGS [J].

THOMAS, NL .

PROGRESS IN ORGANIC COATINGS, 1991, 19 (02) :101-121

[10] THE DETERMINATION OF COATING PERFORMANCE WITH IMPEDANCE MEASUREMENTS .2. WATER-UPTAKE OF COATINGS [J].

VANWESTING, EPM ;

FERRARI, GM ;

DEWIT, JHW .

CORROSION SCIENCE, 1994, 36 (06) :957-977

← 1 2 →