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| Naji, M. |
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| Ertürk, Emre |
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| Azevedo, Nuno Monteiro |
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| Rignanese, Gian-Marco |
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Sałasińska, Kamila
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Topics
Publications (7/7 displayed)
- 2021Burning Behaviour of Rigid Polyurethane Foams with Histidine and Modified Graphene Oxidecitations
- 2020Fire behavior of flame retarded unsaturated polyester resin with high nitrogen content additivescitations
- 2019The influence of degree of fragmentation of Pinus sibirica on flammability, thermal and thermomechanical behavior of the epoxy-compositescitations
- 2018Thermal stability, fire behavior, and fumes emission of polyethylene nanocomposites with halogen-free fire retardantscitations
- 2017Natural fiber composites with bio-derivative and/or degradable polymerscitations
- 2016Natural fiber composites: the effect of the kind and content of filler on the dimensional and fire stability of polyolefin-based compositescitations
- 2015The effect of filler chemical constitution and morphological properties on the mechanical properties of natural fiber compositescitations
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article
Burning Behaviour of Rigid Polyurethane Foams with Histidine and Modified Graphene Oxide
Abstract
<jats:p>Since rigid polyurethane (PU) foams are one of the most effective thermal insulation materials with widespread application, it is an urgent requirement to improve its fire retardancy and reduce the smoke emission. The current work assessed the fire behavior of PU foam with non-halogen fire retardants system, containing histidine (H) and modified graphene oxide (GOA). For investigated system, three loadings (10, 20, and 30 wt.%) were used. The Fourier transform infrared spectroscopy (FT-IR), differential scanning calorimetry (DSC), thermogravimetric analysis, cone calorimetry (CC) and smoke density chamber tests as well as pre- and post-burning morphological evaluation using scanning electron microscope (SEM) were performed. Moreover, TGA combined with FT-IR was conducted to determine the substances, which could be evolved during the thermal decomposition of the PU with fire retardant system. The results indicated a reduction in heat release rate (HRR), maximum average rate of heat emission (MAHRE), the total heat release (THR) as well as the total smoke release (TSR), and maximum specific optical density (Dsmax) compared to the polyurethane with commercial fire retardant, namely ammonium polyphosphate (APP). A significantly improvement, especially in smoke suppression, suggested that HGOA system may be a candidate as a fire retardant to reduce the flammability of PU foams.</jats:p>