Abstract
A simple and efficient method is developed to incorporate nanosilica (NS) into styrene-butadiene rubber (SBR) without using any coupling agents. Sodium isopropyl xanthate modified nanosilica (SIPX-NS) is homogeneously dispersed into SBR to give a better filler-rubber interaction. The SIPX-NS accelerates sulphur vulcanization leading to excellent mechanical properties for SBR composites. An obvious improvement in overall properties of SBR by the incorporation of nanosilica modified with a vulcanizing accelerator is showcased in this work. This brings new opportunities for the rubber composites with high-performance applications. The tensile strength and thermal stability of SBR 6SIPX-NS composite has been improved by 53% and 11 °C respectively compared to SBR gum composite.
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