Optimization of potassium zinc phosphate anticorrosion pigment by Taguchi experimental design

被引：50

作者：

Alibakhshi, E.

Ghasemi, E. ^{[3
]}

Mahdavian, M. ^{[1
,2
]}

机构：

[1] Sahand Univ Technol, Dept Polymer Engn, Tabriz, Iran

[2] Sahand Univ Technol, Inst Polymer Mat, Tabriz, Iran

[3] Inst Color Sci & Technol, Inorgan Pigment & Glazes Dept, Tehran, Iran

来源：

PROGRESS IN ORGANIC COATINGS | 2013年 / 76卷 / 01期

关键词：

Anticorrosion pigment; EIS; Turbidimetry; Taguchi; Salt spray; SEM-EDX; ELECTROCHEMICAL IMPEDANCE SPECTROSCOPY; CORROSION PROTECTION; ORGANIC COATINGS; EIS; CHROMATE; STEEL; PAINT; TRIPOLYPHOSPHATE; FILMS;

D O I：

10.1016/j.porgcoat.2012.09.009

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The synthesis condition of potassium zinc phosphate pigment was optimized with respect to corrosion inhibition in extract solution and dispersion stability in an epoxy resin by application of Taguchi experimental design. Processing parameters, including calcinations time, quiescent time, mixing rate and KOH/ZnCl2 mole ratio are selected as the influential parameters. Corrosion inhibition of the pigments in the extract solutions and dispersion stability in the epoxy resin were evaluated by electrochemical impedance spectroscopy (EIS) and turbidity measurement, respectively. The pigment synthesized under optimal condition was characterized by XRD, which showed formation of KZnPO4 and KZn2PO4(HPO4). Corrosion protection of the epoxy coating containing synthesized pigment at optimal condition was evaluated by salt spray and compared to the unpigmented epoxy coating. Salt spray results showed higher corrosion protection of the epoxy coating in the presence of potassium zinc phosphate, which could be attributed to lower diffusivity of the pigmented coating to Cl- or formation of phosphate layer confirmed by SEM-EDX. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：224 / 230

页数：7

共 26 条

[1] Barraclough J., 1965, J OIL COLOUR CHEMIST, V48, P341
[2] Corrosion inhibition by chromate and phosphate extracts for iron substrates studied by EIS and SVET
Bastos, A. C.
Ferreira, M. G.
Simoes, A. M.
[J]. CORROSION SCIENCE, 2006, 48 (06) : 1500 - 1512
[3] Three generations of inorganic phosphates in solvent and water-borne paints:: A synergism case
Blustein, G
Deyá, MC
Romagnoli, R
del Amo, B
[J]. APPLIED SURFACE SCIENCE, 2005, 252 (05) : 1386 - 1397
[4] Buxbaum G., 2005, IND INORGANIC PIGMEN, V3rd
[5] NONTOXIC ANTICORROSIVE PIGMENTS
CHROMY, L
KAMINSKA, E
[J]. PROGRESS IN ORGANIC COATINGS, 1990, 18 (04) : 319 - 324
[6] Statistical evaluation of EIS and ENM data collected for monitoring corrosion barrier properties of organic coatings on Al-2024-T3
De Rosa, RL
Earl, DA
Bierwagen, GP
[J]. CORROSION SCIENCE, 2002, 44 (07) : 1607 - 1620
[7] Zinc tripolyphosphate:: An anticorrosive pigment for paints
Deyá, M
Vetere, VF
Romagnoli, R
del Amo, B
[J]. SURFACE COATINGS INTERNATIONAL PART B-COATINGS TRANSACTIONS, 2003, 86 (01) : 79 - 85
[8] Synthesis and characterisation of the layered zinc phosphate KZn2(PO4)(HPO4)
Echavarría, A
Simon-Masseron, A
Paillaud, JL
Gramlich, V
Saldarriaga, C
[J]. INORGANICA CHIMICA ACTA, 2003, 343 : 51 - 55
[9] Reduced PVC and the design of metal primers
Hare, CH
Kurnas, JS
[J]. JOURNAL OF COATINGS TECHNOLOGY, 2000, 72 (910): : 21 - 27
[10] Anticorrosive spinel-type pigments of the mixed metal oxides compared to metal polyphosphates
Kalendová, A
Vesely, D
Brodinová, J
[J]. ANTI-CORROSION METHODS AND MATERIALS, 2004, 51 (01) : 6 - 17

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