Binary TiO₂/SiO₂ nanoparticle coating for controlling the wetting properties of paperboard

J. Haapanen; M. Aromaa; H. Teisala; M. Tuominen; Milena Stepien; Jarkko Saarinen; M. Heikkilä; Martti Toivakka; J. Kuusipalo; JM Mäkelä

doi:10.1016/j.matchemphys.2014.10.011

Binary TiO₂/SiO₂ nanoparticle coating for controlling the wetting properties of paperboard

J. Haapanen, M. Aromaa, H. Teisala, M. Tuominen, Milena Stepien, Jarkko Saarinen, M. Heikkilä, Martti Toivakka, J. Kuusipalo, JM Mäkelä

Laboratory of Natural Materials Technology

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

27 Citations (Scopus)

Abstract

We introduce a flame based aerosol method to fabricate thin films consisting of binary TiO2/SiO2 nanoparticles deposited directly from the flame onto the paperboard. Nanocoatings were prepared with Liquid Flame Spray (LFS) in a roll-to-roll process with the line speed of 50 m/min. Surface wetting behavior of nanocoated paperboard was studied for different Ti/Si ratios in the precursor, affecting TiO2/ SiO2 ratio in the coating. Wettability could be adjusted to practically any water contact angle between 10 and 1600 by setting the Ti/Si ratio in the liquid precursor. Structure of the two component nanocoating was analysed with FE-SEM, TEM, EDS, XPS and XRD. The porous thin film coating was concluded to consist of ca. 10 nm sized mixed oxide nanoparticles with segregated TiO2 and SiO2 phases. Accumulation of carbonaceous compounds on the surface was seen to be almost linearly dependent on the Ti/Si ratio, indicating of each species being exposed in corresponding amount. However, wetting of the surface was observed to follow merely an S-shaped curve, caused by the roughness of the nanocoated surface. Reasons for the observed superhydrophobicity and superhydrophilicity of these binary nanocoatings on paperboard are discussed.

Original language	Undefined/Unknown
Pages (from-to)	230–237
Number of pages	8
Journal	Materials Chemistry and Physics
Volume	149-150
DOIs	https://doi.org/10.1016/j.matchemphys.2014.10.011
Publication status	Published - 2015
MoE publication type	A1 Journal article-refereed

Keywords

Coatings
Composite materials
Nanostructures
Surfaces
Thin films

Access to Document

10.1016/j.matchemphys.2014.10.011

Cite this

@article{e0aa8377916845b48c1316c2f4618d03,

title = "Binary TiO₂/SiO₂ nanoparticle coating for controlling the wetting properties of paperboard",

abstract = "We introduce a flame based aerosol method to fabricate thin films consisting of binary TiO2/SiO2 nanoparticles deposited directly from the flame onto the paperboard. Nanocoatings were prepared with Liquid Flame Spray (LFS) in a roll-to-roll process with the line speed of 50 m/min. Surface wetting behavior of nanocoated paperboard was studied for different Ti/Si ratios in the precursor, affecting TiO2/ SiO2 ratio in the coating. Wettability could be adjusted to practically any water contact angle between 10 and 1600 by setting the Ti/Si ratio in the liquid precursor. Structure of the two component nanocoating was analysed with FE-SEM, TEM, EDS, XPS and XRD. The porous thin film coating was concluded to consist of ca. 10 nm sized mixed oxide nanoparticles with segregated TiO2 and SiO2 phases. Accumulation of carbonaceous compounds on the surface was seen to be almost linearly dependent on the Ti/Si ratio, indicating of each species being exposed in corresponding amount. However, wetting of the surface was observed to follow merely an S-shaped curve, caused by the roughness of the nanocoated surface. Reasons for the observed superhydrophobicity and superhydrophilicity of these binary nanocoatings on paperboard are discussed.",

keywords = "Coatings, Composite materials, Nanostructures, Surfaces, Thin films, Coatings, Composite materials, Nanostructures, Surfaces, Thin films, Coatings, Composite materials, Nanostructures, Surfaces, Thin films",

