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Evaluation of the fire‐retardant properties of new modifiers in unsaturated polyester resins using the cone calorimetric method
Author(s) -
KickoWalczak Ewa
Publication year - 2003
Publication title -
macromolecular symposia
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.257
H-Index - 76
eISSN - 1521-3900
pISSN - 1022-1360
DOI - 10.1002/masy.200351219
Subject(s) - cone calorimeter , fire retardant , materials science , zinc borate , smoke , zinc , polyester , composite material , pyrolysis , calorimetry , organic chemistry , char , chemistry , metallurgy , physics , thermodynamics
An investigation of the burning behaviour of a series of unsaturated polyester resin formulations has been carried out using the Cone calorimeter technique. A complex analysis of the pyrolysis of selected glass‐reinforced polyester (GRP) laminates was made based on fire‐nonretarded, fire‐retarded and smoke suppressed compositions of unsaturated polyester resins (UPR) by the use of mixtures of zinc hydroxystannate ZnSn(OH) 6 , (ZHS), zinc stannate ZnSnO 3 (ZS) and zinc borate or zinc molybdate. The heat release (average) rate (HRR and HRR av ), time required to ignite a GRP, the mass loss rate and (average) surface extinction area (SAE and SAE av ) were studied in relation to thermal irradiation power and to presence or absence of a fire retardant. The cone calorimeter is shown to enable all the stages of pyrolysis of GRP involving combustion and smoke emission to be analyzed, and confirmed the good effects of Zn/Sn systems as a fire retardant additives for UPR.