Electromagnetic shielding mildew-proof silica gel self-adhesive tape

Abstract

The utility model discloses an electromagnetic shielding mould-proof silica gel self-adhesive tape which comprises a tape body wound on the outer wall of a winding roller, the tape body comprises a base material layer, the bottom of the base material layer is fixedly connected with an enhanced electromagnetic shielding layer, a self-adhesive silica gel layer is laid on one side of the enhanced electromagnetic shielding layer, and the middle of the enhanced electromagnetic shielding layer is fixedly connected with a rubber strip. Reinforcing fibers are fixedly connected into the base material layer, a first protection layer is fixedly connected to the top of the base material layer, and a mildew-proof layer is fixedly connected to the top of the first protection layer. According to the technical scheme provided by the utility model, the silicone rubber base material with dispersed high-conductivity metal powder is adopted, and the enhanced electromagnetic shielding layer of the micro-structure conductive network is combined, so that electromagnetic waves are effectively shielded, and meanwhile, the introduction of the mildew-proof layer effectively prevents the growth of mildew, and protects the safe and stable operation of electronic equipment in a severe environment. Due to the design of the grooves and the through holes in the top of the base material layer, air circulation during pasting is optimized, and the attaching degree of the base material layer and the pasted surface is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hot-melt polyester tapes, and particularly relates to a silicone self-adhesive tape with electromagnetic shielding and mildew prevention functions. Background Art

[0002] With the miniaturization of electronic devices, the continuous improvement of integration, and people's pursuit of a healthy quality of life, the problems of electromagnetic interference (EMI) and the mildew prevention requirements of electronic devices have become increasingly prominent. Traditional electromagnetic shielding materials often neglect the mildew prevention performance, while separate mildew prevention treatments may affect the electromagnetic compatibility of the materials. In addition, the existing solutions on the market often have deficiencies in the flexibility, self-adhesiveness, and stability during long-term use of the materials, restricting their applicability in complex environments and diverse application scenarios. Content of the Utility Model

[0003] The purpose of the utility model is to provide a silicone self-adhesive tape with electromagnetic shielding and mildew prevention functions for the deficiencies of the existing technology, so as to solve the problems raised in the background art.

[0004] To achieve the above purpose, the utility model provides the following technical solutions:

[0005] A silicone self-adhesive tape with electromagnetic shielding and mildew prevention functions, including a tape body wound around the outer wall of a roller. The tape body includes a base material layer. A reinforced electromagnetic shielding layer is fixedly connected to the bottom of the base material layer. A self-adhesive silicone layer is laid on one side of the reinforced electromagnetic shielding layer. A rubber strip is fixedly connected to the middle of the reinforced electromagnetic shielding layer. Reinforcing fibers are fixedly connected to the inside of the base material layer. A first protective layer is fixedly connected to the top of the base material layer. A mildew prevention layer is fixedly connected to the top of the first protective layer.

[0006] Optionally, the base material layer is composed of highly conductive metal powder uniformly dispersed in a silicone rubber matrix, and the thickness of the base material layer is 0.1 - 0.3 mm.

[0007] Optionally, the reinforcing fibers are made of carbon fiber, and the reinforcing fibers are cross-arranged inside the base material layer.

[0008] Optionally, the first protective layer is made of EVA material, and the thickness of the first protective layer is 0.01 - 0.09 mm.

[0009] Optionally, the mildew prevention layer is a mildew prevention coating.

[0010] Optionally, grooves are provided on the top of the base material layer, and through holes are provided inside the grooves.

[0011] Optionally, the enhanced electromagnetic shielding layer is constructed with a microstructured conductive network, which includes at least one conductive fiber or nanowire material embedded in the enhanced electromagnetic shielding layer in the form of a three-dimensional grid structure.

[0012] Compared with the prior art, the present utility model provides a silicone self-adhesive tape with electromagnetic shielding and mildew prevention, having the following beneficial effects:

[0013] 1. By using a silicone rubber substrate dispersed with highly conductive metal powder and combining it with an enhanced electromagnetic shielding layer of a microstructured conductive network, the present utility model effectively shields electromagnetic waves. Meanwhile, the introduction of the mildew prevention layer effectively prevents the growth of mildew, protecting the safe and stable operation of electronic devices in harsh environments. The groove and through-hole design on the top of the substrate layer not only optimizes the air circulation during pasting but also improves the adhesion to the adhered surface, further enhancing the mildew prevention effect and bonding strength.

