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Proceedings Paper

Super hydrophobic surface of polytetrafluoroethylene fabricated by picosecond laser and phenomenon of total internal reflection underwater
Author(s): Yijian Jiang; Wenshen Cao; Yan Zhao; Yan Wu; Lingfei Ji
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Paper Abstract

A groove-shaped array with average 25 μm interval, 25 μm wall thickness, 75 μm depth and a columnar array with average 30 μm side length, 25 μm interval, 43 μm depth are processed by 1064 nm picosecond laser on polytetrafluoroethylene (PTFE) surface at room temperature. The water contact angle of modified PTFE surface can reach 167°, which show super hydrophobic surface of PTFE is prepared. It is observed super hydrophobic surface reflects metal luster underwater through the glassware when super hydrophobic PTFE entirely immerses in pure water. The experiment conducts super hydrophobic surface will enhance intensity of reflection of visible light underwater, which is due to total internal reflection of super hydrophobic surface und erwater.

Paper Details

Date Published: 12 March 2015
PDF: 8 pages
Proc. SPIE 9351, Laser-based Micro- and Nanoprocessing IX, 93511J (12 March 2015); doi: 10.1117/12.2078425
Show Author Affiliations
Yijian Jiang, Beijing Univ. of Technology (China)
Wenshen Cao, Beijing Univ. of Technology (China)
Yan Zhao, Beijing Univ. of Technology (China)
Yan Wu, Beijing Univ. of Technology (China)
Lingfei Ji, Beijing Univ. of Technology (China)

Published in SPIE Proceedings Vol. 9351:
Laser-based Micro- and Nanoprocessing IX
Udo Klotzbach; Kunihiko Washio; Craig B. Arnold, Editor(s)

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