Colloidal and deposition behavior of Pinus radiata extractives and model colloid systems

Karen R. Stack, Roland Lee, Jianhui Zhang, Trevor W. Lewis, Gil Garnier, Desmond E. Richardson

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearch

4 Citations (Scopus)


Colloidal and deposition behaviour of wood extractives from Pinus radiata was studied and compared to reported behaviour of Picea abies. Differences in composition between the two species can be used to explain the differences in behaviour with P.radiata extractives being less stable against electrolyte induced aggregation with calcium and having a stronger interaction with fibre surfaces. Model studies undertaken to investigate the effect of triglycerides on the colloid have lead to modifications to the wood extractive droplet model which better explain the pitch deposition behaviour in paper mills using P.radiata to manufacture mechanical paper grades.

Original languageEnglish
Title of host publication16th International Symposium on Wood, Fiber and Pulping Chemistry - Proceedings, Volume II
Subtitle of host publicationTianjin, China, June 8-10, 2011
EditorsLijun Wang, Shijun Kuang, Qingxi Hou, Chunyu Cao, Chuanling Si, Hongjie Zhang
Place of PublicationChina
PublisherChina Light Industry Press
Number of pages6
ISBN (Print)9787501982066
Publication statusPublished - 2011
Event16th International Symposium on Wood, Fiber and Pulping Chemistry, ISWFPC - Tianjin, China
Duration: 8 Jun 201110 Jun 2011


Conference16th International Symposium on Wood, Fiber and Pulping Chemistry, ISWFPC


  • Colloidal stability Pinus radiata
  • Electron paramagnetic spin resonance (EPR)
  • Pitch deposition
  • Wood resin

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