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Viscoelastic properties of wood across the grain measured under water-saturated conditions up to 135 °C: evidence of thermal degradation

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Abstract

In this paper, the viscoelastic properties of wood under water-saturated conditions are investigated from 10 to 135 °C using the WAVET apparatus. Experiments were performed via harmonic tests at two frequencies (0.1 and 1 Hz) for several hours. Four species of wood were tested in the radial and tangential material directions: oak (Quercus sessiliflora), beech (Fagus sylvatica), spruce (Picea abies) and fir (Abies pectinata). When the treatment is applied for several hours, a reduction of the wood rigidity is significant from temperature values as low as 80–90 °C and increases rapidly with the temperature level. The storage modulus of oak wood is divided by a factor two after 3 h of exposure at 135 °C. This marked reduction in rigidity is attributed to the hydrolysis of hemicelluloses. The softening temperature of wood is also noticeably affected by hygro-thermal treatment. After three short successive treatments up to 135 °C, the softening temperature of oak shifted from 79 °C to 103 °C, at a frequency of 1 Hz. This reduction in mobility of wood polymers is consistent with the condensation of lignins observed by many authors at this temperature level. In the same conditions, fir exhibited a softening temperature decrease of about 4 °C. In any case, the internal friction clearly rises.

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References

  1. Kelley S, Rials T, Glasser W (1987) J Mater Sci 22:617

    Article  CAS  Google Scholar 

  2. Obataya E, Norimoto M, Gril J (1998) Polymer 39(14):3059

    Article  CAS  Google Scholar 

  3. Salmén L (1984) J Mater Sci 19:3090

    Article  Google Scholar 

  4. Olsson A-M, Salmén L (1992) In: Viscoelasticity of biomaterials. A. C. Society, p 133

  5. Olsson A-M, Salmén L (1997) In: Proceedings of the International Conference of COST Action E8, Mechanical Performance of Wood and Wood Products, p 269

  6. Gril J (1988) in PhD report, Université Paris 6

  7. Ranta-Maunus A (1975) Wood Sci Technol 9:189

    Article  Google Scholar 

  8. Ranta-Maunus A (1990) Wood Sci Technol 48:67

    Google Scholar 

  9. Mukudai J, Yata S (1986) Wood Sci Technol 20:335

    Article  Google Scholar 

  10. Mukudai J, Yata S (1988) Wood Sci Technol 22:43

    Article  CAS  Google Scholar 

  11. Hanhijärvi A, Hunt D (1998) Wood Sci Technol 32:570

    Article  Google Scholar 

  12. Funaoka M, Kako T, Abe I (1990) Wood Sci Technol 24:277

    Article  CAS  Google Scholar 

  13. Passard J, Perré P (2004) In: Proceedings of the COST E15 Final Conference, Creep of Wood at High Temperature: Thermal Activation or Thermal Degradation?

  14. Takahashi K, Morooka T, Norimoto M (1998) Wood Res 85:79

    Google Scholar 

  15. Hamdan S, Dwianto W, Morooka T, Norimoto M (2000) Holzforschung 54(5):557

    Article  CAS  Google Scholar 

  16. Passard J, Perré P (2005) Ann For Sci 62:707

    Article  Google Scholar 

  17. Passard J, Perré P (2005) Ann For Sci 62:823

    Article  Google Scholar 

  18. Placet V, Passard J, Perré P (2007) WAVET, a custom device able to measure viscoelastic properties of green wood up to 100 °C. Submitted to the Maderas Ciença Technologia., November

  19. Placet V (2006) PhD report, University of Nancy 1

  20. Placet V, Passard J, Perré P (2007) Holzforschung 61–65:548

    Google Scholar 

  21. Placet V, Perré P (2006) Patent. “Chambre d’essai bi-climatique”. Réf: FR0608589

  22. Timoshenko SP (1968) Résistance des matériaux. Bordas, Paris

    Google Scholar 

  23. Wikberg H, Maunu SL (2004) Polym Carbohydr 58:461

    Article  CAS  Google Scholar 

  24. Kudo M, Iida I, Ishimaru Y, Furuta Y (2003) Mokuzai Gakkaishi 49:253

    Google Scholar 

  25. Iida I, Ooi K, Wang Y, Furuta Y, Ishimaru Y (2006) Mokuzai Gakkaishi 52:93

    Article  CAS  Google Scholar 

Download references

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Authors and Affiliations

  1. Department of Applied Mechanics, CNRS UMR 6174 FEMTO-ST Institute, 24 Chemin de l’Epitaphe, Besancon, 25000, France

    Vincent Placet

  2. UMR1093 Etudes et Recherche sur le Matériau Bois, INRA, ENGREF, 14, rue Girardet, Nancy, 54042, France

    Joëlle Passard & Patrick Perré

Authors
  1. Vincent Placet
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  2. Joëlle Passard
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  3. Patrick Perré
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Correspondence to Vincent Placet.

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Placet, V., Passard, J. & Perré, P. Viscoelastic properties of wood across the grain measured under water-saturated conditions up to 135 °C: evidence of thermal degradation. J Mater Sci 43, 3210–3217 (2008). https://doi.org/10.1007/s10853-008-2546-9

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  • DOI: https://doi.org/10.1007/s10853-008-2546-9

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