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.
|Titolo:||Elastomeric compounds with silica. Lower hysteresis in the presence of functionalised isoprene oligomers|
|Autori interni:||DI SILVESTRO, GIUSEPPE|
|Parole Chiave:||atomic force microscopy ; complex viscosity ; compounds ; functional oligomers ; Payne effect ; polyisoprene ; silica|
|Settore Scientifico Disciplinare:||Settore CHIM/04 - Chimica Industriale|
|Data di pubblicazione:||2006|
|Digital Object Identifier (DOI):||10.1002/masy.200650226|
|Appare nelle tipologie:||01 - Articolo su periodico|