Fabrication of a superhydrophobic and oleophobic PTFE membrane: An application to selective gas permeation

Eun Ji Park; Dae Han Kim; Ju Ha Lee; Seonggyun Ha; Changsik Song; Young Dok Kim

doi:10.1016/j.materresbull.2016.05.022

Fabrication of a superhydrophobic and oleophobic PTFE membrane: An application to selective gas permeation

Eun Ji Park
, Dae Han Kim
, Ju Ha Lee
, Seonggyun Ha
, Changsik Song
, Young Dok Kim

Department of Chemistry

Sungkyunkwan University

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

29 Scopus citations

Abstract

A superhydrophobic and oleophobic film was fabricated on polytetrafluoroethylene (PTFE) using SiO₂ nanoparticles and 1H,1H,2H,2H-perfluorooctyltrichlorosilane (FOTS). The surface of the bare PTFE sheet was first coated with SiO₂ nanoparticles by the dip-coating method, and FOTS was subsequently deposited on the SiO₂-coated PTFE by either dip-coating or vapor deposition. Both of the FOTS-coated PTFE samples prepared using either dip-coating or vapor deposition initially showed high repellence towards water and hexadecane droplets. The FOTS-PTFE prepared by vapor deposition gradually absorbed hexadecane. By contrast, the dip-coated FOTS-PTFE displayed a durable non-wetting property, even after exposure to acidic/basic solutions and UV light irradiation. Gas permeability of the prepared superhydrophobic and oleophobic PTFE sheets towards CO₂ and dimethyl methylphosphonate (DMMP) vapor was also determined. We suggest that our superhydrophobic and oleophobic membrane could be used as the shielding layer of a gas sensor, to repel various liquids and only allow transmission of gases.

Original language	English
Pages (from-to)	88-95
Number of pages	8
Journal	Materials Research Bulletin
Volume	83
DOIs	https://doi.org/10.1016/j.materresbull.2016.05.022
State	Published - 1 Nov 2016

Keywords

A. Multilayers
A. Surfaces
B. Sol-gel chemistry
C. Electron microscopy
D. Surface properties

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10.1016/j.materresbull.2016.05.022

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title = "Fabrication of a superhydrophobic and oleophobic PTFE membrane: An application to selective gas permeation",

abstract = "A superhydrophobic and oleophobic film was fabricated on polytetrafluoroethylene (PTFE) using SiO2 nanoparticles and 1H,1H,2H,2H-perfluorooctyltrichlorosilane (FOTS). The surface of the bare PTFE sheet was first coated with SiO2 nanoparticles by the dip-coating method, and FOTS was subsequently deposited on the SiO2-coated PTFE by either dip-coating or vapor deposition. Both of the FOTS-coated PTFE samples prepared using either dip-coating or vapor deposition initially showed high repellence towards water and hexadecane droplets. The FOTS-PTFE prepared by vapor deposition gradually absorbed hexadecane. By contrast, the dip-coated FOTS-PTFE displayed a durable non-wetting property, even after exposure to acidic/basic solutions and UV light irradiation. Gas permeability of the prepared superhydrophobic and oleophobic PTFE sheets towards CO2 and dimethyl methylphosphonate (DMMP) vapor was also determined. We suggest that our superhydrophobic and oleophobic membrane could be used as the shielding layer of a gas sensor, to repel various liquids and only allow transmission of gases.",

keywords = "A. Multilayers, A. Surfaces, B. Sol-gel chemistry, C. Electron microscopy, D. Surface properties",

author = "Park, \{Eun Ji\} and Kim, \{Dae Han\} and Lee, \{Ju Ha\} and Seonggyun Ha and Changsik Song and Kim, \{Young Dok\}",

year = "2016",

month = nov,

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doi = "10.1016/j.materresbull.2016.05.022",

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T1 - Fabrication of a superhydrophobic and oleophobic PTFE membrane

T2 - An application to selective gas permeation

AU - Park, Eun Ji

AU - Kim, Dae Han

AU - Lee, Ju Ha

AU - Ha, Seonggyun

AU - Song, Changsik

AU - Kim, Young Dok

PY - 2016/11/1

Y1 - 2016/11/1

N2 - A superhydrophobic and oleophobic film was fabricated on polytetrafluoroethylene (PTFE) using SiO2 nanoparticles and 1H,1H,2H,2H-perfluorooctyltrichlorosilane (FOTS). The surface of the bare PTFE sheet was first coated with SiO2 nanoparticles by the dip-coating method, and FOTS was subsequently deposited on the SiO2-coated PTFE by either dip-coating or vapor deposition. Both of the FOTS-coated PTFE samples prepared using either dip-coating or vapor deposition initially showed high repellence towards water and hexadecane droplets. The FOTS-PTFE prepared by vapor deposition gradually absorbed hexadecane. By contrast, the dip-coated FOTS-PTFE displayed a durable non-wetting property, even after exposure to acidic/basic solutions and UV light irradiation. Gas permeability of the prepared superhydrophobic and oleophobic PTFE sheets towards CO2 and dimethyl methylphosphonate (DMMP) vapor was also determined. We suggest that our superhydrophobic and oleophobic membrane could be used as the shielding layer of a gas sensor, to repel various liquids and only allow transmission of gases.

AB - A superhydrophobic and oleophobic film was fabricated on polytetrafluoroethylene (PTFE) using SiO2 nanoparticles and 1H,1H,2H,2H-perfluorooctyltrichlorosilane (FOTS). The surface of the bare PTFE sheet was first coated with SiO2 nanoparticles by the dip-coating method, and FOTS was subsequently deposited on the SiO2-coated PTFE by either dip-coating or vapor deposition. Both of the FOTS-coated PTFE samples prepared using either dip-coating or vapor deposition initially showed high repellence towards water and hexadecane droplets. The FOTS-PTFE prepared by vapor deposition gradually absorbed hexadecane. By contrast, the dip-coated FOTS-PTFE displayed a durable non-wetting property, even after exposure to acidic/basic solutions and UV light irradiation. Gas permeability of the prepared superhydrophobic and oleophobic PTFE sheets towards CO2 and dimethyl methylphosphonate (DMMP) vapor was also determined. We suggest that our superhydrophobic and oleophobic membrane could be used as the shielding layer of a gas sensor, to repel various liquids and only allow transmission of gases.

KW - A. Multilayers

KW - A. Surfaces

KW - B. Sol-gel chemistry

KW - C. Electron microscopy

KW - D. Surface properties

UR - https://www.scopus.com/pages/publications/84974571276

U2 - 10.1016/j.materresbull.2016.05.022

DO - 10.1016/j.materresbull.2016.05.022

M3 - Article

AN - SCOPUS:84974571276

SN - 0025-5408

VL - 83

SP - 88

EP - 95

JO - Materials Research Bulletin

JF - Materials Research Bulletin

ER -

Fabrication of a superhydrophobic and oleophobic PTFE membrane: An application to selective gas permeation

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Keywords

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