Graphene heat conductive plastic and preparation method thereof

Abstract

The invention provides a graphene heat conductive plastic and a preparation method thereof, relates to the technical field of heat conductive plastics, and specifically designs the graphene heat conductive plastic and the preparation method thereof. The graphene heat conductive plastic comprises the following components in percentages: 2%-10% of modified graphene, 88%-96% of organic synthetic resin, 0.1%-1% of a plasticizer, and 0.2%-2% of an auxiliary agent. The method for preparing the graphene heat conductive plastic comprises the following steps: a, preparing the modified graphene; and b,preparing the graphene heat conductive plastic: uniformly mixing 2%-10% of the modified graphene, 88%-96% of the organic synthetic resin, 0.1%-1% of the plasticizer and 0.2%-2% of the auxiliary agent,adding the mixed material into a twin-screw extruder barrel, performing a melt reaction at the temperature of 180-300 DEG C for mixing, and performing extrusion granulation in the twin-screw extruderbarrel to obtain the graphene heat conductive plastic. The graphene heat conductive plastic and preparation method thereof provided by the invention have the beneficial effects that the graphene heatconductive plastic has a simple structure, can achieve higher thermal conductivity under the condition of a low graphene content, and is beneficial to meeting packaging requirements of current products such as electronic products; and the method employs a simple preparation process.

Description

technical field [0001] The invention relates to the technical field of heat-conducting plastics, and specifically designs a graphene heat-conducting plastic and a preparation method thereof. Background technique [0002] Graphene is a honeycomb planar film formed by sp2 hybridization of carbon atoms. It is a quasi-two-dimensional material with only one atomic layer thickness, so it is also called monoatomic layer graphite. The common powder production methods of graphene are mechanical exfoliation method, redox method, and SiC epitaxial growth method, and the film production method is chemical vapor deposition (CVD). As a new type of nanomaterial with the thinnest, strongest, and strongest electrical and thermal conductivity found so far, graphene is called black gold and is the king of new materials. Scientists even predict that graphene will completely change the 21st century. It is very likely to set off a disruptive new technology and new industry revolution sweeping th...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to aim at the defects and deficiencies of the prior art, to provide a graphene heat-conducting plastic and its preparation method, which can solve the problem that the current heat-conducting plastics have low thermal conductivity, relatively high production cost, and are difficult to meet the requirements of packaging of modern electronics and other products. deficiency of needs