TY  - JOUR
AB  - Purpose– The purpose of this paper is to study the compound effect between silane and cerium salts in the passivation process of chemical conversion treatment of zinc.Design/methodology/approach– Chemical conversion treatment using 3‐Glycidoxypropyltrimethoxysilane on zinc is investigated as an alternative treatment to chromate conversion. The surface chemistry of the silane‐treated samples is investigated with mass change measurements, polarization curves, electrochemical impedance spectroscopy (EIS) and the salt spray tests (SST). The surface morphology of samples was studied using a scanning electron microscope.Findings– The polarization curves, EIS and SST data are in agreement. On the surface of zinc, the silane formed a compound with the cerium, thus enhancing the adhesion and corrosion resistance of the polymer film.Originality/value– There have been few reports on the compound effects of silanes and cerium salts in the passivation process. The mechanism of this compound effect may be due to the ability of Ce3 + ions to gain access to the interface through tiny cracks or micropores in the cross‐linking structure of GPS polymer films on zinc, and the subsequent oxidation of Ce3 + to Ce4 + by H2O2 may result in a barrier effect between the electrolyte and the metallic substrate.
VL  - 56
IS  - 4
SN  - 0003-5599
DO  - 10.1108/00035590910969356
UR  - https://doi.org/10.1108/00035590910969356
AU  - Fang Da‐jing
AU  - Mao Xu‐hui
AU  - Zhang Ye‐ming
AU  - Chen Zhi‐liang
AU  - Liu Min
AU  - Gan Fu‐xing
PY  - 2009
Y1  - 2009/01/01
TI  - Preparation of non‐chromium polymer films on zinc for corrosion protection due to a compound effect between silane and cerium salt
T2  - Anti-Corrosion Methods and Materials
PB  - Emerald Group Publishing Limited
SP  - 226
EP  - 231
Y2  - 2024/04/25
ER  -