[0014] 2. By providing a reinforcing fiber design with cross-arranged carbon fibers and a first protective layer of EVA material, the present utility model significantly enhances the mechanical strength and wear resistance of the self-adhesive tape, ensuring stability and reliability during long-term use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on the structures shown in these drawings.

[0016] Figure 1 It is a schematic structural diagram of the present utility model;

[0017] Figure 2 It is a cross-sectional view of the end face of the tape body of the present utility model;

[0018] Figure 3 It is a partial cross-sectional view of the side of the tape body of the present utility model;

[0019] Figure 4 It is a partial cross-sectional view of the top of the tape body of the present utility model.

[0020] In the figure: 1, winding roller; 2, tape body; 3, substrate layer; 301, groove; 302, through-hole; 4, enhanced electromagnetic shielding layer; 5, rubber strip; 6, reinforcing fiber; 7, first protective layer; 8, mildew prevention layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0023] In the description of the present utility model, it should also be noted that unless otherwise clearly specified and limited, the terms "set", "installed", "connected", "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or a connection through an intermediate medium. It can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific situations.

[0024] Please refer to Figures 1-4 , in this implementation: An electromagnetic shielding and mildew-proof silicone self-adhesive tape, including a tape body 2 wound around the outer wall of a roll 1. The tape body 2 includes a base layer 3. A reinforced electromagnetic shielding layer 4 is fixedly connected to the bottom of the base layer 3. A self-adhesive silicone layer is laid on one side of the reinforced electromagnetic shielding layer 4. A rubber strip 5 is fixedly connected to the middle of the reinforced electromagnetic shielding layer 4. A reinforcing fiber 6 is fixedly connected to the inside of the base layer 3. A first protective layer 7 is fixedly connected to the top of the base layer 3. A mildew-proof layer 8 is fixedly connected to the top of the first protective layer 7. The base layer 3 is composed of highly conductive metal powders such as copper powder, silver powder or nickel powder evenly dispersed in a silicone rubber matrix, and the thickness of the base layer 3 is 0.1 - 0.3 mm.

[0025] It should be noted that the roll 1 serves as the support structure of the self-adhesive tape, and the tape body 2 is wound around its outer wall. The tape body 2 is composed of multiple layers. Among them, the base layer 3 is the foundation, which is formed by evenly dispersing highly conductive metal powders in a silicone rubber matrix, and the thickness is controlled within 0.1 - 0.3 mm to ensure good electromagnetic shielding performance and elasticity. The rubber strip 5: located in the middle of the reinforced electromagnetic shielding layer 4, increasing the sealing and toughness of the tape body 2.

[0026] The reinforcing fiber 6 is made of carbon fiber, and the reinforcing fiber 6 is cross-arranged inside the substrate layer 3.

[0027] It should be noted that the cross-arranged reinforcing fibers 6 are implanted inside the substrate layer 3. These fibers are made of carbon fiber materials, enhancing the overall mechanical strength and stability.

[0028] The first protective layer 7 is made of EVA material, and the thickness of the first protective layer 7 is 0.01 - 0.09 mm.

[0029] It should be noted that the first protective layer 7 covers the top of the substrate layer 3, is made of EVA material, and has a thickness between 0.01 - 0.09 mm, providing additional physical protection and insulation properties.

[0030] The mildew-proof layer 8 uses a mildew-proof coating.

[0031] It should be noted that the mildew-proof layer 8 is located on top of the first protective layer 7 and is treated with a mildew-proof coating, effectively preventing the growth of mildew and extending the service life of the product. Among them, the mildew-proof coating is usually a composite material made of a specific mildew-proof agent and a suitable carrier. The mildew-proof agent components can be organic mildew-proof agents such as organic halides, organometallic compounds, phenolic derivatives, etc., or inorganic mildew-proof agents, such as metal ion compounds of zinc, copper, etc. These mildew-proof agents can inhibit or kill the growth of mildew and prevent mildew on the material surface.

