Journal of Materials Science

, Volume 46, Issue 16, pp 5406–5411 | Cite as

Thermal stability and hydrophobicity enhancement of wood through impregnation with aqueous solutions and supercritical carbon dioxide

  • Costas Tsioptsias
  • Costas PanayiotouEmail author


A novel process for the thermal stability and hydrophobicity enhancement of wood is proposed. The process concerns the impregnation of wood with water-soluble and water-insoluble salts. The salts are synthesized in situ in wood through aqueous solutions and supercritical carbon dioxide treatment. To protect salt-treated wood from absorbing large amounts of humidity a polymer film is formed upon the surface of wood and depending on the inherent roughness of wood, superhydrophobicity can be obtained. Characterization of the materials was performed by infrared spectroscopy, thermogravimetry, calorimetry, density, color and contact angle measurements and ignition and visual observations. The fire retardation is achieved in both glowing and smolding combustion and may be due to different mechanisms as it was concluded from the thermogravimetric analysis and ignition.


PMMA Water Contact Angle Wood Sample Calcium Hydroxide Supercritical Carbon Dioxide 



The authors thank Dr. Stella Papadopoulou for her assistance in color measurements, video shooting and for helpful discussions.

Supplementary material

10853_2011_5480_MOESM1_ESM.docx (172 kb)
Supplementary material 1 (DOCX 171 kb)


  1. 1.
    Rowell RM, LeVan-Green SL (2005) In: Rowell R (ed) Handbook of wood chemistry and wood Composites. Taylor and Francis, Boca RatonGoogle Scholar
  2. 2.
    Hirata T, Kawamoto S, Nishimoto T (1991) Fire Mater 15:27CrossRefGoogle Scholar
  3. 3.
    Hagen M, Hereid J, Delichatsios MA, Zhang J, Bakirtzis D (2009) Fire Saf J 44:1053CrossRefGoogle Scholar
  4. 4.
    Tsioptsias C, Panayiotou C (2008) J Supercrit Fluid 47:302CrossRefGoogle Scholar
  5. 5.
    Manoudis PN, Karapanagiotis I, Tsakalof A, Zuburtikudis I, Panayiotou C (2008) Langmuir 24:11225CrossRefGoogle Scholar
  6. 6.
    Hawley LF, Campbell WG (1927) Ind Eng Chem 19:742CrossRefGoogle Scholar
  7. 7.
    Poli T, Toniolo L, Chiantore O (2004) Appl Phys A 79:347CrossRefGoogle Scholar
  8. 8.
    Ruyter IE, Nielner K, Moller BR (1987) Dent Mater 3:246CrossRefGoogle Scholar
  9. 9.
    Ekmekyapar A, Ersahan H, Yapici S (1996) Ind Eng Chem Res 35:258CrossRefGoogle Scholar
  10. 10.
    Kloss WS, Heide K, Klinke W (2003) In: Brown ME, Gallagher PK (eds) Handbook of thermal analysis and calorimetry, vol 2. Elsevier, AmsterdamGoogle Scholar
  11. 11.
    Singh NB, Singh NP (2007) J Therm Anal Calorim 89:159CrossRefGoogle Scholar
  12. 12.
    Huang CK, Kerr PF (1960) Am Miner 45:311Google Scholar
  13. 13.
    Dhage S, Lee H-C, Hassan MS, Akhtar MS, Kim C-Y, Sohn JM, Kim K-J, Shin H-S, Yang O-B (2009) Mater Lett 63:174CrossRefGoogle Scholar
  14. 14.
    Liu YR, Huang YD, Liu L (2007) J Mater Sci 42:5544. doi: CrossRefGoogle Scholar
  15. 15.
    Popescu CM, Popescu MC, Vasile C (2010) Carbohydr Polym 79:362CrossRefGoogle Scholar
  16. 16.
    Huang A, Zhou Q, Liu J, Fei B, Sun S (2008) J Mol Struct 883–884:160CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC 2011

Authors and Affiliations

  1. 1.Laboratory of Physical Chemistry, Chemical Engineering DepartmentAristotle University of ThessalonikiThessalonikiGreece

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