Elastomers reticulation by a new imidazole accelerator. The influence of some retarders

The study was devoted to the investigation of the effect of several pre vul canization retarders (inhibitors) in vulcanization of dienic elastomers usi ng sulphur associated with a new accelerator with imidazoline structure. Ev aluation of the efficiency of studied retarders was based on the following characteristics: (i) scorching time T-5, determined by a Mooney viscometer in the temperature range usual in rubber processing and (ii) scorching time T-2, determined by Monsanto Rheometer in the temperature range usual in vu lcanization process. At the same time, main physical characteristics (tensi le characteristics) of vulcanizates have been determined. The obtained resu lts allow a selection of the most appropriate retarder type for compounds b ased on a given diene elastomer.