▎ 摘　　要

NOVELTY - Preparing polymer/graphene/carbon nano-tube composite material involves taking ultrasonic graphite oxide, dispersing in water, centrifuging to obtain clay-bank graphene oxide suspension, adding ammonia water and hydrazine hydrate to chemical reduction to prepare graphene suspension. The pH of graphene, carbon nano tube and polystyrene micro-sphere ultrasonic dispersion is 1.5-3.0 of acid aqueous solution, and dispersed uniformly to obtain suspension. Three suspension are mixed ultrasonically for 0.5-2 hours, and mixed solution pH is adjusted to 6. USE - Method for preparing polymer/graphene/carbon nano-tube composite material (claimed). ADVANTAGE - The method enables to prepare polymer/graphene/carbon nano-tube composite material that has excellent conductivity. DETAILED DESCRIPTION - Preparing polymer/graphene/carbon nano-tube composite material involves taking ultrasonic graphite oxide, dispersing in water, centrifuging to obtain clay-bank graphene oxide suspension, adding ammonia water and hydrazine hydrate to chemical reduction to prepare graphene suspension. The pH of graphene, carbon nano tube and polystyrene micro-sphere ultrasonic dispersion is 1.5-3.0 of acid aqueous solution, and dispersed uniformly to obtain suspension. Three suspension are mixed ultrasonically for 0.5-2 hours, and mixed solution pH is adjusted to 6 by dripping alkaline solution by electrostatic attraction. The graphene and carbon nano tube is uniformly coated to polystyrene microspheres surface to obtain polystyrene/graphene/carbon nano tube hybrid. The ternary hybrid obtained is directly subjected to hot pressing process lower to obtain polystyrene/graphene/carbon nano-tube composite material.