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ANTICORROSION AND REPAIR BEHAVIOR OF REC–SiO2 SILANE FILM ON CARBON STEEL

Author

Listed:
  • JIABIN TANG

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • YIHE YAO

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • MANLI GUO

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • JIBO JIANG

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • HAISHAN CONG

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • YUKAI CHEN

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • YAOXIN SUN

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • YUE KONG

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

  • SHENG HAN

    (School of Chemical and Environmental Engineering, Shanghai Institute of Technology, Haiquan Road 100, Shanghai 201418, P. R. China)

Abstract

The synergistic effect of Ce3+ and SiO2 nanoparticles (NPs) composite silane film on the corrosion resistance of carbon steel was researched. The preparation method of silane film is mainly hydrolysis of bis-1,2-(triethoxysilyl)ethane (BTSE) and 3-glycidoxypropyltrimethoxysilane (KH-560) under acidic conditions and condensation reaction. EDX and SEM were employed to analyze the element distribution and morphological characteristics of the coating, which confirmed the coatings were crack-free and even distribution of surface elements. The chemical bond structure characteristics of the silane film on carbon steel were analyzed by XPS, and compared with the silane film after ultrasound. It proved the bonding force of the silane film. The best corrosion current density of the silane film containing cerium is 4.65 μAcm−2. The Rct obtained by simulating the corrosion circuit through Zsimpwin software is 22.02kΩcm−2. On this basis, by adding different concentrations of SiO2 NPs, the corrosion current density can reach a minimum of 0.70 μAcm−2. The simulated polarization curve Rct was 65.13kΩcm−2. In the long-term open-circuit potential test, the potential of the silane film containing rare earth cerium increased to 38mV at a certain stage, which proves the self-healing performance of the film.

Suggested Citation

  • Jiabin Tang & Yihe Yao & Manli Guo & Jibo Jiang & Haishan Cong & Yukai Chen & Yaoxin Sun & Yue Kong & Sheng Han, 2021. "ANTICORROSION AND REPAIR BEHAVIOR OF REC–SiO2 SILANE FILM ON CARBON STEEL," Surface Review and Letters (SRL), World Scientific Publishing Co. Pte. Ltd., vol. 28(11), pages 1-9, November.
    • Handle: RePEc:wsi:srlxxx:v:28:y:2021:i:11:n:s0218625x21500980
    DOI: 10.1142/S0218625X21500980
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