Repozytorium publikacji - Politechnika Gdańska

Flexible polyurethane foams were obtained from a two-component system via the one-step method. The foams were modified with thermally reduced graphene oxide added in the amount equal to 0.25, 0.5 and 0.75 wt%. The morphology, static and dynamic properties, and thermal stability of modified foams were determined. The application of carbon filler resulted in the visible increase in the cell size, apparent density and rigidity of the modified systems, as confirmed by the measurements of glass transition temperature. Glass transition temperature increased with increasing content of nanofiller. Also, thermally reduced graphene oxide had an effect on the thermal stability of the obtained foam systems. The addition of 0.5 wt% of nanofiller resulted in an increase in T5 by 16ºC compared to the reference foam. This study also demonstrated that after exceeding a specific content of thermally reduced graphene oxide, i.e. 0.5%, the physicochemical properties of the obtained systems start to deteriorate. The research results showed that thermally reduced graphene oxide can be successfully used as a modifier of mechanical and thermal properties in flexible polyurethane foams.

Autorzy

• dr hab. inż. Łukasz Piszczyk link otwiera się w nowej karcie ,
• dr hab. inż. Michał Strankowski link otwiera się w nowej karcie ,
• dr inż. Paulina Kosmela link otwiera się w nowej karcie