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

Authors

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