In-situ polymerizing preparation technology of graphene nylon composite material

Abstract

The invention belongs to the technical field of macromolecular composite materials, and particularly discloses an in-situ polymerizing preparation technology of a graphene nylon composite material. Agraphene preparation device adopted by the in-situ polymerizing preparation technology comprises a fixed framework, a movable framework, a cam, a reaction cavity, a stirring device, a movable device,a plurality of microwave heaters, a material charge pipe, a material discharge pipe and a cooling device, wherein the movable framework is positioned in the fixed framework; the cam is positioned in the fixed framework; the reaction cavity is fixedly arranged at the bottom part of the fixed framework, and is provided with a material inlet and a material outlet; the material inlet is positioned atthe right side of the reaction cavity; the material outlet is positioned at the left side of the reaction cavity; the stirring device is positioned in the reaction cavity; the movable device is positioned in the movable framework, and is used for driving the stirring device to move; the multiple microwave heaters are fixedly arranged at the inner wall of the reaction cavity; the material charge pipe is positioned at the right side of the reaction cavity; the material discharge pipe is positioned at the left lower part of the reaction cavity; the cooling device is positioned in the fixed framework, and is positioned besides the material discharge pipe.

Description

technical field [0001] The invention belongs to the technical field of polymer composite materials, and specifically relates to an in-situ polymerization preparation process of graphene nylon composite materials. Background technique [0002] Nylon material has good comprehensive properties, such as mechanical properties, heat resistance, wear resistance, chemical resistance and self-lubrication, low friction coefficient, certain flame retardancy, easy processing, widely used in spinning, chemical industry , instruments, automobiles and other fields. Due to its unique planar two-dimensional structure, graphene has excellent mechanical properties and structural rigidity. Due to its high conductivity, high strength, ultra-thin and other characteristics, it is widely used in catalysts, electrode materials, water treatment, sensors, biological materials, etc. field. Oxygen-containing functional groups are distributed on the surface of graphene oxide, which can react with funct...

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Problems solved by technology

However, during the preparation of the graphene concentrate, graphite and concentrated sulfuric acid cannot be stirred and mixed evenly, and the tiny graphite particles deposited at the bottom of the reaction chamber will be mixed into the graphene concentrate after the reaction, so that the graphene concentrate does not Pure; at the same time, the existing graphene production equipment cannot effectively cool the graphene concentrate, which delays the production rhythm and hinders the development of the graphene industry; in addition, because graphene is easy to reunite in the dispersion medium, graphene cannot Very well dispersed in nylon, material properties and functions are limited

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