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Electronic packaging heat-conducting double-sided adhesive tape and preparation method thereof

A double-sided adhesive tape and electronic packaging technology, which is applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of affecting heat dissipation effect and low viscosity of heat-conducting silicone sheets, so as to make up for the lack of viscosity and cost. The effect of low cost and good overall performance

Inactive Publication Date: 2021-08-03
东莞市清鸿新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Automotive power batteries are generally composed of square power batteries (cells) one by one. The power batteries are dissipated through heat-conducting silicone sheets, which are easy to disassemble. The gap affects the heat dissipation effect, so a kind of electronic packaging heat-conducting double-sided adhesive tape and its preparation method are proposed

Method used

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  • Electronic packaging heat-conducting double-sided adhesive tape and preparation method thereof
  • Electronic packaging heat-conducting double-sided adhesive tape and preparation method thereof
  • Electronic packaging heat-conducting double-sided adhesive tape and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] 1) Add 40 parts of boron nitride powder to 20 parts of ethyl acetate solvent, and soak for 2 hours to fully wet the boron nitride powder;

[0037] 2) After diluting 0.5 part of dispersant with ethyl acetate, add it to 100 parts of acrylic pressure-sensitive adhesive, stir for 5 minutes, and mix well to obtain acrylic pressure-sensitive adhesive glue with dispersant;

[0038] 3) Add the fully wetted boron nitride powder into the acrylic pressure-sensitive adhesive with dispersant, increase the speed of the mixer, and mix the materials evenly;

[0039] 4) Dissolve 0.5 part of isocyanate curing agent in ethyl acetate, add to the material in step 3), continue to stir and mix evenly, and filter the evenly mixed material through a 200-mesh filter to obtain heat-conducting pressure-sensitive adhesive glue;

[0040] 5) After the heat-conducting pressure-sensitive adhesive is left to remove air bubbles or removed in a vacuum, it is coated on the release film layer with a coating...

Embodiment 2

[0046] 1) Add 80 parts of boron nitride powder into 40 parts of ethyl acetate solvent and soak for 2 hours to fully wet the boron nitride powder;

[0047] 2) After diluting 1 part of dispersant with ethyl acetate, add it to 100 parts of acrylic pressure-sensitive adhesive, stir for 10 minutes, and mix well to obtain acrylic pressure-sensitive adhesive glue with dispersant;

[0048] 3) Add the fully wetted boron nitride powder into the acrylic pressure-sensitive adhesive with dispersant, increase the speed of the mixer, and mix the materials evenly;

[0049] 4) Dissolve 3 parts of isocyanate curing agent in ethyl acetate, add to the material in step 3), continue to stir and mix evenly, and filter the evenly mixed material through a 200-mesh filter to obtain heat-conducting pressure-sensitive adhesive glue;

[0050] 5) After the heat-conducting pressure-sensitive adhesive is left standing to remove air bubbles or vacuumed to remove air bubbles, it is coated on the release film l...

Embodiment 3

[0056] 1) Add 90 parts of boron nitride powder into 60 parts of ethyl acetate solvent, and soak for 1.5 hours to fully wet the boron nitride powder;

[0057] 2) After diluting 2 parts of dispersant with ethyl acetate, add it to 100 parts of acrylic pressure-sensitive adhesive, stir for 5 minutes, and mix well to obtain acrylic pressure-sensitive adhesive glue with dispersant;

[0058] 3) Add the fully wetted boron nitride powder into the acrylic pressure-sensitive adhesive with dispersant, increase the speed of the mixer, and mix the materials evenly;

[0059] 4) Dissolve 4 parts of isocyanate curing agent in ethyl acetate, add to the material in step 3), continue to stir and mix evenly, and filter the evenly mixed material through a 200-mesh filter to obtain heat-conducting pressure-sensitive adhesive glue;

[0060] 5) After the heat-conducting pressure-sensitive adhesive is left standing to remove air bubbles or vacuumed to remove air bubbles, it is coated on the release film ...

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Abstract

The invention discloses the technical field of adhesive tapes, and particularly relates to an electronic packaging heat-conducting double-sided adhesive tape which comprises a base material layer, the two sides of the base material layer are coated with heat-conducting pressure-sensitive adhesive layers, the side walls of the heat-conducting pressure-sensitive adhesive layers are coated with release film layers, and a heat-conducting silica gel sheet and a power battery are attached in a double-sided adhesive tape mode. The double-sided adhesive tape and the heat-conducting silica gel sheet jointly form a heat dissipation surface of the power battery, so that the defect of insufficient viscosity of the heat-conducting silica gel sheet is overcome while rapid heat conduction is ensured, and the double-sided adhesive tape is seamlessly attached to the power battery, so that the effective heat dissipation surface is fully ensured; and the double-sided adhesive tape has the characteristics of high heat conduction and insulation, has flexibility, compressibility, fitness, strong viscosity and large temperature adaptation range, can fill up uneven surfaces, can be tightly and firmly attached to heat source devices and cooling fins and quickly conduct heat out, and is simple in preparation method.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to an electronic packaging heat-conducting double-sided adhesive tape and a preparation method thereof. Background technique [0002] With the country's advocacy of environmental protection, new energy vehicles have gradually become the general direction of automobile development. New energy vehicles are mainly composed of battery drive systems, motor systems, electronic control systems and assembly. Among them, the motor, electronic control and assembly are basically the same as those of traditional cars. The battery drive system uses electricity as the main energy to drive the vehicle, which greatly reduces the pollutants emitted by traditional gasoline drives. The power battery is the power source that provides the power source for the tool, and mostly refers to the battery that provides power for electric vehicles, electric trains, electric bicycles, and golf carts. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J7/21C09J7/38C09J133/08C09J11/04
CPCC09J7/21C09J7/385C09J133/066C09J11/04C08K2003/385C09J2400/143C09J2433/00
Inventor 陆扬景海全
Owner 东莞市清鸿新材料科技有限公司
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