Graphene coated inorganic filler composite resin adhesive material

A technology of graphene coating and inorganic fillers, which is applied in the direction of epoxy resin adhesives, adhesives, adhesive types, etc., can solve the problems of graphene and inorganic fillers that are difficult to compound resin adhesives, difficult to process, etc., and achieve excellent light transmission , short diffusion distance, and convenient operation

Inactive Publication Date: 2016-10-12
SICHUAN WUXIN ENERGY TECH
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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 overcome the shortcomings of the current single epoxy resin matrix, and under a certain filling amount, graphene and inorganic fillers are difficult to be evenly added to the composite resin glue, so that it is difficult to process the shortcomings, providing A graphene-coated inorganic filler composite resin adhesive material with low cost, high thermal and electrical conductivity, and flame-retardant properties that are easy to industrialize and its preparation process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) Put 5g of graphite and 5g of NaNO3 into the flask, add 150ml of sulfuric acid, then add 15g of KMnO4 into the flask, keep the temperature at 30°C and stir for 10 hours. After the reaction is completed, add 200ml of deionized water into the flask to make The temperature rises to 90 ℃ and keeps for 30 minutes, then cools the solution to room temperature, injects 30ml of 30% mass concentration hydrogen peroxide and 700ml of deionized water, washes with water and acid twice, takes out the product, and puts it in a vacuum After drying in a drying oven at 60° C. for 3 hours, graphene oxide is obtained; the graphene is single-layer graphene, or few-layer graphene microflakes.

[0036] (2) First put 20g of whisker-like or nanowire-like inorganic fillers in a vacuum drying oven at 130 oC for 2 hours, then put them into a flask containing 200ml of xylene, install a reflux condensation device, and couple 4ml of titanate The agent was added into the flask and stirred at 150°C f...

Embodiment 2

[0044] (1) Put 5g of graphite and 5g of NaNO3 into the flask, add 150ml of sulfuric acid, then add 15g of KMnO4 into the flask, keep the temperature at 30°C and stir for 10 hours. After the reaction is completed, add 200ml of deionized water into the flask to make The temperature rises to 90 ℃ and keeps for 30 minutes, then cools the solution to room temperature, injects 30ml of 30% mass concentration hydrogen peroxide and 700ml of deionized water, washes with water and acid twice, takes out the product, and puts it in a vacuum After drying in a drying oven at 60° C. for 3 hours, graphene oxide is obtained; the graphene is single-layer graphene, or few-layer graphene microflakes.

[0045] (2) First put 20g of whisker-like or nanowire-like inorganic fillers in a vacuum drying oven at 130 oC for 2 hours, then put them into a flask containing 200ml of xylene, install a reflux condensation device, and couple 4ml of titanate The agent was added into the flask and stirred at 150°C f...

Embodiment 3

[0053] (1) Put 5g of graphite and 5g of NaNO3 into the flask, add 150ml of sulfuric acid, then add 15g of KMnO4 into the flask, keep the temperature at 30°C and stir for 10 hours. After the reaction is completed, add 200ml of deionized water into the flask to make The temperature rises to 90 ℃ and keeps for 30 minutes, then cools the solution to room temperature, injects 30ml of 30% mass concentration hydrogen peroxide and 700ml of deionized water, washes with water and acid twice, takes out the product, and puts it in a vacuum After drying in a drying oven at 60° C. for 3 hours, graphene oxide is obtained; the graphene is single-layer graphene, or few-layer graphene microflakes.

[0054] (2) First put 20g of whisker-like or nanowire-like inorganic fillers in a vacuum drying oven at 130 oC for 2 hours, then put them into a flask containing 200ml of xylene, install a reflux condensation device, and couple 4ml of titanate The agent was added into the flask and stirred at 150°C f...

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Abstract

The invention relates to a graphene-coated inorganic filler composite resin glue material, which comprises the following components in terms of weight fractions: 20-35 parts of a resin matrix, 40-60 parts of graphene-coated inorganic fillers, and 20-30 parts of a curing agent . The composite resin glue adopts composite resin matrix, composite inorganic filler and composite curing agent, which can effectively form a heat conduction path and a conductive network. The product of the present invention has extremely high thermal conductivity and certain flame retardancy. The thermal conductivity of the composite resin glue is greater than 9.0 W / mK, and the electrical conductivity is greater than 37 S / m; it has good heat resistance and certain corrosion resistance. It can be widely used in heat dissipation devices, electronic packaging, electronic equipment, chemical energy, automobile industry, aerospace and other fields.

Description

technical field [0001] The invention belongs to the field of polymer composite materials, and in particular relates to a highly thermally conductive graphene-coated inorganic filler composite resin glue material and a preparation method thereof. Background technique [0002] Graphene is a two-dimensional crystal that is exfoliated from graphite and composed of carbon atoms with only one layer of atomic thickness. This endows graphene with unique thermal properties. It has been reported in the literature that the in-plane thermal conductivity of single-layer graphene has reached the range of 4800-5300 W / mk measured by confocal micro-Raman spectroscopy at room temperature. As a new type of nanomaterial with the thinnest, strongest, and strongest electrical and thermal conductivity found so far, graphene is called "black gold". Therefore, graphene is used to enhance the electrical and thermal conductivity of polymers. [0003] High-performance electronic devices use materials...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J181/06C09J11/04C09J11/08C09J9/02
CPCC09J163/00C08K2201/001C08K2201/011C08K2201/014C08L2201/08C08L2205/025C08L2205/035C09J9/02C09J11/04C09J11/08C08L63/00C08L81/06C08L79/08C08L61/00C08K13/06C08K9/04C08K9/10C08K3/04C08K7/06C08K7/08
Inventor 俞国宏
Owner SICHUAN WUXIN ENERGY TECH
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