Switchable water absorption of paper via liquid flame spray nanoparticle coating

Hannu Teisala; Mikko Tuominen; Janne Haapanen; Mikko Aromaa; Milena Stepien; Jyrki M. Mäkelä; Jarkko J. Saarinen; Martti Toivakka; Jurkka Kuusipalo

doi:10.1007/s10570-014-0223-5

Switchable water absorption of paper via liquid flame spray nanoparticle coating

Hannu Teisala^*
, Mikko Tuominen
, Janne Haapanen
, Mikko Aromaa
, Milena Stepien
, Jyrki M. Mäkelä
, Jarkko J. Saarinen
, Martti Toivakka
, Jurkka Kuusipalo

^*Corresponding author for this work

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

7 Citations (Scopus)

Abstract

Surface wetting/anti-wetting and liquid absorption are relevant properties of many porous solids including paper and other cellulose-based materials. Here we demonstrate how surface wetting by water and water absorption of commercially available kraft paper can be altered by thin nanoparticle coatings fabricated by liquid flame spray in facile and continuous one-step process. Surface wettability and absorption properties of paper increased with silica and decreased with titania (TiO2) nanoparticle coatings. Moreover, the water-repellent (superhydrophobic) TiO2 nanoparticle coated paper could be switched to superhydrophilic and water absorbing by ultraviolet illumination. The experiments revealed that although surface wetting and liquid absorption of nanoparticle coated paper are strongly related to each other, they are two distinct phenomena which do not necessarily correlate. We propose wetting regimes on the nanoparticle coated paper samples on the basis of the experimental observations.

Translated title of the contribution	Switchable water absorption of paper via liquid flame spray nanoparticle coating
Original language	English
Pages (from-to)	2033-2043
Number of pages	11
Journal	Cellulose
Volume	21
Issue number	3
DOIs	https://doi.org/10.1007/s10570-014-0223-5
Publication status	Published - Jun 2014
Publication type	A1 Journal article-refereed

Funding

Tekes (Finnish Funding Agency for Technology and Innovation) is acknowledged for the financial support of this study. The work was carried out in the Functional Materials 2007-2013 programme under the project called Liquid flame spray nanocoating for flexible roll-to-roll web materials. The authors also thank Beneq, Stora Enso, and UPM-Kymmene for their contributions. The authors are grateful to Mr. Alvi Sivula (TUT, Department of Materials Science) for fabricating the suitable Cobb equipment, and to Dr. Mari Honkanen (TUT, Department of Materials Science) for the SEM images.

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10.1007/s10570-014-0223-5

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title = "Switchable water absorption of paper via liquid flame spray nanoparticle coating",

abstract = "Surface wetting/anti-wetting and liquid absorption are relevant properties of many porous solids including paper and other cellulose-based materials. Here we demonstrate how surface wetting by water and water absorption of commercially available kraft paper can be altered by thin nanoparticle coatings fabricated by liquid flame spray in facile and continuous one-step process. Surface wettability and absorption properties of paper increased with silica and decreased with titania (TiO2) nanoparticle coatings. Moreover, the water-repellent (superhydrophobic) TiO2 nanoparticle coated paper could be switched to superhydrophilic and water absorbing by ultraviolet illumination. The experiments revealed that although surface wetting and liquid absorption of nanoparticle coated paper are strongly related to each other, they are two distinct phenomena which do not necessarily correlate. We propose wetting regimes on the nanoparticle coated paper samples on the basis of the experimental observations.",

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AU - Teisala, Hannu

AU - Tuominen, Mikko

AU - Haapanen, Janne

AU - Aromaa, Mikko

AU - Stepien, Milena

AU - Mäkelä, Jyrki M.

AU - Saarinen, Jarkko J.

AU - Toivakka, Martti

AU - Kuusipalo, Jurkka

N1 - Contribution: organisation=mol,FACT1=0.5 Contribution: organisation=fys,FACT2=0.5 Portfolio EDEND: 2014-08-06 Publisher name: Springer Netherlands; Cellulose Division

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N2 - Surface wetting/anti-wetting and liquid absorption are relevant properties of many porous solids including paper and other cellulose-based materials. Here we demonstrate how surface wetting by water and water absorption of commercially available kraft paper can be altered by thin nanoparticle coatings fabricated by liquid flame spray in facile and continuous one-step process. Surface wettability and absorption properties of paper increased with silica and decreased with titania (TiO2) nanoparticle coatings. Moreover, the water-repellent (superhydrophobic) TiO2 nanoparticle coated paper could be switched to superhydrophilic and water absorbing by ultraviolet illumination. The experiments revealed that although surface wetting and liquid absorption of nanoparticle coated paper are strongly related to each other, they are two distinct phenomena which do not necessarily correlate. We propose wetting regimes on the nanoparticle coated paper samples on the basis of the experimental observations.

AB - Surface wetting/anti-wetting and liquid absorption are relevant properties of many porous solids including paper and other cellulose-based materials. Here we demonstrate how surface wetting by water and water absorption of commercially available kraft paper can be altered by thin nanoparticle coatings fabricated by liquid flame spray in facile and continuous one-step process. Surface wettability and absorption properties of paper increased with silica and decreased with titania (TiO2) nanoparticle coatings. Moreover, the water-repellent (superhydrophobic) TiO2 nanoparticle coated paper could be switched to superhydrophilic and water absorbing by ultraviolet illumination. The experiments revealed that although surface wetting and liquid absorption of nanoparticle coated paper are strongly related to each other, they are two distinct phenomena which do not necessarily correlate. We propose wetting regimes on the nanoparticle coated paper samples on the basis of the experimental observations.

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SP - 2033

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JO - Cellulose

JF - Cellulose

IS - 3

ER -

Switchable water absorption of paper via liquid flame spray nanoparticle coating

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