Superhydrophilic stainless steel via fast treatment with atmospheric-pressure Ar/N₂ microwave plasma jet

Authors

Tracy Estella Tuballa National Institute of Physics, University of the Philippines Diliman
Ma. Camille Lacdan National Institute of Physics, University of the Philippines Diliman
Joey Kim`` Soriano National Institute of Physics, University of the Philippines Diliman
Julie Anne Ting National Institute of Physics, University of the Philippines Diliman
Henry Lee National Institute of Physics, University of the Philippines Diliman
Leo Mendel Rosario National Institute of Physics, University of the Philippines Diliman
Henry Ramos National Institute of Physics, University of the Philippines Diliman
Roy Tumlos National Institute of Physics, University of the Philippines Diliman

Abstract

The wettability of stainless steel was enhanced using an atmospheric-pressure microwave plasma jet. The samples were treated at a microwave power of 600 W, treatment times of 5-50 s, and Ar and N₂ gas flow rates of 8 and 0.5 lpm, respectively. All of the samples treated with Ar/N₂ plasma jet exhibited superhydrophilic behavior at any discharge condition as compared to Ar plasma jet. The lowest contact angle achieved for the Ar/N₂ plasma jet was 2.69^o for a treatment time of just 10 s. This is clearly more hydrophilic than the lowest measured contact angles for the untreated (64.4^o) and Ar plasma treated (15.31^o) samples. Moreover, for a longer aging time of 1-5 days, gradual decrease in the hydrophilicity of the treated samples was also observed.

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Issue

2011: Proceedings of the 29th Samahang Pisika ng Pilipinas National Physics Congress

Article ID

SPP2011-PB-43

Section

Poster Session PB

Published

2011-10-24

How to Cite

[1]

TE Tuballa, MC Lacdan, JK Soriano, JA Ting, H Lee, LM Rosario, H Ramos, and R Tumlos, Superhydrophilic stainless steel via fast treatment with atmospheric-pressure Ar/N2 microwave plasma jet, Proceedings of the Samahang Pisika ng Pilipinas 29, SPP2011-PB-43 (2011). URL: https://proceedings.spp-online.org/article/view/SPP2011-PB-43.