Polyflavonoid tannins — a main cause of soft-rot failure in CCA-treated timber

  title={Polyflavonoid tannins — a main cause of soft-rot failure in CCA-treated timber},
  author={A. Pizzi and W. Conradie and A. Jansen},
  journal={Wood Science and Technology},
  • A. Pizzi, W. Conradie, A. Jansen
  • Published 2004
  • Chemistry
  • Wood Science and Technology
  • SummaryPolyflavonoid tannins are proven to be fast-reacting with CCA solutions and hence, to be strong competitors of the structural wood constituents for fixation of CCA preservatives. The consequence of this effect is that even relatively small amounts of tannin cause severe undertreatment of the structural wood constituents which in turn badly affects the long term durability of CCA treated timber. The effect is compounded by heavy disproportionation between tannins and structural wood… CONTINUE READING
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