Formation of superhydrophobic poly(dimethysiloxane) by ultrafast laser-induced surface modification

Optics Express
Tae Oh YoonYoun-Il Park

Abstract

The formation of hemispherical nanostructures and microscaled papilla by ultrafast laser irradiation was found to be a potential method to generate superhydrophbic surface of synthetic polymers. Irradiation of femtosecond laser creates roughened poly(dimethylsiloxane) (PDMS) surface in nano- and microscales, of which topography fairly well imitate a Lotus leaf in nature. The modified surface showed superhydrophobicity with a contact angle higher than 170 degrees as well as sliding angle less than 3 degrees. We further demonstrated that negative replica of the processed PDMS surface exhibit large contact angle hysteresis with a sliding angle of 90 degrees while the positive replica maintains superhydrophobicity.

References

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Citations

Jul 12, 2016·Langmuir : the ACS Journal of Surfaces and Colloids·Ana B LópezJosé M Asua
Jul 20, 2013·ACS Applied Materials & Interfaces·Feng ChenXun Hou
Sep 15, 2015·Optics Express·Heh-Young MoonSae Chae Jeoung
Aug 2, 2016·Soft Matter·Ana B LópezJosé M Asua
Dec 31, 2019·Langmuir : the ACS Journal of Surfaces and Colloids·Mihaela MateescuLaurent Vonna
Sep 30, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Cheng SunHua Xu
Mar 10, 2009·Langmuir : the ACS Journal of Surfaces and Colloids·Anne-Marie KietzigPeter Englezos
Dec 15, 2010·Langmuir : the ACS Journal of Surfaces and Colloids·Feng ChenXun Hou
Sep 29, 2021·ACS Applied Materials & Interfaces·Wangyang ZhangDuo Liu

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