Modification of cellulose nanofibre surfaces by He/NH3 plasma at atmospheric pressure

Yukihiro Kusano*, Bo Madsen, Linn Berglund, Kristiina Oksman

*Corresponding author for this work

Research output: Contribution to journalJournal articleResearchpeer-review

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Abstract

Cellulose nanofibre coatings were treated by a dielectric barrier discharge plasma in a He/NH3 gas mixture at atmospheric pressure. Ultrasound was optionally irradiated during the treatment. The treatment enhanced the wetting of deionized water, glycerol, and uncured epoxy. Irradiation of ultrasound did not significantly change optical emission from the plasma, but increased the oxygen contents and enhanced etching and roughening at the nanofibre coating surfaces. Furthermore, the irradiation of ultrasound enhanced the wetting of deionized water and glycerol drastically, while that of uncured epoxy to some extent.
Original languageEnglish
JournalCellulose
Volume26
Issue number12
Pages (from-to)7185-7194
Number of pages10
ISSN0969-0239
DOIs
Publication statusPublished - 2019

Keywords

  • Cellulose
  • Nanofibre
  • Plasma treatment
  • Dielectric barrier discharge
  • Ultrasound
  • Wetting
  • Surface roughening

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