Dynamic mechanical properties and morphology of silica-reinforced butadiene rubber by the sol-gel process
1997
Dynamic mechanical properties of high-cis butadiene rubber were investigated. The butadiene was grafted with alkoxysilane monomer and reinforced with in situ-formed silica by the sol-gel process. Tan 6 at room temperature was not increased with growing silica content. A homogeneous dispersion of very small silica particles was found by TEM observation. These results suggest that well-dispersed silica particles are effective not only as reinforcing fillers, but also as crosslinking points which give rise to an elastomeric network structure of low dynamic loss.
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