TY  - JOUR
AB  - Purpose Immersion is one of the key steps during the preparation of silane-based hybrid films, which has important effects on the performance of films after curing. In this paper, the formation process of Zr-doped silane film (i.e. the adsorption of silane and deposition of zirconium compounds) on carbon steel immersed in Zr(NO3)4/silane mixed solutions was investigated.Design/methodology/approach The method of in situ monitoring the open circuit potential of a two-electrode system, consisting of carbon steel and saturated calomel electrode, was used. The effects of immersion conditions (i.e. the concentration of Zr(NO3)4 and pH of Zr(NO3)4/silane mixed solution) on the open circuit potential were investigated in detail. Furthermore, the surface coverage rate of different cured films (i.e. Zr cured film, silane cured film and Zr/silane composite cured film) after curing on carbon steel was calculated according to the results of polarization curves. Electrochemical impedance spectroscopy (EIS) was used to study the self-healing property of Zr-doped silane cured film.Findings The results indicate that in Zr(NO3)4/silane mixed solutions, most zirconium compounds deposit on the surface of carbon steel at the initial immersing stage, then the adsorption of silane on the residual surface of carbon steel dominates the following immersing stage. EIS results show that the Zr-doped cured film has improved self-healing property.Originality/value First, the method of in situ monitoring the open-circuit potential of two-electrode system was applied to investigate the deposition of Zr and the adsorption of silane on carbon steel immersed in Zr(NO3)4/silane mixed solutions. Second, the formation process of Zr-doped silane film was proposed.
VL  - 64
IS  - 1
SN  - 0003-5599
DO  - 10.1108/ACMM-12-2015-1627
UR  - https://doi.org/10.1108/ACMM-12-2015-1627
AU  - Xian Xiaochao
AU  - Nai Chenglong
AU  - Li Lixin
AU  - Zhao Shuo
PY  - 2017
Y1  - 2017/01/01
TI  - The formation process of Zr-doped silane film on carbon steel during immersing in Zr(NO3)4/silane mixed solutions
T2  - Anti-Corrosion Methods and Materials
PB  - Emerald Publishing Limited
SP  - 1
EP  - 9
Y2  - 2024/09/19
ER  -