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Transparent highly heat conductive adhesive tape and preparation method thereof

A technology of high thermal conductivity and thermally conductive adhesives, applied in adhesives, film/sheet adhesives, non-polymer adhesive additives, etc., can solve the problem of unsightly appearance of electrical appliances, and achieve the effect of simple structure

Inactive Publication Date: 2015-05-27
SUZHOU ENBRIGHTECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a transparent high thermal conductivity adhesive tape and its preparation method, aiming to solve the problem that the adhesive tape products connected by heat conduction in the product are not transparent, which causes the appearance of electrical appliances to be unattractive

Method used

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  • Transparent highly heat conductive adhesive tape and preparation method thereof
  • Transparent highly heat conductive adhesive tape and preparation method thereof

Examples

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preparation example Construction

[0029] Such as figure 2 As shown, the preparation method of the transparent high thermal conductivity adhesive tape of the embodiment of the present invention comprises the following steps:

[0030] S201: First add the high thermal conductivity filler and diluent into the stirring tank, disperse at high speed for 8-60 minutes, then add the pressure-sensitive adhesive into the stirring tank, and continue stirring for 8-40 minutes;

[0031] S202: Use the heavy-release protective film as the coating substrate, coat transparent high thermal conductivity glue on it, and stick the light-release protective film after passing through the gradient oven at 70°C-180°C;

[0032] S203: After aging for 0-7 days, a transparent high thermal conductivity tape is obtained.

[0033] The pressure-sensitive adhesive of the present invention can be a one-component adhesive or a two-component adhesive.

[0034] The diluent of the present invention can be one or more of ethyl acetate, butyl acetat...

Embodiment 1

[0037] The following scale factors are all mass percentages:

[0038] Main agent: Acrylic pressure sensitive adhesive 47%;

[0039] Thermally conductive filler: nano silver wire 3%;

[0040] Thermally conductive filler: nano-alumina 20%;

[0041] Diluent: ethyl acetate 30%;

[0042] According to the above formula, disperse the filler in the solvent, stir for 20 minutes, add the main agent glue, and stir for another 10 minutes. The dispersion liquid was coated on the heavy-release protective film to ensure that the dry film thickness was 15 μm after exiting the drying tunnel, and the light-release protective film was attached, and then aged at 50°C for 2 days to obtain the thermally conductive tape of Example 1.

Embodiment 2

[0044] The following scale factors are all mass percentages:

[0045] Main agent: silane pressure sensitive adhesive 50%;

[0046] Thermally conductive filler: CNT 5%;

[0047] Thermally conductive filler: nano diamond powder 15%;

[0048] Diluent: ethyl acetate 35%;

[0049] According to the above formula, disperse the filler in the solvent, stir for 30 minutes, add the main agent glue, and stir for another 10 minutes. The dispersion liquid was coated on the heavy-release protective film to ensure a dry film thickness of 10 μm after exiting the drying tunnel, and then the light-release protective film was attached to obtain the thermally conductive adhesive tape of Example 2.

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Abstract

The invention discloses a transparent highly heat conductive adhesive tape and a preparation method thereof. The transparent highly heat conductive adhesive tape comprises a transparent heat conductive adhesive layer, a light release protective layer and a heavy release protective layer. The preparation method of the transparent highly heat conductive adhesive tape comprises the following steps: firstly adding highly heat conductive filler and a diluent into a stirring kettle, dispersing for 8-60 minutes at a high speed, then adding a pressure adhesive into the stirring kettle and further stirring for 8-40 minutes; by taking a heavy release protective film as a coating matrix, coating the matrix with highly heat conductive glue, passing through a gradient drying tunnel at 70-180 DEG C and adhering the light release protective film; and curing within 0-7 days to obtain the transparent highly heat conductive adhesive tape. The transparent highly heat conductive adhesive tape provided by the invention is simple in structure, and better solves the problem that the appearance of an electric appliance is not attractive as an adhesive tape product for heat-conducting joint in a product is non-transparent.

Description

technical field [0001] The invention belongs to the technical field of adhesive tapes, in particular to a transparent high thermal conductivity adhesive tape and a preparation method thereof. Background technique [0002] With the wide application of touch technology, many electrical products we come into contact with in life begin to use touch interfaces partially or entirely, and most of these touch interfaces are transparent. However, the adhesive tape used as a heat-conducting connection in the product is not transparent, and the use of such an adhesive tape will cause the appearance of the electrical appliance to be unattractive no matter whether it is pasted on the front or the back of the electrical appliance. Contents of the invention [0003] The purpose of the present invention is to provide a transparent high thermal conductivity adhesive tape and its preparation method, aiming to solve the problem that the adhesive tape products connected by heat conduction in ...

Claims

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Application Information

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IPC IPC(8): C09J7/02C09J7/04C09J133/00C09J175/04C09J183/04C09J11/04
Inventor 唐春峰张伟城
Owner SUZHOU ENBRIGHTECH
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