Citation

Murashko EA, Levchik GF, Levchik SV, Bright DA, Dashevsky S. J. Fire Sci. 1998; 16(4): 278-296.

Copyright

(Copyright © 1998, SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

The combustion performance of polycarbonate (PC), ABS or PC/ABS blend fire retarded by resorcinol bis(diphenyl phosphate) (RDP) was studied by LOI and UL94 tests. It was shown that RDP is active in pure PC but shows weak or moderate efficiency in ABS and PC/ABS. Various co-additives which are expected to contribute to vapor or condensed phase fire retardant mechanisms were tested in PC/ABS containing RDP or PC/ABS/RDP containing novolak. Non-dripping formulations with marginal V-1/V-0 UL94 rating; and improved LOI were identified. In accordance with the combustion study, thermogravimetry suggests that condensed phase co-additives are preferable for improvement of RDP performance in PC/ABS.