CARBON FIBER COMPOSITE MATERIAL COMPRISING ELASTOMER AND CARBON NANOFIBER DISPERSED IN THE ELASTOMER, AND PREPARATION METHOD THEREOF

摘要

PURPOSE: A carbon fiber composite material and its preparation method are provided, to improve the dispersion of a carbon nanofiber in an elastomer and the dispersion stability of the carbon fiber composite material. CONSTITUTION: The carbon fiber composite material comprises an elastomer and a carbon nanofiber dispersed in the elastomer, wherein the elastomer has an unsaturated bond or group having an affinity to the carbon nanofiber. Preferably the elastomer has a weight average molecular weight of 5,000-5,000,000, and contains at least one selected from the group consisting of a double bond, a triple bond, an -hydrogen, a carbonyl group, a carboxyl group, a hydroxyl group, an amino group, a nitrile group, a ketone group, an amide group, an epoxy group, an ester group, a vinyl group, a halogen atom, a urethane group, a biuret group, an allophanate group and a urea group, in at least one of a main chain, a side chain and a terminal chain.