Superhydrophobic coatings prepared from methyl-modified silica particles using simple dip-coating method

作者：Gurav, Annaso B.; Xu, Qingfeng; Latthe, Sanjay S.; Vhatkar, R. S.; Liu, Shanhu^*; Yoon, Hyun; Yoon, Sam S.

来源：Ceramics International, 2015, 41(2): 3017-3023.

DOI：10.1016/j.ceramint.2014.10.137

• Superhydrophobic
• Dip coating
• Silica
• Interface
• Self-cleaning

A simple and time-saving approach for preparing self-cleaning superhydrophobic silica coatings using a dip-coating technique is reported in this study. Commercially available silica particles were modified with methyl groups using methyltrichlorosilane as a modifying agent. By adopting a multi-layer deposition process, a superhydrophobic silica coating with a water contact angle of 153 degrees +/- 2 degrees and roll-off angle of 8 degrees +/- 1 degrees was obtained. The prepared silica coating exhibited excellent self-cleaning performance; moreover, it was able to maintain superhydrophobicity under the impact of a water jet. This method could be an effective strategy for fabricating self-cleaning superhydrophobic surfaces for promising industrial applications.

• 出版日期2015-3
• 单位河南大学