Adsorption of model wood polymers and colloids on bentonites

Tom Asselman; Gil Garnier

doi:10.1016/S0927-7757(00)00430-1

Adsorption of model wood polymers and colloids on bentonites

Tom Asselman, Gil Garnier

Research output: Contribution to journal › Article › Research › peer-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 language	English
Pages (from-to)	175-182
Number of pages	8
Journal	Colloids and Surfaces A: Physicochemical and Engineering Aspects
Volume	168
Issue number	2
DOIs	https://doi.org/10.1016/S0927-7757(00)00430-1
Publication status	Published - 1 Jan 2000
Externally published	Yes

Keywords

Abietic acid
Adsorption isotherms
Bentonites
Dextran
Lignin
Papermaking
Pitch

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10.1016/S0927-7757(00)00430-1

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AB - 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.

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KW - Adsorption isotherms

KW - Bentonites

KW - Dextran

KW - Lignin

KW - Papermaking

KW - Pitch

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SN - 0927-7757

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ER -

Adsorption of model wood polymers and colloids on bentonites

Abstract

Keywords

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