High-frequency special hot-melt aluminum foil mylar

Abstract

The utility model relates to the technical field of mylar, in particular to a high-frequency special hot melting aluminum foil mylar, which comprises two shielding layers, two aluminum foil layers and two foam connecting layers, the shielding layers and the foam connecting layers are thermally bonded into a whole, and the aluminum foil layers and the foam connecting layers are welded into a whole. A plurality of heat dissipation holes are formed in the foam connecting layer; according to the utility model, the foam connecting layer is arranged, one side of the foam connecting layer is thermally bonded with the shielding layer, and the other side of the foam connecting layer is welded with the aluminum foil layer, so that the thermoset performance is excellent, the bonding performance is not influenced even under the condition of higher temperature, and the connecting strength among the structures of all layers is ensured; meanwhile, a plurality of heat dissipation holes are formed in the foam connecting layer, heat accumulated in the foam connecting layer is discharged through the heat dissipation holes, and normal use of the inner aluminum foil layer is guaranteed.

Description

Technical field:

[0001] The utility model relates to the technical field of Mylar, in particular to a high-frequency special hot-melt aluminum foil Mylar. Background technology:

[0002] Mylar sheet (MYLAR sheet) PET polyester film is a film made by heating dimethyl terephthalate and ethylene glycol with the assistance of relevant catalysts, undergoing ester exchange and vacuum polycondensation, and biaxial stretching. It is widely used in the electrical insulation industry and is suitable for gaskets, baffles, screens and protection for electronics, household appliances, instruments, displays, motor slots, computers and peripheral equipment. During high-frequency transmission, it can isolate electromagnetic wave interference and prevent high-frequency electromagnetic waves from affecting the human body. The existing aluminum foil Mylar tape generally has a shielding layer and other layers bonded together by ordinary double-sided tape. When the Mylar tape is working, it is easy to accumulate heat inside, causing the adhesive to lose its viscosity, resulting in dispersion between the layers of structure, resulting in the Mylar tape being unable to be used normally. There is an urgent need for a Mylar tape that can work for a long time without being unable to be used normally due to heat accumulation. Utility model content:

[0003] The utility model aims to provide a high-frequency special hot-melt aluminum foil Mylar tape to address the deficiencies in the prior art, which has good heat dissipation effect, reduces heat accumulation inside the Mylar tape, and prevents the internal structure from being dispersed due to temperature increase.

[0004] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is: a high-frequency special hot-melt aluminum foil Mylar, including a shielding layer, an aluminum foil layer, and a foam connecting layer. The aluminum foil layer and the foam connecting layer are each provided with two layers, and the two layers of the foam connecting layer are respectively provided on the upper and lower surfaces of the aluminum foil layer, and the two layers of the shielding layer are respectively provided on the upper surface of the foam connecting layer located above and the lower surface of the foam connecting layer located below, the shielding layer and the foam connecting layer are thermally bonded together, the aluminum foil layer and the foam connecting layer are fused together, and a plurality of heat dissipation holes are provided on the foam connecting layer.

[0005] A further improvement to the above solution is that it also includes two insulating layers respectively arranged on the outside of the shielding layer, and the insulating layer and the shielding layer are bonded together by an adhesive.

[0006] A further improvement to the above scheme is that the adhesive is one of epoxy resin, phenolic resin, urea-formaldehyde resin and polyester resin.

[0007] A further improvement to the above solution is that it also includes a release film layer arranged on the outside of one of the insulating layers.

[0008] A further improvement to the above scheme is that the release film layer is one of a PET fluoroplastic release film layer, a PET silicone oil-containing release film layer, a PET matte release film layer, a PE release film layer, and a PE coated paper layer.

[0009] A further improvement to the above solution is that the shielding layer is made of PET polyester film.

[0010] A further improvement to the above solution is that the heat dissipation hole is one of a circular hole, a square hole, and a diamond hole.

[0011] The utility model has the beneficial effects that: the utility model provides a high-frequency special hot-melt aluminum foil Mylar, comprising a shielding layer, an aluminum foil layer, and a foam connection layer, wherein the aluminum foil layer and the foam connection layer are both provided with two layers, the two layers of the foam connection layer are respectively provided on the upper and lower surfaces of the aluminum foil layer, the two layers of the shielding layer are respectively provided on the upper surface of the foam connection layer located above and the lower surface of the foam connection layer located below, the shielding layer and the foam connection layer are thermally bonded together, the aluminum foil layer and the foam connection layer are fused together, and the foam connection layer is provided with a plurality of heat dissipation holes;

[0012] The utility model is provided with a foam connection layer, one side of the foam connection layer is thermally bonded to the shielding layer, and the other side is welded to the aluminum foil layer. The foam connection layer has excellent thermosetting performance and will not affect its bonding performance even under high temperature conditions, thereby ensuring the connection strength between the various layer structures. At the same time, a plurality of heat dissipation holes are provided on the foam connection layer, through which the heat accumulated inside is discharged, thereby ensuring the normal use of the internal aluminum foil layer. Description of the drawings:

[0013] Figure 1 It is a schematic diagram of the cross-sectional structure of the utility model.

[0014] Figure 2 It is an explosion diagram of the utility model.

