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Effect of pitch preparation on its colloidal properties and deposition behaviour


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Stack, KR, Lee, R, Rao, R, Richardson, DE, Garnier, G and Lewis, T 2009 , 'Effect of pitch preparation on its colloidal properties and deposition behaviour', paper presented at the 63rd Appita Annual Conference and Exhibition, 19-22 April 2009, Melbourne, Victoria.

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The effect of pitch dispersion preparation on pitch
particle size, aggregation and deposition tendency was
studied. Pitch dispersions prepared from hexane
extracted wood resins were found to have smaller
particle size than dispersions prepared from model
compounds. The addition of acetone was also found to
reduce the particle size of the pitch colloid. Differences
in aggregation kinetics of the pitch particles were also
observed. As deposition tendency of the different pitch
dispersions was found to be constant at the same
concentration, these observed differences in deposition
tendency related to dialysis and origin of the pitch can be
attributed to differences in concentration.

Item Type: Conference or Workshop Item (Paper)
Authors/Creators:Stack, KR and Lee, R and Rao, R and Richardson, DE and Garnier, G and Lewis, T
Journal or Publication Title: 63rd Appita Annual General Conference Proceedings
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