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High-thermal-conductivity insulating plastic

An insulating plastic and high thermal conductivity technology, applied in the field of insulating materials, can solve the problems of poor thermal conductivity and insulation performance, achieve good insulation, improve air permeability, and enhance the effect of heat conduction

Inactive Publication Date: 2019-01-11
FOSHAN WANHE NEW ENERGY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to provide a high thermal conductivity insulating plastic for the problems of poor thermal conductivity and insulation performance of commonly used plastics

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] A preparation method for a composite thermally conductive base material, comprising the steps of:

[0033] (1) Take expanded graphene and add N,N-dimethylformamide in a container at a mass ratio of 1:30~50, mix it in a container, stir at a high speed of 3000~5000r / min for 20~45min, and then move it to an ultrasonic oscillator for 45~ Ultrasonic treatment at a frequency of 55kHz for 20-35min to obtain a dispersion liquid. After standing still at room temperature for 1-3h, take the dispersion liquid and filter it, take the filter residue and wash it with water for 3-5 times, then move it to an oven at 70-90°C for drying to obtain micro-nano graphite flakes. 40~60℃, take polyvinylidene fluoride and add N,N-dimethylformamide at a mass ratio of 1:10~15, mix and stir for 20~45min, add micro-nano graphite flakes 3~6 times the mass of polyvinylidene fluoride and mix , ultrasonic treatment at 45~55kHz for 15~25min, adding water 4~8 times the mass of polyvinylidene fluoride to mi...

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Abstract

The invention discloses a high-thermal-conductivity insulating plastic, belonging to the field of insulating materials. According to the invention, expanded graphite is peeled into micro-nano graphitesheets by using an ultrasonic treatment method so as to improve dispersity; then zinc citrate produced by a reaction of zinc nitrate and citric acid monohydrate is used as a precursor; then the surface of a filler is coated with zinc oxide to prepare a core-shell structure, so the coated filler has improved wettability with phenolic resin and the like, and the thermal conductivity of a system isfurther improved; the filler composed of alumina and zinc oxide and used in the invention is non-conductive in a non-melted state and can provide good insulation performance; and when the filler is used in combination with aramid fibers having benzene ring and amide bond structures, better insulation performance can be provided. The high-thermal-conductivity insulating plastic of the invention solves the problem of poor heat conduction and insulation performance of commonly used plastics at present.

Description

technical field [0001] The invention belongs to the field of insulating materials, and in particular relates to a high thermal conductivity insulating plastic. Background technique [0002] With the advancement of science and technology, people's requirements for thermally conductive materials have been further improved. Light weight, easy processing and molding, impact resistance, chemical corrosion resistance, thermal fatigue resistance, excellent electrical insulation performance and chemical stability, etc. New requirements for thermally conductive materials. Compared with metal materials, polymer materials have the advantages of low price, corrosion resistance, easy molding, and good mechanical properties. At the same time, products of various shapes can be made by injection molding without secondary molding and surface treatment, greatly improving The cost of electronic and electrical products is reduced. However, polymer materials are poor conductors of heat, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L27/16C08L61/06C08L33/26C08L39/06C08L77/10C08K3/04C08K5/11C08K5/12C08K9/06C08K9/02C08K3/22C08K3/34
CPCC08K2003/2227C08K2003/2296C08K2201/011C08L27/16C08L2205/035C08L2205/16C08L61/06C08L33/26C08L39/06C08L77/10C08K3/046C08K5/11C08K5/12C08K9/06C08K9/02C08K3/22C08K3/34
Inventor 裘友玖陈建春庞成荣
Owner FOSHAN WANHE NEW ENERGY TECH CO LTD
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