Double-layer electromagnetic shielding high-temperature-resistant conductive silica gel

Abstract

The utility model provides double-layer electromagnetic shielding high-temperature-resistant conductive silica gel, which comprises a first conductive silica gel layer, a first shielding layer compounded above the first conductive silica gel layer, a second conductive silica gel layer compounded above the first shielding layer, a flame-retardant layer compounded above the second conductive silica gel layer, and a second shielding layer compounded above the flame-retardant layer. A third conductive silica gel layer is compounded on the flame-retardant layer, a second shielding layer is compounded on the third conductive silica gel layer, and a fourth conductive silica gel layer is compounded on the second shielding layer; the electromagnetic shielding effect is effectively improved by arranging the first shielding layer and the second shielding layer, and the silica gel can be effectively prevented from being damaged by combustion caused by high temperature by arranging the flame-retardant layer in the middle of the silica gel, so that the conductivity of the silica gel is ensured.

Description

Technical Field

[0001] The utility model relates to the field of conductive silica gel, in particular to a double-layer electromagnetic shielding high-temperature resistant conductive silica gel. Background Art

[0002] Conductive silicone is made by evenly distributing conductive particles such as silver-plated glass, silver-plated aluminum, and silver in silicone rubber, and using pressure to make the conductive particles contact to achieve good conductive properties. It is used in both military and commercial applications. Existing conductive silicone cannot achieve good electromagnetic shielding effects only through conductive particles, and has poor flame retardant effects.

[0003] Therefore, there is an urgent need for a double-layer electromagnetic shielding high-temperature resistant conductive silicone that can solve the above problems. Utility Model Content

[0004] The utility model aims to provide a double-layer electromagnetic shielding high-temperature resistant conductive silica gel to solve the problems existing in the above-mentioned prior art.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a double-layer electromagnetic shielding high-temperature resistant conductive silicone, comprising a first conductive silicone layer, a first shielding layer is compounded on the top of the first conductive silicone layer, a second conductive silicone layer is compounded on the top of the first shielding layer, a flame retardant layer is compounded on the top of the second conductive silicone layer, a third conductive silicone layer is compounded on the top of the flame retardant layer, a second shielding layer is compounded on the top of the third conductive silicone layer, and a fourth conductive silicone layer is compounded on the top of the second shielding layer.

[0007] Preferably, the first conductive silicone layer, the second conductive silicone layer, the third conductive silicone layer, and the fourth conductive silicone layer are all made of copper powder particle conductive silicone layers.

[0008] Preferably, shielding layer installation grooves are provided on the upper surface of the first conductive silicone layer, the lower surface of the second conductive silicone layer, the upper surface of the third conductive silicone layer, and the lower surface of the fourth conductive silicone layer.

[0009] Preferably, both the first shielding layer and the second shielding layer are graphene shielding layers.

[0010] Preferably, the flame retardant layer is made of copper foil.

[0011] Preferably, a pressure-sensitive adhesive layer is provided on the lower surface of the first conductive silicone layer and the upper surface of the fourth conductive silicone layer, and a release layer is attached to the outer side of the pressure-sensitive adhesive layer.

[0012] Compared with the prior art, the utility model has achieved the following beneficial technical effects:

[0013] The utility model provides a double-layer electromagnetic shielding high-temperature resistant conductive silicone, comprising a first conductive silicone layer, a first shielding layer compounded on the top of the first conductive silicone layer, a second conductive silicone layer compounded on the top of the first shielding layer, a flame retardant layer compounded on the top of the second conductive silicone layer, a third conductive silicone layer compounded on the top of the flame retardant layer, a second shielding layer compounded on the top of the third conductive silicone layer, and a fourth conductive silicone layer compounded on the top of the second shielding layer; the electromagnetic shielding effect is effectively improved by arranging the first shielding layer and the second shielding layer, and arranging the flame retardant layer in the middle of the silicone can effectively avoid damage to the silicone caused by combustion caused by high temperature, thereby ensuring the conductive performance of the silicone. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 A schematic diagram of the structure of a double-layer electromagnetic shielding high-temperature resistant conductive silicone provided by the utility model. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] The utility model aims to provide a double-layer electromagnetic shielding high-temperature resistant conductive silica gel to solve the problems existing in the prior art.

