Creation of superhydrophilic surfaces of paper and board

A1 Journal article (refereed)


Internal Authors/Editors


Publication Details

List of Authors: Tuominen M, Teisala H, Aromaa M, Stepien M, Mäkelä JM, Saarinen JJ, Toivakka M, Kuusipalo J
Publisher: TAYLOR & FRANCIS LTD
Publication year: 2014
Journal: Journal of Adhesion Science and Technology
Journal acronym: J ADHES SCI TECHNOL
Volume number: 28
Issue number: 8-9
Start page: 864
End page: 879
Number of pages: 16
ISSN: 0169-4243


Abstract

Corona, flame, atmospheric plasma, and liquid flame spray (LFS) techniques were used to create highly hydrophilic surfaces for pigment-coated paper and board and machine-glossed paper. All the surface modification techniques were performed continuously in ambient atmosphere. The physical changes on the surfaces were characterized by field emission gun-scanning electron microscopy (FEG-SEM), atomic force microscopy and Parker Print-Surf surface roughness. The chemical changes were analysed by X-ray photoelectron spectroscopy. The superhydrophilic surfaces, i.e. contact angle of water (CAW) <10 degrees, were created mainly by modifying the surface chemistry of the paper and board by argon plasma or SiO2 coating. The nano- and microscale roughness existing on paper and board surfaces enabled the creation of the superhydrophilic surfaces. Furthermore, the benefits and limitations of the surface modification techniques are discussed and compared. For example, the SiO2 coating maintained its extreme hydrophilicity for at least six months, whereas the CAW of argon plasma-treated surface increased to about 20 degrees already in one day.


Keywords

argon plasma treatment, board, corona treatment, flame treatment, liquid flame spray, paper, SiO2 coating, superhydrophilicity

Last updated on 2019-17-07 at 06:08