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Adsorption behaviour of cationic fixatives and their effect on pitch deposition


Maher, LE and Stack, KR and McLean, DS and Richardson, DE, Adsorption behaviour of cationic fixatives and their effect on pitch deposition, Appita Journal, 60, (2) pp. 112-128. ISSN 1038-6807 (2007) [Refereed Article]


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 to 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 Details

Item Type:Refereed Article
Research Division:Engineering
Research Group:Materials engineering
Research Field:Timber, pulp and paper
Objective Division:Manufacturing
Objective Group:Wood, wood products and paper
Objective Field:Paper products and pulp
UTAS Author:Maher, LE (Ms Lynsey Maher)
UTAS Author:Stack, KR (Dr Karen Stack)
UTAS Author:McLean, DS (Mr Douglas McLean)
ID Code:51151
Year Published:2007
Web of Science® Times Cited:18
Deposited By:Chemistry
Deposited On:2007-08-01
Last Modified:2009-10-06

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