Silica as reinforcing filler brings about a low hysteresis in elastomeric compounds. Aim of this work was to promote a better silica-elastomer interaction by using, as minor ingredients of a compound, isoprene oligomers having a functional group as the chain end. The effect of the functionality was investigated by analysing the complex viscosity of silica-oligomers binary mixtures as well as the morphological and rheological properties of masterbatches and compounds based on isoprene rubbers. A better silica dispersion and a lower Payne effect were clearly observed in the presence of functionalized oligomers.
Elastomeric compounds with silica. Lower hysteresis in the presence of functionalised isoprene oligomers / M. Galimberti, G. Melillo, F. Baione, F. Negroni, S. Pennati, L. Spadacini, G. Di Silvestro. - In: MACROMOLECULAR SYMPOSIA. - ISSN 1022-1360. - 234(2006), pp. 203-210.
Elastomeric compounds with silica. Lower hysteresis in the presence of functionalised isoprene oligomers
G. Di Silvestro
2006
Abstract
Silica as reinforcing filler brings about a low hysteresis in elastomeric compounds. Aim of this work was to promote a better silica-elastomer interaction by using, as minor ingredients of a compound, isoprene oligomers having a functional group as the chain end. The effect of the functionality was investigated by analysing the complex viscosity of silica-oligomers binary mixtures as well as the morphological and rheological properties of masterbatches and compounds based on isoprene rubbers. A better silica dispersion and a lower Payne effect were clearly observed in the presence of functionalized oligomers.Pubblicazioni consigliate
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