Study on Properties of Pre-dispersed MWCNTs/EPDM Composites
The vulcanization characteristics,physical properties and conductivity performance of the pre-dispersed multi-walled carbon nanotubes(MWCNTs)/ethylene-propylene-diene rubber(EPDM)composites were studied by using the pre-dispersed MWCNTs as conductive fillers.The results showed that compared with the MWCNTs/EPDM composite,the t90 of the pre-dispersed MWCNTs/EPDM composite was significantly shorted,the Mooney viscosity decreased,and the vulcanization efficiency and processing properties were improved.The tensile strength,elongation at break,tear strength and compression set of the pre-dispersed MWCNTs/EPDM composite increased,while the tensile stress at 100%elongation and rebound value decreased.The pre-dispersed MWCNTs/EPDM composite had a more obvious conductive percolation phenomenon and improved conductivity performance.
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