Preparation of superhydrophobic coatings on zinc as effective corrosion barriers
H Liu, S Szunerits, W Xu… - ACS applied materials & …, 2009 - ACS Publications
H Liu, S Szunerits, W Xu, R Boukherroub
ACS applied materials & interfaces, 2009•ACS PublicationsStable superhydrophobic films with a contact angle of 151±2° were prepared on zinc
substrates by a simple immersion technique into a methanol solution of hydrolyzed 1 H, 1 H,
2 H, 2 H-perfluorooctyltrichlorosilane [CF3 (CF2) 5 (CH2) 2SiCl3, PFTS] for 5 days at room
temperature followed by a short annealing at 130° C in air for 1 h. The superhydrophobic
film provides an effective corrosion-resistant coating for the zinc interface when immersed in
an aqueous solution of sodium chloride (3% NaCl) for up to 29 days. The corrosion process …
substrates by a simple immersion technique into a methanol solution of hydrolyzed 1 H, 1 H,
2 H, 2 H-perfluorooctyltrichlorosilane [CF3 (CF2) 5 (CH2) 2SiCl3, PFTS] for 5 days at room
temperature followed by a short annealing at 130° C in air for 1 h. The superhydrophobic
film provides an effective corrosion-resistant coating for the zinc interface when immersed in
an aqueous solution of sodium chloride (3% NaCl) for up to 29 days. The corrosion process …
Stable superhydrophobic films with a contact angle of 151 ± 2° were prepared on zinc substrates by a simple immersion technique into a methanol solution of hydrolyzed 1H,1H,2H,2H-perfluorooctyltrichlorosilane [CF3(CF2)5(CH2)2SiCl3, PFTS] for 5 days at room temperature followed by a short annealing at 130 °C in air for 1 h. The superhydrophobic film provides an effective corrosion-resistant coating for the zinc interface when immersed in an aqueous solution of sodium chloride (3% NaCl) for up to 29 days. The corrosion process was investigated by following the change of the water contact angle over time and by electrochemical means. The results are compared to those of unprotected zinc interfaces.
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