Spreading of Water Droplets on Cellulose-Based Papers: the Effect of Back-Surface Coating

Ching Bin Lin; Han Sen Chang; Yulin Zhang; Fuqian Yang; Sanboh Lee

doi:10.1021/ACS.LANGMUIR.0C02991

Spreading of Water Droplets on Cellulose-Based Papers: the Effect of Back-Surface Coating

Ching Bin Lin
, Han Sen Chang
, Yulin Zhang
, Fuqian Yang
, Sanboh Lee

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

7 Scopus citations

Abstract

Regulation of wetting and spreading of liquid on porous material plays an important role in a variety of applications, such as waterproofing, anti-icing, antioxidation, self-cleaning, etc. In this work, we reveal the role of back-surface coating with superhydrophobic nanoparticles in controlling the spreading of water droplets on cellulose-based papers. A layer of superhydrophobic polydivinylbenzene (PDVB) nanoparticles is spin-coated on the back surface of different types of papers. The spreading of a water droplet on the top, uncoated surface is dependent on the size of the PDVB nanoparticles in the coating. Using a relationship derived from Darcy’s law, we observe that the energy barrier for the spreading of water droplets on three types of papers (heavy-weight, light-weight, and slight-weight papers) decreases with the decrease of the nanoparticle size in the back-surface coating. The spreading of the water droplet is dependent on the porous structure, permeability, and compressibility of the papers. The method presented in this work provides a feasible approach to use the back-surface coating to control the wettability of papers.

Original language	English
Pages (from-to)	376-384
Number of pages	9
Journal	Langmuir
Volume	37
Issue number	1
DOIs	https://doi.org/10.1021/ACS.LANGMUIR.0C02991
State	Published - Jan 12 2021

Bibliographical note

Publisher Copyright:
© 2021 American Chemical Society.

Funding

S.L. would like to thank the Ministry of Science and Technology, Taiwan, for the financial support. The authors are also indebted to the Taiwan Instrument Research Institute for providing instruments.

Funders
Ministry of Science and Technology, Taiwan

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Surfaces and Interfaces
Spectroscopy
Electrochemistry

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10.1021/ACS.LANGMUIR.0C02991

Cite this

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abstract = "Regulation of wetting and spreading of liquid on porous material plays an important role in a variety of applications, such as waterproofing, anti-icing, antioxidation, self-cleaning, etc. In this work, we reveal the role of back-surface coating with superhydrophobic nanoparticles in controlling the spreading of water droplets on cellulose-based papers. A layer of superhydrophobic polydivinylbenzene (PDVB) nanoparticles is spin-coated on the back surface of different types of papers. The spreading of a water droplet on the top, uncoated surface is dependent on the size of the PDVB nanoparticles in the coating. Using a relationship derived from Darcy{\textquoteright}s law, we observe that the energy barrier for the spreading of water droplets on three types of papers (heavy-weight, light-weight, and slight-weight papers) decreases with the decrease of the nanoparticle size in the back-surface coating. The spreading of the water droplet is dependent on the porous structure, permeability, and compressibility of the papers. The method presented in this work provides a feasible approach to use the back-surface coating to control the wettability of papers.",

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Spreading of Water Droplets on Cellulose-Based Papers: the Effect of Back-Surface Coating

Abstract

Bibliographical note

Funding

ASJC Scopus subject areas

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