Study on preparation and properties of carbon nanotubes/rubber composites

The preparation and properties of carbon nanotubes/rubber composites was analyzed. TWo methods were used to prepare the nanocomposites of hydrogenated nitrile rubber (HNBR) matrix. In the first method CNTs was mixed into HNBR directly on a two roll mill with curing agent at 50° C for 10 min, and then the corresponding compound was vulcanized at 170°C through hot pressing. In the second method low molecule liquid HNBR was first dissolved in acetone, subsequently, the surface modified CNTs were added into the solution, and then the ultrasonic dispersion was used on the mixture. Fine dispersion and serious breakage of CNTs resulted in a general electrical conductivity of composite, which was not expected.