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Adsorption behaviour of cationic fixatives and their effect on pitch deposition

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Maher, LE and Stack, KR and McLean, DS and Richardson, DE (2007) Adsorption behaviour of cationic fixatives and their effect on pitch deposition. Appita Journal, 60 (2). pp. 112-119. ISSN 1038-6807

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Abstract

The behaviour of the four different polymeric fixatives in the presence of wood extractive components with and without fibres was investigated, Cationic polyacrylamide (CPAM) and high and medium charge co-polymers of polyacrylamide and poly(diallyl-dimethyl ammonium chloride (polyDADMAC) were found to stabilise the wood extractive colloids in solution, as well, as attach the wood resins to the fibre. Polyethylenimine (PEI) was shown to cause non-selective deposition onto both fibre and non-fibre surfaces, as well as reduce the amount of wood extractives in the dissolved and colloidal phase. PEI was also found to preferentially interact with triolein and the medium charge co-polymer exhibited preference in fibre-attachment of oleic acid.

Item Type: Article
Journal or Publication Title: Appita Journal
Page Range: pp. 112-119
ISSN: 1038-6807
Date Deposited: 27 Jan 2009 23:09
Last Modified: 18 Nov 2014 03:51
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