Carbon composite high-thermal-conductivity plastic material and preparation method thereof

Abstract

The invention discloses a carbon composite high-performance thermal-conductive plastic and a preparation method thereof; the thermal-conductive insulating plastic is prepared from a resin basic material, a carbon composite material, a thermal-conductive agent, a coupling agent, an antioxidant and other processing agents; by means of the special crystalline structure of the carbon composite material added in the formula of the thermal-conductive insulating plastic disclosed by the invention, the inter-particle bridging effect is realized; a thermal-conductive passage composed of the thermal-conductive agent is more and more perfect; therefore, the thermal conductivity of the composite material can be rapidly increased; a filling material gathering and thermal-conductive passage is more and more perfect; simultaneously, with the help of the processes, such as a pre-mixing process, an extrusion process, a cooling process, an air drying process and a granulating process, the problems of being degraded in high filling property and low in thermal-conductive property of the plastic are solved; the thermal-conductive composite material having excellent mechanical property and good thermal-conductive effect and insulating property can be prepared; and the thermal-conductive composite material can be widely applied in the fields, such as electrons, automobiles and LED (Light Emitting Diode) lamps.

Description

technical field [0001] The invention relates to a polymer material and a preparation method thereof, in particular to a carbon composite high thermal conductivity plastic material and a preparation method thereof, belonging to the fields of polymer material modification and heat dissipation material utilization. Background technique [0002] Poor heat dissipation of LED lights can easily lead to problems such as power supply damage, accelerated light decay, and shortened lifespan. This is always the top priority for improving the performance of LED lighting systems. The traditional three kinds of heat dissipation materials for LED lamp shells are aluminum, plastic and ceramic materials. Aluminum has good thermal conductivity, but it is not easy to pass safety regulations due to its electrical conductivity; plastic has good insulation, but its thermal conductivity and expansion coefficient are relatively low; ceramics have both the advantages of insulation and heat dissipatio...

AI Technical Summary

Problems solved by technology

[0007] The object of the present invention is to address the deficiencies of the above prior art, to provide a carbon composite high-performance thermally conductive plastic and its preparation method, the thermally conductive insulating plastic is composed of a resin base material, a carbon composite material, a thermally conductive insulating filler, a coupling agent and Made of other processing aids, the heat-conducting plastic solves the problems of plastic high-filling performance degradation and low plastic thermal conductivity through pre-mixing, extrusion, cooling, air-drying, pelletizing and other processes. The preparation has excellent mechanical properties, excellent thermal conductivity and insulation Thermally conductive composite materials, widely used in electronics, automobiles, LED lamps and other fields