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Cone calorimetric and thermogravimetric analysis evaluation of halogen‐containing polymer nanocomposites
Author(s) -
Wang Dongyan,
Echols Kandice,
Wilkie Charles A.
Publication year - 2005
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.885
Subject(s) - thermogravimetric analysis , bromine , nanocomposite , polypropylene , materials science , polymer , calorimetry , differential scanning calorimetry , cone calorimeter , halogen , polymer chemistry , polystyrene , chemical engineering , composite material , chemistry , organic chemistry , combustion , physics , char , alkyl , engineering , metallurgy , thermodynamics
Halogen‐containing organically modified clay nanocomposites have been prepared and it was found that the presence of bromine enhances the fire retardancy of polystyrene and polypropylene nanocomposites, compared with the virgin polymers. The nanocomposites were evaluated by X‐ray diffraction (XRD), thermogravimetric analysis (TGA) and cone calorimetric measurements. The UL‐94 test gave a V‐0 rating for some samples while cone calorimetry gave a reduced PHRR. Both the amount and identity of the bromine‐containing compound and the mode of preparation, which controls the dispersion, have a significant effect on the results. Bromine‐containing materials, at very low loading, approximately 6% or less bromine, give excellent results when the clay loading was about 3%. Copyright © 2005 John Wiley & Sons, Ltd.