Abstract
Inorganic particles have been common fillers for processing butyl rubber (IIR). Studying the effect of inorganic particles on the molecular motions of IIR was important to both relevant theory and applications. In this paper, the morphology and dynamics of IIR/silica, IIR/carbon black and IIR/Fe3O4 blends were studied. It was found that silica was homogenously dispersed in IIR and it suppressed the molecular motions of IIR at all loads. In addition, the carbon black with a low load averagely dispersed in IIR and suppressed the molecular motions of IIR; however, it agglomerated and the suppression was weakened as the load was increased. Moreover, Fe3O4 had nearly no influence on the molecular motions of IIR.
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