author = "J. Haapanen and M. Aromaa and H. Teisala and M. Tuominen and Milena Stepien and Jarkko Saarinen and M. Heikkil{\"a} and Martti Toivakka and J. Kuusipalo and JM M{\"a}kel{\"a}",

note = "PaF",

year = "2015",

doi = "10.1016/j.matchemphys.2014.10.011",

language = "Odefinierat/ok{\"a}nt",

volume = "149-150",

pages = "230–237",

journal = "Materials Chemistry and Physics",

issn = "0254-0584",

publisher = "Elsevier",

}

TY - JOUR

T1 - Binary TiO₂/SiO₂ nanoparticle coating for controlling the wetting properties of paperboard

AU - Haapanen, J.

AU - Aromaa, M.

AU - Teisala, H.

AU - Tuominen, M.

AU - Stepien, Milena

AU - Saarinen, Jarkko

AU - Heikkilä, M.

AU - Toivakka, Martti

AU - Kuusipalo, J.

AU - Mäkelä, JM

N1 - PaF

PY - 2015

Y1 - 2015

N2 - We introduce a flame based aerosol method to fabricate thin films consisting of binary TiO2/SiO2 nanoparticles deposited directly from the flame onto the paperboard. Nanocoatings were prepared with Liquid Flame Spray (LFS) in a roll-to-roll process with the line speed of 50 m/min. Surface wetting behavior of nanocoated paperboard was studied for different Ti/Si ratios in the precursor, affecting TiO2/ SiO2 ratio in the coating. Wettability could be adjusted to practically any water contact angle between 10 and 1600 by setting the Ti/Si ratio in the liquid precursor. Structure of the two component nanocoating was analysed with FE-SEM, TEM, EDS, XPS and XRD. The porous thin film coating was concluded to consist of ca. 10 nm sized mixed oxide nanoparticles with segregated TiO2 and SiO2 phases. Accumulation of carbonaceous compounds on the surface was seen to be almost linearly dependent on the Ti/Si ratio, indicating of each species being exposed in corresponding amount. However, wetting of the surface was observed to follow merely an S-shaped curve, caused by the roughness of the nanocoated surface. Reasons for the observed superhydrophobicity and superhydrophilicity of these binary nanocoatings on paperboard are discussed.

AB - We introduce a flame based aerosol method to fabricate thin films consisting of binary TiO2/SiO2 nanoparticles deposited directly from the flame onto the paperboard. Nanocoatings were prepared with Liquid Flame Spray (LFS) in a roll-to-roll process with the line speed of 50 m/min. Surface wetting behavior of nanocoated paperboard was studied for different Ti/Si ratios in the precursor, affecting TiO2/ SiO2 ratio in the coating. Wettability could be adjusted to practically any water contact angle between 10 and 1600 by setting the Ti/Si ratio in the liquid precursor. Structure of the two component nanocoating was analysed with FE-SEM, TEM, EDS, XPS and XRD. The porous thin film coating was concluded to consist of ca. 10 nm sized mixed oxide nanoparticles with segregated TiO2 and SiO2 phases. Accumulation of carbonaceous compounds on the surface was seen to be almost linearly dependent on the Ti/Si ratio, indicating of each species being exposed in corresponding amount. However, wetting of the surface was observed to follow merely an S-shaped curve, caused by the roughness of the nanocoated surface. Reasons for the observed superhydrophobicity and superhydrophilicity of these binary nanocoatings on paperboard are discussed.

KW - Coatings

KW - Composite materials

KW - Nanostructures

KW - Surfaces

KW - Thin films

KW - Coatings

KW - Composite materials

KW - Nanostructures

KW - Surfaces

KW - Thin films

KW - Coatings

KW - Composite materials

KW - Nanostructures

KW - Surfaces

KW - Thin films

U2 - 10.1016/j.matchemphys.2014.10.011

DO - 10.1016/j.matchemphys.2014.10.011

M3 - Artikel

SN - 0254-0584

VL - 149-150

SP - 230

EP - 237

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

ER -