Multi-layer double-faced adhesive tape

Abstract

The utility model discloses a multilayer double-faced adhesive tape which comprises a base material, a first heat conduction layer, a second heat conduction layer, a conductive double-faced adhesive tape, an insulating double-faced adhesive tape, a first release film and a second release film, the first heat conduction layer and the second heat conduction layer are arranged on the upper face and the lower face of the base material respectively, and the conductive double-faced adhesive tape and the first release film are sequentially arranged on the first heat conduction layer. The insulating double-faced adhesive tape and the second release film are sequentially arranged on the second heat conduction layer, a first waterproof coating is arranged on the inner side face of the first release film, and a second waterproof coating is arranged on the inner side face of the second release film. The conductive adhesive not only can be used as conductive adhesive or insulating adhesive, but also has multiple functions, and simultaneously has good waterproofness, antistatic property and thermal conductivity.

Description

Technical Field

[0001] The utility model relates to the technical field of double-sided adhesive tapes, in particular to a multi-layer double-sided adhesive tape. Background Art

[0002] Conductive double-sided adhesive is a commonly used electrical material. On some conductive double-sided adhesives, a piece of insulating adhesive can be attached to some areas, so that the conductive adhesive can achieve both conductive and insulating functions. However, this requires two types of adhesive, which is troublesome to prepare. In addition, since the existing conductive double-sided adhesive has a relatively single function, it cannot meet the diverse needs of double-sided adhesive materials, such as waterproofness, antistatic properties, thermal conductivity, etc. Utility Model Content

[0003] The utility model aims to overcome the deficiencies of the prior art and provide a multi-layer double-sided adhesive which can not only be used as a conductive adhesive or an insulating adhesive but also has multifunctionality and has good waterproofness, antistatic properties and thermal conductivity.

[0004] The technical solution of the utility model is as follows:

[0005] A multi-layer double-sided adhesive comprises a substrate, a first heat-conducting layer, a second heat-conducting layer, a conductive double-sided adhesive, an insulating double-sided adhesive, a first release film and a second release film, wherein the first heat-conducting layer and the second heat-conducting layer are respectively arranged on the upper and lower surfaces of the substrate, the conductive double-sided adhesive and the first release film are arranged on the first heat-conducting layer in sequence, the insulating double-sided adhesive and the second release film are arranged on the second heat-conducting layer in sequence, the inner side surface of the first release film is provided with a first waterproof coating, and the inner side surface of the second release film is provided with a second waterproof coating.

[0006] Furthermore, the first heat-conducting layer and the second heat-conducting layer are both graphene heat-conducting layers.

[0007] Furthermore, the lower part of the first heat-conducting layer and the upper part of the second heat-conducting layer are both configured as arch structures.

[0008] Furthermore, the first heat-conducting layer and the substrate, and the second heat-conducting layer and the substrate are bonded together by heat-conducting silicone.

[0009] Furthermore, the conductive double-sided adhesive is surrounded by a first waterproof adhesive, and the insulating double-sided adhesive is surrounded by a second waterproof adhesive.

[0010] Furthermore, both ends of the first release film and the second release film are provided with fluorescent tear grooves.

[0011] Furthermore, the fluorescent tearing groove is arranged to be laterally inclined.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] (1) The utility model can be used as a conductive adhesive or an insulating adhesive by providing a conductive double-sided adhesive and an insulating double-sided adhesive on the upper and lower sides. When used as a conductive adhesive, the insulating double-sided adhesive on the other side can be used as an antistatic layer, thereby preventing the generation and accumulation of static electricity on the surface;

[0014] (2) A heat-conducting layer is provided between the conductive double-sided adhesive and the substrate, and between the insulating double-sided adhesive and the substrate, thereby providing thermal conductivity for the substrate, reducing the influence of the heating of the substrate on the glue layer, and ensuring the bonding stability of the glue layer;

[0015] (3) A first waterproof coating is provided on the inner side of the first release film, and a second waterproof coating is provided on the inner side of the second release film, thereby providing waterproof properties for the upper and lower surfaces to avoid accidental wetting of the glue layer and affecting the use of the glue layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 A schematic diagram of the structure of a multi-layer double-sided adhesive provided by the utility model;

[0018] Figure 2 This is a schematic structural diagram of the first heat-conducting layer of the utility model;

[0019] Figure 3 This is a schematic structural diagram of the second heat-conducting layer of the utility model;

[0020] Figure 4 The present invention provides a surface schematic diagram of a multi-layer double-sided adhesive tape. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0022] In order to illustrate the technical solution of the present invention, specific embodiments are provided below for illustration.

