Characterisation of surface properties of chemical and plasma treated regenerated cellulose fabric

Zdenka Peršin, Alenka Vesel, Karin Stana Kleinschek, Miran Mozetič

Research output: Contribution to journalArticleResearchpeer-review

Abstract

The aim of this research work was to study the surface properties and sorption characteristics of differently treated regenerated cellulose fabrics. Surface modifications of viscose, modal and lyocell samples caused by using standard chemical pre-treatment procedures were compared to an alternative activation procedure by applying low pressure oxygen plasma treatment. The elemental chemical composition of the modified fabric surfaces was investigated using X-ray photoelectron spectroscopy (XPS), while hydrophilic/hydrophobic properties were evaluated by determining the water contact angles, as well as thoroughly analysed using Owens–Wendt surface energy (SFE) and surface polarity investigations. Standard chemical and also plasma treatments changed the surface chemistry of cellulose. Bleaching and alkaline treatments increased the surface carboxylic acid content by approximately 4.8% while plasma treatment increased it by approximately 9.7%. As a consequence, higher hydrophilicity arises as proved by water contact angle decrease; i.e. 24% (61°) after standard chemical treatments and 70% (20°) after plasma treatment. Both chemical treatments increase the SFE and polar components, while the reduction of dispersive components was less pronounced. The oxygen activation treatment has the greatest influence on the SFEs of the samples as well as on polarity of the samples.

Original languageEnglish
Pages (from-to)2078-2089
Number of pages12
JournalTextile research journal
Volume82
Issue number20
DOIs
Publication statusPublished - 1 Jan 2012
Externally publishedYes

Keywords

  • chemical pre-treatment
  • contact angle
  • hydrophilicity
  • Owens–Wendt surface energy
  • oxygen plasma
  • polarity
  • Regenerated cellulose fabric
  • surface chemical composition

ASJC Scopus subject areas

  • Chemical Engineering (miscellaneous)
  • Polymers and Plastics

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