High performance tannin resin-boron wood preservatives for outdoor end-uses

  • Marie-France Thevenon
  • Gianluca Tondi
  • Antonio PizziEmail author
Originalarbeiten Originals


Fixation of boric acid as a low toxicity wood preservative to decrease markedly its leachability was undertaken. Preservative systems based on the cross-linking and hardening of condensed tannins by hexamine, where boric acid is complexed onto the network, were found to markedly slow down the leaching of boron. They significantly enhanced wood durability before and after leaching once tested towards basidiomycetes according to the guidelines of EN 113. A particularly virulent fungal species was used for the tests. Further immersion of the wood so treated in hot unsaturated vegetable oil does yield comparable results.


Tannin Boric Acid Wood Preservative Hexamine Percentage Mass Loss 
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Hochwirksame Holzschutzmittel auf Tanninharz-Bor-Basis für Anwendungen im Außenbereich


Um die Auswaschbarkeit von Borsäure als einem wenig giftigen Holzschutzmittel deutlich zu reduzieren, wurde eine Fixierung durchgeführt. Es zeigte sich, dass Holzschutzmittel, die auf Vernetzung und Aushärtung von kondensierten Tanninen mittels Hexamin basieren und deren Netzwerk mit Borsäure komplexiert wird, die Auswaschung von Bor deutlich reduzierten. Versuche mit Basidiomyceten gemäß EN 113 zeigten, dass sich die Dauerhaftigkeit von Holz vor und nach dem Auswaschen deutlich erhöht hatte. Für die Versuche wurde eine besonders stark wirkende Pilzart verwendet. Eine zusätzliche Tränkung des so behandelten Holzes in heißem, ungesättigtem Pflanzenöl verbesserte die Ergebnisse nicht.