[0018] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] Embodiment 1:

[0020] This embodiment provides a double-layer electromagnetic shielding high temperature resistant conductive silicone rubber, such as Figure 1As shown, it includes a first conductive silicone layer 1, a first shielding layer 2 is compounded on the top of the first conductive silicone layer 1, a second conductive silicone layer 3 is compounded on the top of the first shielding layer 2, a flame retardant layer 4 is compounded on the top of the second conductive silicone layer 3, a third conductive silicone layer 5 is compounded on the top of the flame retardant layer 4, a second shielding layer 6 is compounded on the top of the third conductive silicone layer 5, and a fourth conductive silicone layer 7 is compounded on the top of the second shielding layer 6.

[0021] As an implementation mode, the first conductive silicone layer 1, the second conductive silicone layer 3, the third conductive silicone layer 5, and the fourth conductive silicone layer 7 are all made of copper powder particle conductive silicone layers, which have good electrical and thermal conductivity and low cost.

[0022] As an embodiment, the upper surface of the first conductive silicone layer 1, the lower surface of the second conductive silicone layer 3, the upper surface of the third conductive silicone layer 5, and the lower surface of the fourth conductive silicone layer 7 are all provided with a shielding layer mounting groove 8, so that the first shielding layer 2 and the second shielding layer 6 can be composited without increasing the thickness.

[0023] As an implementation mode, the first shielding layer 2 and the second shielding layer 6 are both graphene shielding layers, which have good thermal conductivity, electrical conductivity and electromagnetic shielding properties.

[0024] As an implementation mode, the flame retardant layer 4 is made of copper foil.

[0025] As an implementation mode, a pressure-sensitive adhesive layer 9 is provided on the lower surface of the first conductive silicone layer 1 and the upper surface of the fourth conductive silicone layer 7, and a release layer 10 is attached to the outer side of the pressure-sensitive adhesive layer 9, so as to facilitate installation and fixation.

[0026] The utility model provides a double-layer electromagnetic shielding high-temperature resistant conductive silicone, which effectively improves the electromagnetic shielding effect by arranging a first shielding layer and a second shielding layer. Arranging a flame retardant layer in the middle of the silicone can effectively avoid damage to the silicone caused by combustion caused by high temperature, thereby ensuring the conductive performance of the silicone.

[0027] The utility model uses specific examples to illustrate the principle and implementation of the utility model. The above examples are only used to help understand the method and core idea of ​​the utility model. At the same time, for those skilled in the art, according to the idea of ​​the utility model, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the utility model.

Claims

1. A double-layer electromagnetic shielding high temperature resistant conductive silicone, characterized by: It includes a first conductive silicone layer, a first shielding layer is compounded on the top of the first conductive silicone layer, a second conductive silicone layer is compounded on the top of the first shielding layer, a flame retardant layer is compounded on the top of the second conductive silicone layer, a third conductive silicone layer is compounded on the top of the flame retardant layer, a second shielding layer is compounded on the top of the third conductive silicone layer, and a fourth conductive silicone layer is compounded on the top of the second shielding layer.

2. The double-layer electromagnetic shielding high temperature resistant conductive silicone according to claim 1, characterized in that: The first conductive silicone layer, the second conductive silicone layer, the third conductive silicone layer, and the fourth conductive silicone layer are all made of copper powder particle conductive silicone layers.

3. The double-layer electromagnetic shielding high temperature resistant conductive silicone according to claim 1, characterized in that: The upper surface of the first conductive silicone layer, the lower surface of the second conductive silicone layer, the upper surface of the third conductive silicone layer, and the lower surface of the fourth conductive silicone layer are all provided with shielding layer installation grooves.

4. The double-layer electromagnetic shielding high temperature resistant conductive silicone according to claim 1, characterized in that: The first shielding layer and the second shielding layer are both graphene shielding layers.

5. The double-layer electromagnetic shielding high temperature resistant conductive silicone according to claim 1, characterized in that: The flame retardant layer is made of copper foil.

6. The double-layer electromagnetic shielding high temperature resistant conductive silicone according to claim 1, characterized in that: A pressure-sensitive adhesive layer is provided on the lower surface of the first conductive silicone layer and the upper surface of the fourth conductive silicone layer, and a release layer is attached to the outer side of the pressure-sensitive adhesive layer.

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