Compressibility of porous TiO2 nanoparticle coating on paperboard

M Stepien, JJ Saarinen, H Teisala, M Tuominen, J Haapanen, JM Makela, J Kuusipalo, M Toivakka

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Abstract

Compressibility of liquid flame spray-deposited porous TiO2 nanoparticle coating was studied on paperboard samples using a traditional calendering technique in which the paperboard is compressed between a metal and polymer roll. Surface superhydrophobicity is lost due to a smoothening effect when the number of successive calendering cycles is increased. Field emission scanning electron microscope surface and cross-sectional images support the atomic force microscope roughness analysis that shows a significant compressibility of the deposited TiO2 nanoparticle coating with decrease in the surface roughness and nanoscale porosity under external pressure.
Original languageEnglish
Article number444
Pages (from-to)
Number of pages6
JournalNanoscale Research Letters
Volume8
DOIs
Publication statusPublished - 25 Oct 2013
MoE publication typeA1 Journal article-refereed

Keywords

  • Compressibility
  • Liquid flame spray process
  • Nanoparticles
  • Wettability

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