  1. 1.
    Byrne A, Morris PI (1997) Recent Research in Boron Treatment of Canadian Wood Species in The Second International Conference on Wood Protection with Diffusible Preservatives and Pesticides. Forests Products Society, pp 55–61Google Scholar
  2. 2.
    Drysdale JA (1994) Boron Treatments fot the Preservation of Wood. A review of Efficacy Data for Fungi and termites. The International Research Group on Wood Preservation. Stockholm, Sweden. Doc IRG/WP 94-30037. IRG Secretariat Stockholm, SwedenGoogle Scholar
  3. 3.
    EN113 (1996) Wood preservatives. Method for determining the protective effectiveness against wood destroying Basidiomycetes. Determination of toxic valuesGoogle Scholar
  4. 4.
    Grace JK, Yamamoto RT, Tamashiro M (1992) Resistance of borate-treated Douglas-fir lumber formosan subterranean termites. For Prod J 42(2):61–65Google Scholar
  5. 5.
    Grace JK, Yamamoto RT (1994) Simulation of remedial borate treatments intended to reduce attack on Douglas-fir lumber by the Formosan subterranean termites (Isoptera: Rhinotermitidae). J Econ Entomol 87(6):1547–1554Google Scholar
  6. 6.
    Grace JK, Tsunoda K, Byrne A, Morris PI (1994) Field evaluation of borate-treated lumber under conditions of high termite hazard. Abstract. In Proc. Wood Pres. In the 90s and Beyond. Forest Prodution Society, Madison, WI, pp 240Google Scholar
  7. 7.
    Hamilton SJ, Buhl KJ (1990) Acute toxicity of boron, molybdenum and selenium to Fry of Chinook salmon and Coho salmon. Arch Environ Contam Toxicol 19:366–373PubMedCrossRefGoogle Scholar
  8. 8.
    Jansen JA, Andersen J, Shou JS (1984) Boric acid single dose pharmacokinetics after intravenous administration to man. Arch Toxicol 55:64–67PubMedCrossRefGoogle Scholar
  9. 9.
    Kamoun C, Pizzi A (2000a) Mechanism of hexamine as a non-aldehyde polycondensation hardener, Part 1. Holzforsch Holzverw 52(1):16–19Google Scholar
  10. 10.
    Kamoun C, Pizzi A (2000b) Mechanism of hexamine as a non-aldehyde polycondensation hardener, Part 2: recomposition of intermediate reactive compound. Holzforsch Holzverw 52(3):66–67Google Scholar
  11. 11.
    Kamoun C, Pizzi A, Zanetti M (2003) Upgrading of MUF resins by buffering additives – Part 1: hexamine sulphate effect and its limits. J Appl Polym Sci 90(1):203–214CrossRefGoogle Scholar
  12. 12.
    Lebow ST, Morell TJ (1989) Penetration of boron in Douglas-fir and western hemlock lumber. For Prod J 39(1):37–70Google Scholar
  13. 13.
    Lloyd JD (1997) International borate status of borate preservative systems. The second international conference on wood protection with diffusible preservatives and pesticides, Madison, WI, pp 45–54Google Scholar
  14. 14.
    Lloyd JD (1998) Borates and their biological applications. The International Research Group on Wood Preservation. Doc IRG/WP 98-30178. IRG Secretariat Stockholm, SwedenGoogle Scholar
  15. 15.
    Lyon F (2007) Amélioration de la durée de vie d’essences peu durables à l’aide d’un traitement combine borates/huiles végétales. Ph.D. Thesis, University of Montpellier II, 263 pGoogle Scholar
  16. 16.
    Lyon F, Pizzi A, Imamura Y, Thévenon M-F, Nami Kartal S, Gril J (2007a) Leachability and termite resistance of wood treated with a new preservative: ammonium borate oleate. Holz Roh- Werkst 65(5):359–366CrossRefGoogle Scholar
  17. 17.
    Lyon F, Thévenon M-F, Hwang W-J, Imamura Y, Gril J, Pizzi (2007b) Effect of an oil heat treatment on leachability and biological resistance of boric acid impregnated wood. Ann For Sci 64:673–678CrossRefGoogle Scholar
  18. 18.
    Maier KJ, Knight AW (1991) The toxicity of waterborne boron to Daphnia magnia and Chironomus decorus and the effect of water hardness and sulphate on boron toxicity. Arch Environ Contam Toxicol 20:282–287PubMedCrossRefGoogle Scholar
  19. 19.
    Peylo A, Willeitner H (1997) Leaching of Boron more than 3 years after exposure. The International Research Group on Wood Preservation, Stockholm, Sweden. Doc IRG/WP 97-30143Google Scholar
  20. 20.
    Pichelin F, Nakatani M, Pizzi A, Wieland S, Despres A, Rigolet S (2006) Thick wood panels bonded industrially with formaldehyde free tannin adhesives. For Prod J 56(5):31–36Google Scholar
  21. 21.
    Pizzi A (1993a) A new approach to non-toxic, wide-spectrum, ground-contact wood preservatives, Part 1: Approach and reaction mechanisms. Holzforschung 47:253–260CrossRefGoogle Scholar
  22. 22.
    Pizzi A (1993b) A new approach to non-toxic, wide-spectrum, ground-contact wood preservatives, Part 2: Accelerated and field biological tests. Holzforschung 47:343–348Google Scholar
  23. 23.
    Pizzi A, Baecker AW (1996) A new boron fixation mechanism for non-toxic wood preservatives. Holzforschung 50(6):507–510Google Scholar
  24. 24.
    Thévenon MF (1999) Formulation of long-term, heavy-duty and low-toxic wood preservatives. Application to the associations boric acid-condensed tannins and boric acid-proteins. Ph.D. Thesis, University of Nancy I, FranceGoogle Scholar
  25. 25.
    Teshima D, Taniyama D, Oishi R (2001) Usefulness of forced diuresis for acute boric acid poisoning in an adult. J Clin Pharm Therap 26:387–390CrossRefGoogle Scholar
  26. 26.
    Usuda K, Kono K, Orita Y, Dote T, Iguchi K, Nishiura H, Tominaga M, Tagawa T, Goto E, Shirai Y (1998). Serum and urinary boron levels in rats after single administration of sodium tetraborate. Arch Toxicol 72(8):468–474PubMedCrossRefGoogle Scholar

Copyright information

© Springer-Verlag 2008

Authors and Affiliations

  • Marie-France Thevenon
    • 1
  • Gianluca Tondi
    • 2
  • Antonio Pizzi
    • 2
    Email author
  1. 1.UR40 Bois tropicauxCIRADMontpellierFrance
  2. 2.ENSTIB-LERMABNancy UniversityEpinalFrance

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