IMPROVEMENT OF CORROSION RESISTANCE OF ORGANIC-INORGANIC HYBRID COATINGS BASED ON EPOXY-SILICA VIA AROMATIC DIOL CURING AGENT

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ZANDI ZAND R.; ERSHAD LANGEROUDI A.; RAHIMI AZAM

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Paper Information

Journal: Iranian Journal of Polymer Science and Technology Year:2005 | Volume:17 | Issue:6 (ISSUE NO. 74) Page(s): 359-367

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Title

IMPROVEMENT OF CORROSION RESISTANCE OF ORGANIC-INORGANIC HYBRID COATINGS BASED ON EPOXY-SILICA VIA AROMATIC DIOL CURING AGENT

Author(s)

ZANDI ZAND R. | ERSHAD LANGEROUDI A. | RAHIMI AZAM | Issue Writer Certificate

Keywords

CORROSION RESISTANCEQ4

ELECTROCHEMISTRYQ4

ORGANIC-INORGANIC HYBRIDQ4

SILICAQ4

SOL-GELQ3

Abstract

Organic-inorganic hybrid coatings prepared by SOL-GEL process due to having organic-inorganic networks in their structure have a set of mechanical and chemical properties and as a result they attract a lot of interest. These coatings were prepared by a two-step process: hydrolysis and condensation reaction of silane compounds, that is, 3-glycidoxy propyl trimethoxy silane (GPTMS) and tetramethoxysilane (TMOS) in the presence of acid catalyst and as a bisphenol A (BPA) and an aromatic diol. Surface investigation of films and the bonds between the epoxy functional group of silane compound and the curing agent and also cross-linking between them and the curing agent and oxide layer were carried out by optical microscopy images and ATR-IR spectroscopy. CORROSION RESISTANCE of these coatings was studied by electrochemical and accelerated corrosion (salt spray) experiments. Both optical microscopy and ATR-IR spectroscopy observations revealed that the surface of these coatings have not any crack and reduction of absorption peaks in the region of 750 and 906cm-1 and the presence of a peak at 936cm-1 were attributed to cross-linking between BPA and epoxy function of silane compound and oxide layer of metal support surface, respectively. Electrochemical and accelerated corrosion experiment results showed that these compounds have good CORROSION RESISTANCE. Study of the effect of H2O and silane content on the degree of CORROSION RESISTANCE by electrochemical experiments indicated that the completion of hydrolysis reaction and reduction of silane content (%TMOS) make improvement on CORROSION RESISTANCE of ORGANIC-INORGANIC HYBRID coatings.

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APA: Copy

ZANDI ZAND, R., ERSHAD LANGEROUDI, A., & RAHIMI, AZAM. (2005). IMPROVEMENT OF CORROSION RESISTANCE OF ORGANIC-INORGANIC HYBRID COATINGS BASED ON EPOXY-SILICA VIA AROMATIC DIOL CURING AGENT. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), 17(6 (ISSUE NO. 74)), 359-367. SID. https://sid.ir/paper/6391/en

Vancouver: Copy

ZANDI ZAND R., ERSHAD LANGEROUDI A., RAHIMI AZAM. IMPROVEMENT OF CORROSION RESISTANCE OF ORGANIC-INORGANIC HYBRID COATINGS BASED ON EPOXY-SILICA VIA AROMATIC DIOL CURING AGENT. IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN)[Internet]. 2005;17(6 (ISSUE NO. 74)):359-367. Available from: https://sid.ir/paper/6391/en

IEEE: Copy

R. ZANDI ZAND, A. ERSHAD LANGEROUDI, and AZAM RAHIMI, “IMPROVEMENT OF CORROSION RESISTANCE OF ORGANIC-INORGANIC HYBRID COATINGS BASED ON EPOXY-SILICA VIA AROMATIC DIOL CURING AGENT,” IRANIAN JOURNAL OF POLYMER SCIENCE AND TECHNOLOGY (PERSIAN), vol. 17, no. 6 (ISSUE NO. 74), pp. 359–367, 2005, [Online]. Available: https://sid.ir/paper/6391/en

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