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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
Article

Abstract

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.

Keywords

PMMA Water Contact Angle Wood Sample Calcium Hydroxide Supercritical Carbon Dioxide 

Notes

Acknowledgement

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)

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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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