Corrosion Inhibition Performance of Fluorocarbon Surfactant FY-F501 for Aluminum Alloy

doi:10.3724/SP.J.1095.2014.30246

Chinese Journal of Applied Chemistry

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Corrosion Inhibition Performance of Fluorocarbon Surfactant FY-F501 for Aluminum Alloy

GAO Jinlong, WU Haixia, ZHANG Congjing, WANG Kuitao^*

(Key Laboratory of Medicinal Molecular Chemistry in Hebei Province;Hebei Research
Center of Pharmaceutical and Chemical Engineering;College of Chemical and Pharmaceutical
Engineering,Hebei University of Science and Technology,Shijiazhuang 050000,China)

Received:2013-05-17 Revised:2013-06-21 Published:2014-03-10 Online:2014-03-10
Contact: Kui-tao

Abstract

Abstract: The surfacical tension of fluorocarbon surfactant FY-F501 was measured by the surface tension meter in aqueous solution at (20±0.1) ℃. The results show that the critical micelle concentration is 9×10-6 mol/L. The corrosion inhibition effect of FY-F501 on aluminum alloy in 100 mg/L chlorine dioxide was studied at (20±0.1) ℃ by static mass loss method. The data show that, the inhibition effect is optimal at the critical micelle concentration and the maximum inhibition efficiency can reaches 94.5%. Furthermore, the corrosion inhibition mechanism of the surfactant was studied using electrochemical method and SEM. The linear fit of the data of the static mass loss method shows that a single molecule adsorption layer is formed on the surface of the aluminum alloy. This helps to inhibit the corrosion reaction of the aluminum alloy activation and the adsorption follows the Langmuir adsorption model.

Key words: chlorine dioxide, gemini fluorocarbon surfactant, aluminum alloy, corrosion inhibition

CLC Number:

O647.1

GAO Jinlong, WU Haixia, ZHANG Congjing, WANG Kuitao*. Corrosion Inhibition Performance of Fluorocarbon Surfactant FY-F501 for Aluminum Alloy[J]. Chinese Journal of Applied Chemistry, DOI: 10.3724/SP.J.1095.2014.30246.

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Corrosion Inhibition Performance of Fluorocarbon Surfactant FY-F501 for Aluminum Alloy

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