Zhongguo Jianchuan Yanjiu (Jun 2023)

Preparation and static wetting characteristic analysis of silica-based wetting gradient surface

  • Hang WEI,
  • Wei DU,
  • Guanghua LI,
  • Peng DU,
  • Mingsheng LI,
  • Jun WEN,
  • Luo XIE,
  • Ying WANG,
  • Haibao HU

DOI
https://doi.org/10.19693/j.issn.1673-3185.02543
Journal volume & issue
Vol. 18, no. 3
pp. 205 – 211

Abstract

Read online

ObjectivesThe wetting gradient surface has potential application value in such fields as ship anti-fouling and submarine drag reduction, requiring further research on low-cost and low-complexity wetting gradient surface preparation technology.MethodsThe preparation and static wetting characteristics of a silica-based wetting gradient surface are analyzed using vapor deposition, alkali corrosion and a combination of both.ResultsThe contact angle using vapor deposition reaches 104.9°, with a largest range of about 23°; that using alkali corrosion reaches 80.2°, with a largest range of about 60°; and that using both methods reaches 102.1°, with a largest range of about 40°.ConclusionsThe results of this study can provide references for the preparation of functional surfaces for marine equipment.

Keywords