Rigid and flexible polyurethane foams (PUR and PUF) typically exhibit low thermal inertia, resulting in extremely short ignition times and rapid flame spreads. Topics such as enhanced thermal insulation for buildings or household appliance, foamed materials for light weight construction, and the application in upholstery and seat cushions in transportation, speed up the application of PU-foams. New ideas for the flame-retardant PU-foams keep us busy in several research projects in cooperation with industry and international research institutions, as it is in part documented in a row of resulting scientific papers. Whereas the chosen paper of the month March 2020 summarized a part of our fundamental scientific work describing the typical phenomena controlling the characteristic fire behaviour of PUR foams. By the means of key experiments and the investigation of systematically varied sets of PUR foams we improved the understanding of the ignition and combustion, as well as of the role of the thermal insulation during the fire.
Fire Phenomena of Rigid Polyurethane Foams
Martin Günther, A. Lorenzetti, Bernhard Schartel
published in Polymers, Vol. 10, Issue 10, pages 1166-1 - 1166-22, 2018
BAM, Technical Properties of Polymeric Materials division