▎ 摘　　要

NOVELTY - Preparation of graphene-nylon composite material involves preparing graphene concentrate by graphene preparation device, diluting graphene concentrate with water, dispersing, ultrasonically shaking to obtain graphene dispersion, oxidizing, adding nylon monomer, introducing nitrogen gas, stirring uniformly, polymerizing graphene and nylon, cooling polymer and post-processing. The graphene preparation device has fixing frame, moving frame, cam, reaction chamber, stirring device, moving device, microwave heater, feed pipe, discharge pipe, cooling device and motor. The moving frame is located inside fixed frame, and is provided to drive stirring device to move up and down. The cam is located in fixed frame, and is provided for moving the moving frame up and down. The motor is fixed in fixing frame, and is provided to drive cam to rotate. The reaction chamber is fixed at bottom of fixing frame, and is provided for preparing graphene. USE - Preparation of graphene-nylon composite material. DETAILED DESCRIPTION - Preparation of graphene-nylon composite material involves preparing graphene concentrate by graphene preparation device, diluting graphene concentrate with water, dispersing, ultrasonically shaking to obtain graphene dispersion, oxidizing, adding nylon monomer, introducing nitrogen gas, stirring uniformly, polymerizing graphene and nylon at constant temperature and pressure, cooling polymer and post-processing. The graphene preparation device has a fixing frame, a moving frame, a cam, a reaction chamber, a stirring device, a moving device, a microwave heater, feed pipe, discharge pipe, cooling device and motor. The moving frame is located inside the fixed frame, and is provided to drive the stirring device to move up and down. The cam is located in the fixed frame, and is provided for moving the moving frame up and down. The motor is fixed in the fixing frame, and is provided to drive the cam to rotate. The reaction chamber is fixed at the bottom of the fixing frame, and is provided for preparing graphene. The reaction chamber is provided with a feed port and discharge port. The feed port is located on the right side of the reaction chamber. The discharge port is located on the left side of the reaction chamber. The stirring device is located in the reaction chamber, and is used for stirring the reactants. The moving device is located in the moving frame, and drives stirring device to move. The microwave heater is fixed on the inner wall of the reaction chamber, and is provided for heating the reactants. The feed pipe is located on the right side of the reaction chamber, and arranged in communication with the feed port. The feed port is used for the addition of the reactants. The discharge pipe is located at the lower left of the reaction chamber, and is in communication with the discharge port. The discharge port is used for discharging the reaction product. The cooling device is located in the fixing frame.