Constructing a superhydrophobic surface on polydimethylsiloxane via spin coating and vapor-liquid sol-gel process

Yu Ting Peng; Kuo Feng Lo; Yi Je Juang

doi:10.1021/la903646h

Constructing a superhydrophobic surface on polydimethylsiloxane via spin coating and vapor-liquid sol-gel process

Yu Ting Peng, Kuo Feng Lo, Yi Je Juang

Department of Chemical Engineering

Research output: Contribution to journal › Article › peer-review

50 Citations (Scopus)

Abstract

In this study, a superhydrophobic surface on polydimethylsiloxane (PDMS) substrate was constructed via the proposed vapor-liquid sol-gel process in conjunction with spin coating of dodecyltrichlorosilane (DTS). Unlike the conventional sol-gel process where the reaction takes place in the liquid phase, layers of silica (SiO₂) particles were formed through the reaction between the reactant spin-coated on the PDMS surface and vapor of the acid solution. This led to the SiO₂ particles inlaid on the PDMS surface. Followed by subsequent spin coating of DTS solution, the wrinkle-like structure was formed, and the static contact angle of the water droplet on the surface could reach 162° with 2° sliding angle and less than 5° contact angle hysteresis. The effect of layers of SiO₂ particles, concentrations of DTS solution and surface topography on superhydrophobicity of the surface is discussed.

Original language	English
Pages (from-to)	5167-5171
Number of pages	5
Journal	Langmuir
Volume	26
Issue number	7
DOIs	https://doi.org/10.1021/la903646h
Publication status	Published - 2010 Apr 6

All Science Journal Classification (ASJC) codes

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/la903646h

Cite this

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title = "Constructing a superhydrophobic surface on polydimethylsiloxane via spin coating and vapor-liquid sol-gel process",

abstract = "In this study, a superhydrophobic surface on polydimethylsiloxane (PDMS) substrate was constructed via the proposed vapor-liquid sol-gel process in conjunction with spin coating of dodecyltrichlorosilane (DTS). Unlike the conventional sol-gel process where the reaction takes place in the liquid phase, layers of silica (SiO2) particles were formed through the reaction between the reactant spin-coated on the PDMS surface and vapor of the acid solution. This led to the SiO2 particles inlaid on the PDMS surface. Followed by subsequent spin coating of DTS solution, the wrinkle-like structure was formed, and the static contact angle of the water droplet on the surface could reach 162° with 2° sliding angle and less than 5° contact angle hysteresis. The effect of layers of SiO2 particles, concentrations of DTS solution and surface topography on superhydrophobicity of the surface is discussed.",

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AU - Peng, Yu Ting

AU - Lo, Kuo Feng

AU - Juang, Yi Je

PY - 2010/4/6

Y1 - 2010/4/6

N2 - In this study, a superhydrophobic surface on polydimethylsiloxane (PDMS) substrate was constructed via the proposed vapor-liquid sol-gel process in conjunction with spin coating of dodecyltrichlorosilane (DTS). Unlike the conventional sol-gel process where the reaction takes place in the liquid phase, layers of silica (SiO2) particles were formed through the reaction between the reactant spin-coated on the PDMS surface and vapor of the acid solution. This led to the SiO2 particles inlaid on the PDMS surface. Followed by subsequent spin coating of DTS solution, the wrinkle-like structure was formed, and the static contact angle of the water droplet on the surface could reach 162° with 2° sliding angle and less than 5° contact angle hysteresis. The effect of layers of SiO2 particles, concentrations of DTS solution and surface topography on superhydrophobicity of the surface is discussed.

AB - In this study, a superhydrophobic surface on polydimethylsiloxane (PDMS) substrate was constructed via the proposed vapor-liquid sol-gel process in conjunction with spin coating of dodecyltrichlorosilane (DTS). Unlike the conventional sol-gel process where the reaction takes place in the liquid phase, layers of silica (SiO2) particles were formed through the reaction between the reactant spin-coated on the PDMS surface and vapor of the acid solution. This led to the SiO2 particles inlaid on the PDMS surface. Followed by subsequent spin coating of DTS solution, the wrinkle-like structure was formed, and the static contact angle of the water droplet on the surface could reach 162° with 2° sliding angle and less than 5° contact angle hysteresis. The effect of layers of SiO2 particles, concentrations of DTS solution and surface topography on superhydrophobicity of the surface is discussed.

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Constructing a superhydrophobic surface on polydimethylsiloxane via spin coating and vapor-liquid sol-gel process

Abstract

All Science Journal Classification (ASJC) codes

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