| 摘要 |
The invention concerns a method for improving final dispersion of fillers in hydrocarbon elastomers which consists, during the preparation of the elastomers, in introducing a diguanidine with the fillers and the olefin polymers. The resulting inventive raw mixtures filled with silica have a lower viscosity. The final dispersion of the silica in the resulting inventive vulcanizates, evaluated by roughness measurement is markedly enhanced. The hysteresis of the resulting inventive vulcanizates is reduced to 30 DEG C and 80 DEG C. The method enables to obtain rubbers with improved properties, useful in particular for making tyres.
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