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Fabrication of super-hydrophobic surface on stainless steel using chemical etching method

  • Ministry of Education of the People's Republic of China
  • Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

Superhydrophobic surface have many applications such as drag reduction in the micro-electromechanical systems. A novel method of fabricating superhydrophobic surface is proposed using the simple wet chemical etching in this paper. Firstly, the surface of steel disc is polished by abrasive paper and then treated with chemical etching. Secondly, the surface of steel is modified with 1H,1H,2H,2H-Perfluorooctyltrimethoxysilane. The superhydrophobic surface was obtained on the stainless steel surface. Finally, the effects of the etching time and etching solution concentration were analyzed to the superhydrophobic performance. The experimentation results show that superhydrophobic performance is the best when the HCl concentration is 2mol/L, the etching time is 20 minute respectively. The water contact angle (CA) of the rotor surface is 152°. The water droplets are hardly able to stick to the steel surface.

Original languageEnglish
Title of host publicationMicro-Nano Technology XIV
PublisherTrans Tech Publications Ltd
Pages33-38
Number of pages6
ISBN (Print)9783037857397
DOIs
StatePublished - 2013
Event14th Annual Conference and the 3rd International Conference of the Chinese Society of Micro-Nano Technology, CSMNT 2012 - Hangzhou, China
Duration: 4 Nov 20127 Nov 2012

Publication series

NameKey Engineering Materials
Volume562-565
ISSN (Print)1013-9826
ISSN (Electronic)1662-9795

Conference

Conference14th Annual Conference and the 3rd International Conference of the Chinese Society of Micro-Nano Technology, CSMNT 2012
Country/TerritoryChina
CityHangzhou
Period4/11/127/11/12

Keywords

  • Chemical etching
  • Contact angle
  • Gyroscope
  • Stainless stee
  • Superhydrophobic

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