Wyniki wyszukiwania dla: LIQUEFIED WOOD

• Liquefaction of alder wood as the source of renewable and sustainable polyols for preparation of polyurethane resins

  Publikacja

  • K. Gosz
  • D. Kowalkowska-Zedler
  • J. T. Haponiuk
  • Ł. Piszczyk

  - WOOD SCIENCE AND TECHNOLOGY - Rok 2020

  Liquefaction of wood-based biomass gives different polyol properties depending on the reagents used. In this article, alder wood sawdust was liquefied with glycerol and poly(ethylene glycol) solvents. Liquefaction reactions were carried out at temperatures of 120, 150 and 170 °C. The obtained bio-polyols were analyzed in order to establish the process efficiency, hydroxyl number, acid value, viscosity and structural characteristics...

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• Bio-Based Polyurethane Networks Derived from Liquefied Sawdust

  Publikacja

  • K. Gosz
  • A. Tercjak
  • A. Olszewski
  • J. T. Haponiuk
  • Ł. Piszczyk

  - Materials - Rok 2021

  The utilization of forestry waste resources in the production of polyurethane resins is a promising green alternative to the use of unsustainable resources. Liquefaction of wood-based biomass gives polyols with properties depending on the reagents used. In this article, the liquefaction of forestry wastes, including sawdust, in solvents such as glycerol and polyethylene glycol was investigated. The liquefaction process was carried...

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