eCite Digital Repository

Evaluation of cationic polymers to control pitch deposition


McLean, DS and Stack, KR and Richardson, DE, Evaluation of cationic polymers to control pitch deposition, Appita Journal, 63, (3) pp. 199-205. ISSN 1038-6807 (2010) [Refereed Article]


A wide range of cationic polymers of varying chemical structure, charge density and molar mass were evaluated for their effectiveness to control wood resin deposition. The ability of the polymers to attach model wood resin particles to thermo-mechanical pulp fibres and to maintain the wood resin in the colloidal phase was determined at pH 4.75, 6.85 and 8.06. High molar mass poly-DADMAC, copolymer poly-(AM-co-DADMAC) and guar gum were found to be the best fixatives over the pH range investigated. The performance of poly-DADMAC was found to increase with molar mass and charge density. A conceptual model was proposed to explain the behaviour of the polymers based on their ability to stabilise the wood resin colloids, to attach the wood resins to pulp fibres and to affect the wood resin particle size.

Item Details

Item Type:Refereed Article
Research Division:Chemical Sciences
Research Group:Other chemical sciences
Research Field:Other chemical sciences not elsewhere classified
Objective Division:Energy
Objective Group:Renewable energy
Objective Field:Biofuel energy
UTAS Author:McLean, DS (Mr Douglas McLean)
UTAS Author:Stack, KR (Dr Karen Stack)
ID Code:67375
Year Published:2010
Web of Science® Times Cited:8
Deposited By:Chemistry
Deposited On:2011-03-03
Last Modified:2012-02-16

Repository Staff Only: item control page