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

Annaso B. Gurav, Qingfeng Xu, Sanjay S. Latthe, R. S. Vhatkar, Shanhu Liu, Hyun Yoon, Sam S. Yoon

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)

Abstract

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°±2° and roll-off angle of 8°±1° 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.

Original languageEnglish
Pages (from-to)3017-3023
Number of pages7
JournalCeramics International
Volume41
Issue number2
DOIs
Publication statusPublished - 2015 Mar 1

Bibliographical note

Funding Information:
Mr. Annaso B. Gurav is highly grateful to the Council of Scientific and Industrial Research-Human Resource Development Group ( CSIR-HRDG ), New Delhi, Government of India , for providing financial support by awarding the Senior Research Fellowship (SRF) [File no. 09/816(0036)/2012-EMR-I , Dated 30/03/2012]. He also would like to express his gratitude for extending the SRF for a third year. We greatly appreciate the support of the National Natural Science Foundation of China ( 21101056 , 21105021 ). This work was partly supported by KETEP (No. 20133030010890 ), NRF-2013R1A2A2A05005589 , and NRF-2013M3A6B1078879 .

Publisher Copyright:
© 2014 Elsevier Ltd and Techna Group S.r.l. All rights reserved.

Keywords

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

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Process Chemistry and Technology
  • Surfaces, Coatings and Films
  • Materials Chemistry

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