• Galia Shulga Latvian State Institute of Wood Chemistry
  • Sanita Vitolina Latvian State Institute of Wood Chemistry
  • Brigita Neiberte Latvian State Institute of Wood Chemistry
  • Jevgenijs Jaunslavietis Latvian State Institute of Wood Chemistry
  • Anrijs Verovkins Latvian State Institute of Wood Chemistry
  • Jurijs Ozolins Riga Technical University
  • Sandra Livcha Latvian State Institute of Wood Chemistry
  • Talrits Betkers Latvian State Institute of Wood Chemistry



soda lignin, valorization, wood polymer composite


The aim was to obtain a valorized soda lignin and to study its properties for the followed treatment of hardwood sawdust as a filler for obtaining a wood-polymer composite. It was shown that the treatment of aspen sawdust microparticles by their immersion into a water solution of the valorized soda lignin, that is a water-soluble soda lignin/polyethylenimine polyelectrolyte complex, leads to hydrophobisation of the sawdust particles, which in turn positively affects the mechanical performance of the obtained wood-polymer composite.


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How to Cite

G. Shulga, “VALORIZED SODA LIGNIN AND ITS POSSIBLE APPLICATION”, ETR, vol. 3, pp. 219–223, Jun. 2019, doi: 10.17770/etr2019vol3.4122.