Citation

Chowdhury SR, Das CK. Fire Mater. 2001; 25(5): 199-202.

Copyright

(Copyright © 2001, John Wiley and Sons)

DOI

unavailable

PMID

unavailable

Abstract

A plastic (EVA) was blended with elastomer (CSM) with and without curatives. The elastomer phase (amorphous) contributed markedly to the shrinkability and most important is, took up a major amount of additive flame-retarding agent thus not affecting much the heat shrinkability of the plastic i.e. as a whole the blend. When the elastomer phase was crosslinked the flame-retardancy, due to a reduction of combustible volatile product, was increased. Additive flame-retardants hamper the heat-shrinkability of the blend to some extent depending on various factors such as blend composition, temperature, curing etc. The depression of shrinkability in the presence of flame-retarding agent was less for the cured sample and elastomer-rich blend compared with the uncured and plastic-rich blend, respectively. It was found that with an increase in the cure time and elastomer content the shrinkabitity as well as flame-retardancy was increased. At high temperature the sacrifice of the shrinkability in the presence of flame-retardants increased, for a particular blend. The shrinkability and flame-retardancy of a cured sample was higher than that of an uncured sample. The highest flame-retardancy was obtained in the presence of Sb2O3/ Chlorohor.