期刊
PROGRESS IN ORGANIC COATINGS
卷 125, 期 -, 页码 137-145出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.porgcoat.2018.09.003
关键词
Fluorine free; Superhydrophobic; Corrosion protection; Silicone binder
资金
- Department of Science and Technology (DST), India [IF130877]
- Corrosion and Materials Protection division, Lead Acid Battery section
- Central Instrumentation Facility (CIF), CSIR-CECRI
We report the successful fabrication of fluorine free superhydrophobic coating involving silicone binder, pigments like nanosilica, nanotitania and magnesium silicate and aluminium stearate as additive. The pristine resin with no pigments and additives show hydrophobic behaviour with water contact angle (WCA) of 93.5 degrees and tilting angle (TA) of 60 degrees. The WCA increased to 152.5 degrees and TA to 20 degrees with incorporation of pigments and additives. The introduction of pigments/additives created micro/nano roughness through agglomeration of pigments used in the coating. The as prepared superhydrophobic coating also exhibited excellent corrosion resistance property without using any inhibitive / sacrificial pigments in it. To the best of our knowledge this is the first work towards preparation of superhydrophobic coating with excellent corrosion protection without fluoro compounds and inhibitive pigments.
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