[0023] Example

[0024] See also Figure 1The present embodiment provides a multi-layer double-sided adhesive, including a substrate 1, a first heat-conducting layer 2, a second heat-conducting layer 3, a conductive double-sided adhesive 4, an insulating double-sided adhesive 5, a first release film 6, and a second release film 7. The first heat-conducting layer 2 and the second heat-conducting layer 3 are respectively arranged on the upper and lower surfaces of the substrate 1. The first heat-conducting layer 2 and the substrate 1, and the second heat-conducting layer 3 and the substrate 1 are bonded by thermally conductive silicone. The conductive double-sided adhesive 4 and the first release film 6 are sequentially arranged on the first heat-conducting layer 2, and the insulating double-sided adhesive 5 and the second release film 7 are sequentially arranged on the second heat-conducting layer 3. The conductive double-sided adhesive 4 and the insulating double-sided adhesive 5 are arranged on the upper and lower surfaces, so that the multi-layer double-sided adhesive can be used as a conductive adhesive or an insulating adhesive. When used as a conductive adhesive, the first release film 6 can be torn off. At this time, the insulating double-sided adhesive 5 on the other side can be used as an antistatic layer , thereby preventing the generation and accumulation of surface static electricity. When used as an insulating glue, the second release film 7 can be torn off. The inner side of the first release film 6 is provided with a first waterproof coating 8, and the inner side of the second release film 7 is provided with a second waterproof coating 9. The first waterproof coating 8 and the second waterproof coating 9 provide waterproof performance for the upper and lower surfaces, thereby avoiding accidental wetting of the glue layer and affecting the use of the glue layer. The first waterproof coating 8 and the second waterproof coating 9 are attached to the first release film 6 and the second release film 7, and are torn off as the first release film 6 and the second release film 7 are torn off. The thermal conductive layer arranged between the conductive double-sided adhesive 4 and the substrate 1, and the insulating double-sided adhesive 5 and the substrate 1 can provide thermal conductivity for the substrate 1, thereby reducing the influence of the heating of the substrate 1 on the glue layer and ensuring the stability of the bonding of the glue layer.

[0025] Preferably, the first heat-conducting layer 2 and the second heat-conducting layer 3 are both graphene heat-conducting layers, which can enhance the thermal conductivity of the heat-conducting layer. Figure 2 , Figure 3 As shown, the lower part of the first heat-conducting layer 2 and the upper part of the second heat-conducting layer 3 are both set as arch structures to increase the contact area between the heat-conducting layer and the substrate 1, thereby further improving the thermal conductivity of the first heat-conducting layer 2 and the second heat-conducting layer 3.

[0026] Preferably, the conductive double-sided tape 4 is surrounded by a first waterproof adhesive 10, thereby forming a sealed waterproof structure with the upper first waterproof coating 8, and the insulating double-sided tape 5 is surrounded by a second waterproof adhesive 11, thereby forming a sealed waterproof structure with the lower second waterproof coating 9, further improving the waterproof performance.

[0027] Better, combined Figure 4 As shown, both ends of the first release film 6 and the second release film 7 are provided with transversely inclined fluorescent tear grooves 12. The inclined setting of the fluorescent tear grooves 12 can facilitate tearing the release film when in use, and the bright light emitted by the fluorescent light can facilitate use in a dark environment.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multi-layer double-sided adhesive tape, characterized in that: It includes a substrate, a first heat-conducting layer, a second heat-conducting layer, a conductive double-sided adhesive, an insulating double-sided adhesive, a first release film and a second release film, wherein the first heat-conducting layer and the second heat-conducting layer are respectively arranged on the upper and lower surfaces of the substrate, the conductive double-sided adhesive and the first release film are arranged on the first heat-conducting layer in sequence, the insulating double-sided adhesive and the second release film are arranged on the second heat-conducting layer in sequence, the inner side surface of the first release film is provided with a first waterproof coating, and the inner side surface of the second release film is provided with a second waterproof coating.

2. The multi-layer double-sided adhesive tape according to claim 1, characterized in that: The first heat-conducting layer and the second heat-conducting layer are both graphene heat-conducting layers.

3. The multi-layer double-sided adhesive tape according to claim 2, characterized in that: The lower part of the first heat-conducting layer and the upper part of the second heat-conducting layer are both configured as arch structures.

4. The multi-layer double-sided adhesive tape according to claim 3, characterized in that: The first heat-conducting layer and the substrate, and the second heat-conducting layer and the substrate are bonded together by heat-conducting silicone.

5. The multi-layer double-sided adhesive tape according to claim 1, characterized in that: The conductive double-sided adhesive is surrounded by a first waterproof adhesive, and the insulating double-sided adhesive is surrounded by a second waterproof adhesive.

6. The multi-layer double-sided adhesive tape according to claim 1, characterized in that: Both ends of the first release film and the second release film are provided with fluorescent tearing grooves.

7. The multi-layer double-sided adhesive tape according to claim 6, characterized in that: The fluorescent tearing groove is arranged to be transversely inclined.

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