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Effect of pitch preparation on its colloidal properties and deposition behaviour


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Stack, KR and Lee, R and Rao, R and Richardson, DE and Garnier, G and Lewis, T (2009) Effect of pitch preparation on its colloidal properties and deposition behaviour. In: 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)
Journal or Publication Title: 63rd Appita Annual General Conference Proceedings
Page Range: pp. 353-358
Date Deposited: 16 Dec 2009 02:58
Last Modified: 04 Sep 2013 05:11
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