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Corrosion resistance conferred by superhydrophobic fluorinated polyacrylate–silica composite coatings on cold‐rolled steel
Author(s) -
Weng ChangJian,
Peng ChihWei,
Chang ChiHao,
Chang YaHan,
Yeh JuiMing
Publication year - 2012
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.36380
Subject(s) - corrosion , materials science , coating , contact angle , electrochemistry , composite number , composite material , electrolyte , aqueous solution , metallurgy , chemical engineering , electrode , chemistry , organic chemistry , engineering
The superhydrophobic surface (SHS) applied for corrosion protection in this study was prepared from an organic fluorinated polyacrylate incorporated with methyltriethoxysilane (MTES)‐based silsesquioxanes spheres. The SHS, with a contact angle of about 153.2°, was coated onto the surface of cold‐rolled steel (CRS) with spin‐coating technology. The coating materials applied as anticorrosive coatings were based on a series of electrochemical corrosion‐protection measurements in saline conditions. The SHS coating on CRS was found to provide superior corrosion protection to that of the hydrophobic organic coating in a series of electrochemical measurements in 3.5 wt % aqueous NaCl electrolyte. This form of coating could also provide better corrosion protection to coated CRS substrates and could serve as an effective barrier against aggressive species. © 2012 Wiley Periodicals, Inc. J Appl Polym Sci, 2012