EFFECT OF THE ACIDIC TREATMENT OF DOMESTIC WOOD RESIDUE ON BIOCOMPOSITE WETTABILITY AND MOISTURE SORPTION PROPERTIES

Authors

  • Jevgenijs Jaunslavietis Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry (LV)
  • Galia Shulga Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry (LV)
  • Jurijs Ozolins Faculty of Materials Science and Applied Chemistry (LV)
  • Brigita Neiberte Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry (LV)
  • Anrijs Verovkins Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry (LV)
  • Sanita Vitolina Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry (LV)
  • Sandra Livca Laboratory of Lignin Chemistry, Latvian State Institute of Wood Chemistry (LV)

DOI:

https://doi.org/10.17770/etr2017vol1.2538

Keywords:

Mild Acidic Treatment, Moisture Sorption, Wettability, Wood-Polymer Composite, Wood Residue

Abstract

The aim of the work was to evaluate the effect of the acidic treatment temperature of aspen sawdust as a filler on the moisture sorption, wetting and mechanical properties of wood-polymer composites. Aspen wood sawdust was treated with the dilute hydrochloric acid solution at 60oC and 90oC during 5 h. Both the treated particles and the filled composites were studied in terms of moisture sorption and wettability; their surface free energy was calculated using the Owens-Wendt-Rabel-Kaelble (OWRK) approach. The obtained results have shown that the acidic treatment of aspen wood sawdust at 90oC leads to an increase in its hydrophobicity that decreases the wettability and moisture sorption of the obtained composite and increases its mechanical properties.
Supporting Agencies
The authors would like to thank the Ministry of Education and Science of the Republic of Latvia for the financial support from the National Research Programme (ResProd) and the basic funding.

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Published

2017-06-15

Issue

Vol. 1 (2017): Environment. Technology. Resources. Proceedings of the 11th International Scientific and Practical Conference. Volume 1

Section

Environment and Resources

How to Cite

[1]
J. Jaunslavietis, “EFFECT OF THE ACIDIC TREATMENT OF DOMESTIC WOOD RESIDUE ON BIOCOMPOSITE WETTABILITY AND MOISTURE SORPTION PROPERTIES”, ETR, vol. 1, pp. 129–133, Jun. 2017, doi: 10.17770/etr2017vol1.2538.