THE EFFECT OF THE CURING AGENT TYPE ON THE FLAMMABILITY OF BUTADIENE-ACRY-LONITRILE RUBBERS

摘要

The flammability of butadiene-acrylonitrile rubbers,containing 18 or 39 wt.% of AN (NBR 18 and NBR 39,respectively),has been investigated before and after curing with dicumyl peroxide,sulfur or iodoform.The oxygen index method(07)(Table 1)and cone calorimetry(Table 2,Fig.1-4)were applied.The toxicity of gaseous products of thermal decomposition and combustion of vulcanizates,described by the values of RTFH_(CO/CO2)(Table 3)and W_(LCSOSM)(Table 4)indices,has been evaluated.