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High-performance tires based on graphene coated with Zn-free coupling agents
서진관,이충경,이동주,송성호 한국공업화학회 2018 Journal of Industrial and Engineering Chemistry Vol.66 No.-
Silica has recently attracted attention as reinforcing filler for tread formulations leading to lower rolling resistance and hysteretic losses with the development of “green tires” in the tire industry. Due to the poor compatibility of hydrophilic silica with a hydrophobic rubber, zinc-free coupling agents (ZFCs) are required to satisfy environmental concerns. In this work, we synthesized ZFCs and ZFCs-functionalized graphene (GZFCs), and fabricated GZFCs-embedded SBR with remarkable enhancement in mechanical, thermal, and electrical properties. The GZFCs-rubber composite showed enhanced dry and wet braking and rolling resistance due to enhanced dispersion and strong interfacial interaction of GZFCs in the silica/rubber matrix.