Citation

Menon ARR. J. Fire Sci. 1997; 15(1): 3-13.

Copyright

(Copyright © 1997, SAGE Publishing)

DOI

unavailable

PMID

unavailable

Abstract

Natural rubber (NR) in a typical semi-efficient vulcanization system was modified with flame-retardant additives such as bromo derivative of phosphorylated cashew nut shell liquid, antimony trioxide and alumina trihydrate (ATH). Improvement in the flame retardancy of the vulcanizates was shown bg the progressive increase in Limiting Oxygen Index with the concentration of ATH. Besides, the smoke density and the smoke release rate were reduced substantially in the presence of 100 phr of ATH in the vulcanizate. Thermogravimetric analysis showed higher activation energy for decomposition and higher yields of decomposition residue for the ATH-filled NR vulcanizates. Also, the vulcanizate modified with the flame retardants showed improvements in tensile and tear strengths in presence of 50 phr of the filler.