Effects of atmospheric plasma activation on surface properties of pigment-coated and surface-sized papers

A1 Originalartikel i en vetenskaplig tidskrift (referentgranskad)


Interna författare/redaktörer


Publikationens författare: Pykönen M, Sundqvist H, Järnström J, Kaukoniemi OV, Tuominen M, Lahti J, Peltonen J, Fardim P, Toivakka M
Förläggare: ELSEVIER SCIENCE BV
Publiceringsår: 2008
Tidskrift: Applied Surface Science
Tidskriftsakronym: APPL SURF SCI
Volym: 255
Nummer: 5
Artikelns första sida, sidnummer: 3217
Artikelns sista sida, sidnummer: 3229
Antal sidor: 13
ISSN: 0169-4332


Abstrakt

Pigment-coated, surface-sized, and surface-sized copy papers were treated with conventional corona, experimental pilot-scale plasma and laboratory-scale plasma. All the treatments increased the surface energy and oxidized the surface. The changes in the surface chemistry depended on treatment time and composition of the substrate surface. It seems that plasma especially oxidizes the long polymer chains, such as surfactants and other paper chemicals, on the surface of the paper. The ToF-SIMS distribution maps indicated that the pilot-scale treatment led to an uneven CO(+) group distribution, whereas laboratory scale treatment gave a more even distribution of CO(+) groups. In addition to chemical changes, topographical changes due to plasma treatment were detected. The RMS roughness increased for pigment-coated paper, whereas plasma treatment induced small nodules between the paper pigment particles with pigmented and surface-sized paper. The increase in roughness was also found to increase the wettability. This serves as a demonstration of roughness-induced increase of surface energy of the samples.


Nyckelord

Paper, Plasma activation, Surface chemistry, Topography

Senast uppdaterad 2019-19-11 vid 04:29