Evaluation of some arylphosphites as antioxidants and antifatigue agents in natural rubber and styrene-butadiene rubber vulcanizates

摘要

Seven arylphosphites were synthesized and incorporated into natural rubber(NR)and styrene-butadiene rubber(SBR)mixes. The rheometric characteristics of the rubber mixes determined using an oscillating disc rheometer. The prepared compounds Were evaluated as antioxidants and antifatigue agents in NR and SBR vulcanizates. It was found that the prepared componds are Good antioxidants and antifatigue agents and their efficiency is higher than that of the commercial 4-methyl-2,6-di-ter-butyl phe- Nol.