Adsorption of model wood polymers and colloids on bentonites

Tom Asselman, Gil Garnier

Research output: Contribution to journalArticleResearchpeer-review

37 Citations (Scopus)

Abstract

The adsorption of model water-soluble wood polymers and colloids on bentonites was investigated. Polymers form molecular monolayers on the montmorillonite surface while colloids adsorb as particles. All components follow a low-affinity Langmuir isotherm. The observed maximal adsorbed quantities suggest that the montmorillonite particles are fully de-layered after swelling in water. The results are analysed in the context of papermaking, where bentonites are used as adsorbents for process contaminants.

Original languageEnglish
Pages (from-to)175-182
Number of pages8
JournalColloids and Surfaces A: Physicochemical and Engineering Aspects
Volume168
Issue number2
DOIs
Publication statusPublished - 1 Jan 2000
Externally publishedYes

Keywords

  • Abietic acid
  • Adsorption isotherms
  • Bentonites
  • Dextran
  • Lignin
  • Papermaking
  • Pitch

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