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Intrinsic flame resistance of polyurethane flexible foams: Unexpectedly low flammability without any flame retardant
Author(s) -
Höhne CarlChristoph,
Hanich Ronny,
Kroke Edwin
Publication year - 2018
Publication title -
fire and materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.482
H-Index - 58
eISSN - 1099-1018
pISSN - 0308-0501
DOI - 10.1002/fam.2504
Subject(s) - flammability , polyurethane , fire retardant , limiting oxygen index , materials science , composite material , flammable liquid , ignition system , flame spread , cone calorimeter , fire resistance , combustion , autoignition temperature , char , waste management , chemistry , engineering , organic chemistry , aerospace engineering
Summary Virgin polyurethane flexible foams are widely assumed to be highly flammable materials. The flammability of three model polyurethane flexible foams suggests that this may not be universally true. Two of them show unexpectedly low flammability in the limiting oxygen index test and pass flammability tests such as FMVSS 302 and FAR 25.853. Cone calorimetric measurements at 25 kW/m 2 and 50 kW/m 2 furthermore show a high resistance against ignition and demonstrate the self‐extinguishing properties of these two virgin, flame‐retardant‐free, polyurethane flexible foams.