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Proceedings Paper

Fabrication and hydrophobic characteristics of micro / nanostructures on polydimethylsiloxane surface prepared by picosecond laser
Author(s): Wang Bin; Shiyun Dong; Shixing Yan; Xiao Gang; Zhiwei Xie
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Paper Abstract

Picosecond laser has ultrashort pulse width and ultrastrong peak power, which makes it widely used in the field of micro-nanoscale fabrication. polydimethylsiloxane (PDMS) is a typical silicone elastomer with good hydrophobicity. In order to further improve the hydrophobicity of PDMS, the picosecond laser was used to fabricate a grid-like microstructure on the surface of PDMS, and the relationship between hydrophobicity of PDMS with surface microstructure and laser processing parameters, such as processing times and cell spacing was studied. The results show that: compared with the unprocessed PDMS, the presence of surface microstructure significantly improved the hydrophobicity of PDMS. When the number of processing is constant, the hydrophobicity of PDMS decreases with the increase of cell spacing. However, when the cell spacing is fixed, the hydrophobicity of PDMS first increases and then decreases with the increase of processing times. In particular, when the times of laser processing is 6 and the cell spacing is 50μm, the contact angle of PDMS increased from 113° to 154°, which reached the level of superhydrophobic.

Paper Details

Date Published: 5 March 2018
PDF: 7 pages
Proc. SPIE 10710, Young Scientists Forum 2017, 1071046 (5 March 2018); doi: 10.1117/12.2317668
Show Author Affiliations
Wang Bin, Academy of Armored Force Engineering (China)
Shiyun Dong, Academy of Armored Force Engineering (China)
Shixing Yan, Academy of Armored Force Engineering (China)
Xiao Gang, Academy of Armored Force Engineering (China)
Zhiwei Xie, Academy of Armored Force Engineering (China)


Published in SPIE Proceedings Vol. 10710:
Young Scientists Forum 2017
Songlin Zhuang; Junhao Chu; Jian-Wei Pan, Editor(s)

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