Wettability of microstructured Pyrex glass with hydrophobic and hydrophilic properties

Dong Ki Lee; Young Hak Cho; Jong Whi Lee; Min Soo Park

doi:10.1016/j.surfcoat.2017.04.022

Wettability of microstructured Pyrex glass with hydrophobic and hydrophilic properties

Dong Ki Lee, Young Hak Cho, Jong Whi Lee, Min Soo Park

Dept. of Mechanical System and Design Engineering

Seoul National University of Science and Technology (SNUST)

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

15 Scopus citations

Abstract

A grooved hybrid surface that has silane-coated surface (hydrophobic surface) on ridges and uncoated surface (hydrophilic surface) inside groove was fabricated on a Pyrex glass substrate through the laser-induced backside wet etching (LIBWE) process. The wettability characteristics of the grooved hybrid surface were evaluated from static contact angles (CAs) measured in parallel and orthogonal directions. With an increase in the width of the hydrophobic ridge, the CAs increased from 24° to 104° in the parallel direction. Consequently, the anisotropic wetting property of the fabricated hybrid surface was confirmed. Results of moisture condensation experiments indicated that moisture condensed rapidly in the hydrophilic grooves. Furthermore, the diffuse reflection of light was prevented when the groove was completely filled with water.

Original language	English
Pages (from-to)	213-218
Number of pages	6
Journal	Surface and Coatings Technology
Volume	319
DOIs	https://doi.org/10.1016/j.surfcoat.2017.04.022
State	Published - 15 Jun 2017

Keywords

Anisotropic wetting
Grooved hybrid surface
Hydrophilicity
Hydrophobicity
Laser-induced backside wet etching (LIBWE)
Wettability

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10.1016/j.surfcoat.2017.04.022

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title = "Wettability of microstructured Pyrex glass with hydrophobic and hydrophilic properties",

abstract = "A grooved hybrid surface that has silane-coated surface (hydrophobic surface) on ridges and uncoated surface (hydrophilic surface) inside groove was fabricated on a Pyrex glass substrate through the laser-induced backside wet etching (LIBWE) process. The wettability characteristics of the grooved hybrid surface were evaluated from static contact angles (CAs) measured in parallel and orthogonal directions. With an increase in the width of the hydrophobic ridge, the CAs increased from 24° to 104° in the parallel direction. Consequently, the anisotropic wetting property of the fabricated hybrid surface was confirmed. Results of moisture condensation experiments indicated that moisture condensed rapidly in the hydrophilic grooves. Furthermore, the diffuse reflection of light was prevented when the groove was completely filled with water.",

keywords = "Anisotropic wetting, Grooved hybrid surface, Hydrophilicity, Hydrophobicity, Laser-induced backside wet etching (LIBWE), Wettability",

author = "Lee, \{Dong Ki\} and Cho, \{Young Hak\} and Lee, \{Jong Whi\} and Park, \{Min Soo\}",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier B.V.",

year = "2017",

month = jun,

day = "15",

doi = "10.1016/j.surfcoat.2017.04.022",

language = "English",

volume = "319",

pages = "213--218",

journal = "Surface and Coatings Technology",

issn = "0257-8972",

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TY - JOUR

T1 - Wettability of microstructured Pyrex glass with hydrophobic and hydrophilic properties

AU - Lee, Dong Ki

AU - Cho, Young Hak

AU - Lee, Jong Whi

AU - Park, Min Soo

PY - 2017/6/15

Y1 - 2017/6/15

N2 - A grooved hybrid surface that has silane-coated surface (hydrophobic surface) on ridges and uncoated surface (hydrophilic surface) inside groove was fabricated on a Pyrex glass substrate through the laser-induced backside wet etching (LIBWE) process. The wettability characteristics of the grooved hybrid surface were evaluated from static contact angles (CAs) measured in parallel and orthogonal directions. With an increase in the width of the hydrophobic ridge, the CAs increased from 24° to 104° in the parallel direction. Consequently, the anisotropic wetting property of the fabricated hybrid surface was confirmed. Results of moisture condensation experiments indicated that moisture condensed rapidly in the hydrophilic grooves. Furthermore, the diffuse reflection of light was prevented when the groove was completely filled with water.

AB - A grooved hybrid surface that has silane-coated surface (hydrophobic surface) on ridges and uncoated surface (hydrophilic surface) inside groove was fabricated on a Pyrex glass substrate through the laser-induced backside wet etching (LIBWE) process. The wettability characteristics of the grooved hybrid surface were evaluated from static contact angles (CAs) measured in parallel and orthogonal directions. With an increase in the width of the hydrophobic ridge, the CAs increased from 24° to 104° in the parallel direction. Consequently, the anisotropic wetting property of the fabricated hybrid surface was confirmed. Results of moisture condensation experiments indicated that moisture condensed rapidly in the hydrophilic grooves. Furthermore, the diffuse reflection of light was prevented when the groove was completely filled with water.

KW - Anisotropic wetting

KW - Grooved hybrid surface

KW - Hydrophilicity

KW - Hydrophobicity

KW - Laser-induced backside wet etching (LIBWE)

KW - Wettability

UR - https://www.scopus.com/pages/publications/85017432824

U2 - 10.1016/j.surfcoat.2017.04.022

DO - 10.1016/j.surfcoat.2017.04.022

M3 - Article

AN - SCOPUS:85017432824

SN - 0257-8972

VL - 319

SP - 213

EP - 218

JO - Surface and Coatings Technology

JF - Surface and Coatings Technology

ER -

Wettability of microstructured Pyrex glass with hydrophobic and hydrophilic properties

Abstract

Keywords

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