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Heat-conducting adhesive tape and manufacturing method thereof

A production method and tape technology, applied in the direction of adhesives, film/sheet adhesives, etc., can solve the problem of easy bending of thermally conductive tapes

Inactive Publication Date: 2018-09-14
ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is to provide a thermally conductive adhesive tape and its manufacturing method, to solve the problem that the thermally conductive adhesive tape made of thicker copper foil is easy to bend in the prior art

Method used

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  • Heat-conducting adhesive tape and manufacturing method thereof
  • Heat-conducting adhesive tape and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] This embodiment provides a thermally conductive tape whose structure is as figure 1 As shown, it includes the first metal coating layer, the graphite layer, the pressure-sensitive adhesive layer and the release film from bottom to top. Concrete preparation process is as follows:

[0047] A graphite sheet is provided, and the upper surface of the graphite sheet is provided with a first protective film, and the lower surface opposite to the upper surface is provided with a second protective film; both the first protective film and the second protective film are made of PET with a thickness of 50 μm; The thickness of the graphite sheet is 17μm, and the thermal conductivity is 1500w / (m.k).

[0048] Tear off the first protective film, vapor-deposit metal copper on the exposed side of the graphite sheet, the vapor-deposition speed is 300m / min, and the thickness of the coating is

[0049] Coat the pressure-sensitive adhesive on the light release film with a coating thickne...

Embodiment 2

[0053] This embodiment provides a thermally conductive tape whose structure is as figure 1 As shown, it includes the first metal coating layer, the graphite layer, the pressure-sensitive adhesive layer and the release film from bottom to top. Concrete preparation process is as follows:

[0054] A graphite sheet is provided, and the upper surface of the graphite sheet is provided with a first protective film, and the lower surface opposite to the upper surface is provided with a second protective film; both the first protective film and the second protective film are made of PET with a thickness of 50 μm; The thickness of the graphite sheet is 25μm, and the thermal conductivity is 1500w / (m.k).

[0055] Tear off the first protective film, vapor-deposit metal copper on the exposed side of the graphite sheet, the vapor-deposition speed is 300m / min, and the thickness of the coating is

[0056] Coat the pressure-sensitive adhesive on the light release film with a coating thickne...

Embodiment 3

[0060] This embodiment provides a thermally conductive tape whose structure is as figure 1 As shown, it includes the first metal coating layer, the graphite layer, the pressure-sensitive adhesive layer and the release film from bottom to top. Concrete preparation process is as follows:

[0061] A graphite sheet is provided, and the upper surface of the graphite sheet is provided with a first protective film, and the lower surface opposite to the upper surface is provided with a second protective film; both the first protective film and the second protective film are made of PET with a thickness of 50 μm; The thickness of the graphite sheet is 17μm, and the thermal conductivity is 1500w / (m.k).

[0062] Tear off the first protective film, vapor-deposit metal copper on the exposed side of the graphite sheet, the vapor-deposition speed is 300m / min, and the thickness of the coating is

[0063] Coat the pressure-sensitive adhesive on the light release film with a coating thickne...

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Abstract

The invention provides a heat-conducting adhesive tape and a manufacturing method thereof. The heat-conducting adhesive tape comprises a heat-conducting layer and a pressure-sensitive adhesive layer positioned on the surface of one side of the heat-conducting layer, wherein the heat-conducting layer comprises a graphite layer and a first metal plating layer; the graphite layer is arranged near thepressure-sensitive adhesive layer; and the first metal plating layer is arranged on the surface of the side, far away from the pressure-sensitive adhesive layer, of the graphite layer. By the pressure-sensitive adhesive layer, the heat-conducting layer can be adhered to an OLED screen. The heat-conducting layer comprises the graphite layer and the first metal plating layer, and the first metal plating layer is arranged on the surface of the side, far away from the pressure-sensitive adhesive layer, of the graphite layer. Therefore, the graphite layer can effectively improve the bending resistance of the heat-conducting layer and the heat-conductive adhesive tape. Meanwhile, the metal layer is a first metal plating layer, the plating layer is arranged on the surface of the graphite layer by film plating modes such as metal evaporation and sputtering, and the graphite layer and the metal layer can be combined well by adopting an additional adhesive layer when the graphite layer and themetal layer are not stuck by the traditional adhesive tapes correspondingly, so that the heat-conducting property of the heat-conducting adhesive tape can be further improved.

Description

technical field [0001] The invention relates to the technical field of adhesive tapes, in particular to a thermally conductive tape and a manufacturing method thereof. Background technique [0002] OLED (Organic Light Emitting Diode) technology has been widely used in the display field of mobile phones, and the penetration of OLED technology in mobile phones is increasing year by year. [0003] At present, in the production of OLED screens, glass or polyimide is usually used as the base layer, but due to the poor thermal conductivity of glass or PI, it is often necessary to increase heat dissipation measures. Existing heat dissipation measures for OLED screens mainly adopt the method of pasting a heat-conducting tape behind the screen. The traditional heat-conducting tape often adopts the method of coating pressure-sensitive adhesive (PSA) on copper foil, that is, a pressure-sensitive adhesive layer is coated on a copper foil with a thickness of about 9 μm to form a heat-co...

Claims

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Application Information

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IPC IPC(8): C09J7/20
CPCC09J2301/122C09J2400/10C09J2400/163
Inventor 李长顺
Owner ZHANGJIAGANG KANGDE XIN OPTRONICS MATERIAL
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