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Adsorption studies of phenolformaldehyde resin onto cellulose fibres

Version 2 2025-03-19, 00:00
Version 1 2023-05-26, 10:51
journal contribution
posted on 2025-03-19, 00:00 authored by Karen Stack, Lawrence Dunn, Noel Roberts
Adsorption of phenolformaldehyde resin (PFR) onto microcrystalline cellulose was investigated as a function of pH. ionic strength, temperature and shear. The effect of adsorption was also studied by measuring the electrophoretic mobility of the cellulose particles. Adsorption was found to occur above a critical ionic strength. Suppression of the electrical double layer and reduced solubility of PFR appear to be necessary to promote adsorption. Increasing the intensity and duration of shear was found to increase the amount of PFR adsorbed. In the presence of high molecular weight poly(ethylene oxide) (PEO), complex formation between PEO and PFR also competes with the interaction between PFR and the cellulose particles. The mobility data indicate that the PFR directly affects the cellulose surface rather than the PEO. © 1993.

History

Publication title

Colloids and Surfaces A : Physicochemical and Engineering Aspects

Volume

70

Issue

1

Article number

1

Number

1

Pagination

23-31

Publisher

Elsevier

Publication status

  • Published

Rights statement

The definitive version is available at http://www.sciencedirect.com

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