[0032] A groove 301 is provided on the top of the substrate layer 3, and a through hole 302 is provided inside the groove 301.

[0033] It should be noted that a series of grooves (301) are provided on the top of the substrate layer 3, and through holes (302) are arranged inside the grooves, which can enhance the contact area with the adhered surface and can discharge internal air bubbles.

[0034] The enhanced electromagnetic shielding layer 4 adopts a microstructured conductive network structure. This conductive network contains at least one conductive fiber or nanowire material such as copper, silver, or carbon nanotubes, and is embedded in the enhanced electromagnetic shielding layer 4 in the form of a three-dimensional grid structure. The diameter range of the conductive fiber or nanowire is 10 nm to 50 μm, and the grid density is 100 to 1000 intersections per square centimeter. Thus, without significantly increasing the material thickness, the electromagnetic shielding efficiency is greatly improved, especially the shielding effect in the high-frequency band, while maintaining the flexibility and self-adaptability of the material, enabling the self-adhesive tape to better fit electronic devices of different shapes and curved surfaces, effectively expanding the applicable range and improving the use flexibility.

[0035] Working principle: First, mix highly conductive metal powder with a silicone rubber matrix, and form a substrate layer 3 through an extrusion molding process. During the molding process, a cross-arranged carbon fiber reinforcement structure is implanted. By means of coating, a microstructured conductive network material is coated or embedded at the bottom of the substrate layer 3 to form an enhanced electromagnetic shielding layer 4. A rubber strip 5 is precisely fixed in the middle of the enhanced electromagnetic shielding layer 4, and then a self-adhesive silicone layer is laid. Through a hot pressing or coating method, a first protective layer 7 made of EVA material and a mildew-proof coating are sequentially added on the top of the substrate layer 3 to ensure tight bonding between the layers. Precision machining is performed on the substrate layer 3 to form a groove and through-hole structure.

[0036] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made under the concept of the present invention by using the content of the specification and drawings of the present invention, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims

1. An electromagnetic shielding and mildew-proof silicone self-adhesive tape, characterized in that: The invention comprises a belt body (2) wound on the outer wall of a roller (1), the belt body (2) comprising a base material layer (3), a reinforced electromagnetic shielding layer (4) fixedly connected to the bottom of the base material layer (3), a self-adhesive silicone layer laid on one side of the reinforced electromagnetic shielding layer (4), a rubber strip (5) fixedly connected to the middle of the reinforced electromagnetic shielding layer (4), a reinforcing fiber (6) fixedly connected to the inside of the base material layer (3), a first protective layer (7) fixedly connected to the top of the base material layer (3), and an anti-mildew layer (8) fixedly connected to the top of the first protective layer (7).

2. The electromagnetic shielding and mildew-proof silicone self-adhesive tape according to claim 1, characterized in that: The thickness of the substrate layer (3) is 0.1-0.3 mm.

3. The electromagnetic shielding and mildew-proof silicone self-adhesive tape according to claim 1, characterized in that: The reinforcing fibers (6) are made of carbon fibers, and the reinforcing fibers (6) are cross-arranged inside the base material layer (3).

4. The electromagnetic shielding and mildew-proof silicone self-adhesive tape according to claim 1, characterized in that: The first protective layer (7) is made of EVA material, and the thickness of the first protective layer (7) is 0.01-0.09 mm.

5. The electromagnetic shielding and mildew-proof silicone self-adhesive tape according to claim 1, characterized in that: The anti-mildew layer (8) is an anti-mildew coating.

6. The electromagnetic shielding and mildew-proof silicone self-adhesive tape according to claim 1, characterized in that: A groove (301) is provided on the top of the substrate layer (3), and a through hole (302) is provided inside the groove (301).

7. The electromagnetic shielding and mildew-proof silicone self-adhesive tape according to claim 1, characterized in that: The enhanced electromagnetic shielding layer (4) is constructed using a microstructured conductive network, wherein the conductive network comprises at least one conductive fiber or nanowire material, which is embedded in the enhanced electromagnetic shielding layer (4) in the form of a three-dimensional grid structure.

Images