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Open AccessArticle

Fire Suppression and Thermal Behavior of Biobased Rigid Polyurethane Foam Filled with Biomass Incineration Waste Ash

1
Faculty of Civil Engineering, Institute of Building Materials, Laboratory of Thermal Insulating Materials and Acoustics, Vilnius Gediminas Technical University, Linkmenu st. 28, LT-08217 Vilnius, Lithuania
2
Institute of Polymer and Dye Technology, Lodz University of Technology, Stefana Żeromskiego 116, 90-924 Lodz, Poland
*
Author to whom correspondence should be addressed.
Polymers 2020, 12(3), 683; https://doi.org/10.3390/polym12030683
Received: 23 January 2020 / Revised: 5 March 2020 / Accepted: 6 March 2020 / Published: 19 March 2020
Currently, there is great demand to implement circular economy principles and motivate producers of building materials to integrate into a closed loop supply chain system and improve sustainability of their end-product. Therefore, it is of great interest to replace conventional raw materials with inorganic or organic waste-based and filler-type additives to promote sustainability and the close loop chain. This article investigates the possibility of bottom waste incineration ash (WA) particles to be used as a flame retardant replacement to increase fire safety and thermal stability under higher temperatures. From 10 wt.% to 50 wt.% WA particles do not significantly deteriorate performance characteristics, such as compressive strength, thermal conductivity, and water absorption after 28 days of immersion, and at 32 °C WA particles improve the thermal stability of resultant PU foams. Furthermore, 50 wt.% WA particles reduce average heat release by 69% and CO2 and CO yields during fire by 76% and 77%, respectively. Unfortunately, WA particles do not act as a smoke suppressant and do not reduce smoke release rate. View Full-Text
Keywords: polyurethane foam; fire resistance; thermal stability; carbon footprint; biomass waste ash polyurethane foam; fire resistance; thermal stability; carbon footprint; biomass waste ash
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MDPI and ACS Style

Kairytė, A.; Kremensas, A.; Vaitkus, S.; Członka, S.; Strąkowska, A. Fire Suppression and Thermal Behavior of Biobased Rigid Polyurethane Foam Filled with Biomass Incineration Waste Ash. Polymers 2020, 12, 683.

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