[0015] Explanation of the reference numerals: shielding layer 1 , aluminum foil layer 2 , foam connecting layer 3 , heat dissipation holes 31 , insulating layer 4 , release film layer 5 . Specific implementation method:

[0016] The utility model will be further described below in conjunction with the accompanying drawings. Figure 1-2As shown, the utility model provides a high-frequency special hot-melt aluminum foil Mylar, including a shielding layer 1, an aluminum foil layer 2, and a foam connecting layer 3. The aluminum foil layer 2 and the foam connecting layer 3 are both provided with two layers, and the two layers of foam connecting layers 3 are respectively provided on the upper and lower surfaces of the aluminum foil layer 2, and the two layers of shielding layers 1 are respectively provided on the upper surface of the foam connecting layer 3 located at the top and the lower surface of the foam connecting layer 3 located at the bottom, the shielding layer 1 and the foam connecting layer 3 are thermally bonded together, and the aluminum foil layer 2 and the foam connecting layer 3 are fused together, and a plurality of heat dissipation holes 31 are provided on the foam connecting layer 3; the utility model is provided with a foam connecting layer 3, one side of the foam connecting layer 3 is thermally bonded to the shielding layer 1, and the other side is fused to the aluminum foil layer 2, and its thermosetting performance is excellent, and its bonding performance will not be affected even at a high temperature, thereby ensuring the connection strength between the layers; at the same time, a plurality of heat dissipation holes 31 are provided on the foam connecting layer 3, and the heat accumulated inside is discharged through the heat dissipation holes 31, thereby ensuring the normal use of the internal aluminum foil layer 2.

[0017] The utility model also includes two insulating layers 4 respectively arranged on the outside of the shielding layer 1. The insulating layer 4 and the shielding layer 1 are bonded together by an adhesive. The adhesive of the utility model is preferably one of epoxy resin, phenolic resin, urea-formaldehyde resin, and polyester resin. The resin adhesive has good thermosetting properties and can ensure viscosity at high temperatures to prevent the components of each layer from loosening and falling off.

[0018] The utility model further comprises a release film layer 5 arranged on the outside of one of the insulating layers 4; the release film layer of the utility model is one of PET fluoroplastic release film layer, PET silicone oil-containing release film layer, PET matte release film layer, PE release film layer, and PE coated paper layer.

[0019] The shielding layer 1 of the utility model is composed of a PET polyester film, has strong shielding performance, excellent chemical resistance and oil resistance, and can be used in harsh environments.

[0020] The heat dissipation hole 31 of the utility model is a circular hole, a square hole, or a diamond hole, and the heat dissipation hole 31 can be processed into different shapes according to specific needs.

[0021] Working principle:

[0022] The shielding layer 1 and the foam connecting layer 3 of the utility model are thermally bonded together, the aluminum foil layer 2 and the foam connecting layer 3 are fused together, and a plurality of heat dissipation holes 31 are provided on the foam connecting layer 3; the utility model is provided with a foam connecting layer 3, one side of the foam connecting layer 3 is thermally bonded to the shielding layer 1, and the other side is fused to the aluminum foil layer 2, and its thermosetting property is excellent, and its bonding property is not affected even under high temperature conditions, thereby ensuring the connection strength between the layers; at the same time, a plurality of heat dissipation holes 31 are provided on the foam connecting layer 3, and the heat accumulated inside is discharged through the heat dissipation holes 31, thereby ensuring the normal use of the internal aluminum foil layer 2.

[0023] Of course, the above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present invention patent application are included in the scope of the present invention patent application.

Claims

1. A high frequency special hot-melt aluminum foil Mylar, characterized by: The invention comprises a shielding layer (1), an aluminum foil layer (2), and a foam connecting layer (3), wherein the aluminum foil layer (2) and the foam connecting layer (3) are both provided with two layers, the two layers of the foam connecting layer (3) are respectively provided on the upper and lower surfaces of the aluminum foil layer (2), the two layers of the shielding layer (1) are respectively provided on the upper surface of the foam connecting layer (3) located at the top and the lower surface of the foam connecting layer (3) located at the bottom, the shielding layer (1) and the foam connecting layer (3) are thermally bonded together, the aluminum foil layer (2) and the foam connecting layer (3) are fused together, and the foam connecting layer (3) is provided with a plurality of heat dissipation holes (31).

2. The high frequency special hot-melt aluminum foil Mylar according to claim 1, characterized in that: It also comprises two insulating layers (4) respectively arranged on the outside of the shielding layer (1), and the insulating layer (4) and the shielding layer (1) are bonded together by an adhesive.

3. The high frequency special hot-melt aluminum foil Mylar according to claim 2, characterized in that: The adhesive is one of epoxy resin, phenolic resin, urea-formaldehyde resin and polyester resin.

4. A high frequency special hot-melt aluminum foil Mylar according to any one of claims 2-3, characterized in that: It also includes a release film layer (5) arranged on the outside of one of the insulating layers (4).

5. The high frequency special hot-melt aluminum foil Mylar according to claim 4, characterized in that: The release film layer (5) is one of a PET fluoroplastic release film layer, a PET silicone oil-containing release film layer, a PET matte release film layer, a PE release film layer, and a PE coated paper layer.

6. The high frequency special hot-melt aluminum foil Mylar according to claim 1, characterized in that: The shielding layer (1) is made of PET polyester film.

7. The high frequency special hot-melt aluminum foil Mylar according to claim 1, characterized in that: The heat dissipation hole (31) is one of a circular hole, a square hole and a diamond hole.

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