Repozytorium publikacji - Politechnika Gdańska

Incorporation of wood ash particles from wood gasification into microporous polyurethane elastomers has been investigated and compared to addition of commercially available microspheres resulting from coal burning. Samples were modified with 3 and 6 wt% of fillers. Structure, mechanical, and thermal properties of obtained elastomers were investigated. Incorporation of both types of ash particles decreased the density of polyurethanes simultaneously increasing their tensile strength and elongation at break. Addition of microspheres caused changes in segment structure of polyurethane, which had negative impact on thermal stability. Although the use of ash from wood pyrolysis enhanced thermal stability of elastomers, causing “labyrinth effect”, which inhibited significantly thermal degradation of material. Results of research show that wood ash can be successfully used as a modifier of mechanical and thermal properties in polyurethane elastomers.

Autorzy

• dr inż. Aleksander Hejna link otwiera się w nowej karcie ,
• dr inż. Paulina Kosmela link otwiera się w nowej karcie ,
• Monika Mikicka link otwiera się w nowej karcie ,
• mgr inż. Magdalena Danowska link otwiera się w nowej karcie ,
• dr hab. inż. Łukasz Piszczyk link otwiera się w nowej karcie