Preparation method of thermal conductive electrical insulating material

A heat-conducting insulating material, high-density polyethylene technology, applied in the direction of organic insulators, plastic/resin/wax insulators, etc., can solve the problems of reduced product efficacy and shortened life, and achieve good mechanical properties and good thermal conductivity.

Inactive Publication Date: 2015-11-18
ENG EQUIP CO LTD SUZHOU SAI SIDE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the continuous development of electronic products and LEDs in the direction of high power, more and more heating problems will appear, which will reduce the efficacy of products and shorten their lifespan.

Method used

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  • Preparation method of thermal conductive electrical insulating material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing a thermally conductive insulating material, comprising the steps of:

[0018] Step 1, in parts by weight, take 20 parts of high-density polyethylene, 10 parts of linear low-density polypropylene, 4 parts of nitrile rubber, 1 part of dibutyl sebacate, 2 parts of ethyl acetoacetate, two parts of methacrylic acid 1 part of methyl amino ethyl ester, 3 parts of polyamide resin, 2 parts of polyvinyl acetate, 2 parts of hydroxyl silicone oil, 1 part of talcum powder, 2 parts of stearic acid, 3 parts of alumina fiber, 1 part of coupling agent KH-5501, Heat and stir to mix;

[0019] Step 2, ball milling and drying the mixed material obtained in step 1 to obtain a dried product;

[0020] Step 3, add the dried product obtained in step 2 into a twin-screw extruder, extrude, granulate, and cool to obtain.

[0021] In step 1, the heating temperature is 50° C., and the stirring speed is 400 rpm.

[0022] In step 3, the extrusion temperature of the twin-screw ...

Embodiment 2

[0024] A method for preparing a thermally conductive insulating material, comprising the steps of:

[0025] Step 1, in parts by weight, take 23 parts of high-density polyethylene, 17 parts of linear low-density polypropylene, 6 parts of nitrile rubber, 2 parts of dibutyl sebacate, 4 parts of ethyl acetoacetate, two parts of methacrylic acid 5 parts of methyl amino ethyl ester, 5 parts of polyamide resin, 5 parts of polyvinyl acetate, 6 parts of hydroxyl silicone oil, 3 parts of talcum powder, 4 parts of stearic acid, 7 parts of alumina fiber, 3 parts of coupling agent KH-5503, Heat and stir to mix;

[0026] Step 2, ball milling and drying the mixed material obtained in step 1 to obtain a dried product;

[0027] Step 3, add the dried product obtained in step 2 into a twin-screw extruder, extrude, granulate, and cool to obtain.

[0028] In step 1, the heating temperature is 65° C., and the stirring speed is 300 rpm.

[0029] In step 3, the extrusion temperature of the twin-sc...

Embodiment 3

[0031] A method for preparing a thermally conductive insulating material, comprising the steps of:

[0032] Step 1, in parts by weight, take 30 parts of high-density polyethylene, 20 parts of linear low-density polypropylene, 7 parts of nitrile rubber, 5 parts of dibutyl sebacate, 5 parts of ethyl acetoacetate, dimethacrylate 6 parts of methyl amino ethyl ester, 7 parts of polyamide resin, 6 parts of polyvinyl acetate, 7 parts of hydroxyl silicone oil, 5 parts of talcum powder, 6 parts of stearic acid, 8 parts of alumina fiber, 3 parts of coupling agent KH-5503, Heat and stir to mix;

[0033] Step 2, ball milling and drying the mixed material obtained in step 1 to obtain a dried product;

[0034] Step 3, add the dried product obtained in step 2 into a twin-screw extruder, extrude, granulate, and cool to obtain.

[0035] In step 1, the heating temperature is 65° C., and the stirring speed is 300 rpm.

[0036] In step 3, the extrusion temperature of the twin-screw extruder is...

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PUM

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Abstract

The invention discloses a preparation method of a thermal conductive electrical insulating material. The preparation method comprises carrying out heating stirring mixing on high density polyethylene, linear low density polypropylene, nitrile rubber, dibutyl sebacate, ethyl acetoacetate, dimethylaminoethyl methacrylate, polyamide resin, polyvinyl acetate, hydroxyl silicone oil, powdered steatile, stearic acid, a filler and a coupling agent, carrying out ball milling and drying on the mixture, adding the dried mixture into a double screw extruder, carrying out extrusion, and carrying out granulation and cooling. The thermal conductive electrical insulating material has good mechanical properties and heat conduction performances.

Description

technical field [0001] The invention belongs to the technical field of polymer materials, and in particular relates to a preparation method of a thermally conductive insulating material. Background technique [0002] Thermally conductive materials are widely used in various fields of national defense industry and national economy. Traditional thermal conductive materials are mostly metals such as Au, Ag, Cu, Al, Mg, etc., and metal oxides such as A1 2 o 3 , MgO, BeO, ZnO, NiO, etc., metal nitrides such as AlN, Si 3 N 4 , BN, etc. and other non-metallic materials such as graphite, carbon black, etc. The rapid development of industrial production and science and technology has put forward newer and higher requirements for thermal conductive materials. In addition to thermal conductivity, it is hoped that the material has excellent comprehensive properties such as light weight, easy processing and molding, good mechanical properties, and chemical corrosion resistance. For ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L23/06C08L23/14C08L9/02C08L77/00C08L31/04C08L83/06C08K13/04C08K5/11C08K3/34C08K5/09C08K7/08B29C47/92H01B3/44B29C48/92
CPCC08L23/06B29C48/92B29C2948/92209C08L2205/02C08L2205/035C08L2207/062H01B3/441C08L23/14C08L9/02C08L77/00C08L31/04C08L83/06C08K13/04C08K5/11C08K3/34C08K5/09C08K7/08C08K7/14
Inventor 陈平顾建强钱燕华
Owner ENG EQUIP CO LTD SUZHOU SAI SIDE
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