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The effect of nitrile rubber (NBR) on the properties of silica-filled natural rubber (NR) compounds was studied in the presence of a new silane coupling agent, 3-octanoylthio-1-propyltriethoxysilane (NXT). The properties of silica-filled NR compounds were improved by adding NBR. The torque at equilibrium of compounds decreased with increasing NBR content. The dispersion of silica was improved by adding...
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