Conductive wire mesh based on non-metal base material

Abstract

The utility model discloses a conductive wire mesh based on a non-metal base material, which belongs to the technical field of conductive materials and comprises a wire mesh structure formed by weaving non-metal wires, the non-metal wires are made of carbon fibers, and a conductive layer is arranged on the surface of the wire mesh structure. According to the conductive wire mesh based on the non-metal base material provided by the utility model, the carbon fiber wire mesh structure is compounded with the conductive layer, so that the conductive wire mesh has the advantages that the surface is smoother and not easy to deform while excellent conductivity and electromagnetic shielding performance are obtained.

Description

Technical Field

[0001] This utility model relates to a conductive wire mesh based on a non-metallic substrate, belonging to the field of conductive materials technology. Background Technology

[0002] Conductive wire mesh possesses electrical conductivity and electromagnetic shielding capabilities, as well as the ability to prevent electromagnetic radiation, making it widely used in military, electronics, medical, and communications fields. Currently, common conductive wire meshes are formed by weaving metal wires. During production, the metal wires undergo multiple windings, which can easily lead to uneven performance due to localized stretching and deformation. Secondly, the rough surface of the metal wires affects the smoothness of the product surface. Thirdly, conductive wire meshes formed by weaving metal wires are prone to wrinkling under external force, resulting in unevenness. Furthermore, the performance of conductive wire meshes woven from a single material of metal wire is limited, affecting the product's conductivity and electromagnetic shielding performance. To improve the performance of conductive wire meshes, structures that add another conductive material to the surface have been developed. However, the mesh structure obtained by weaving metal wires has a small mesh size, which can easily cause the conductive material to clog the mesh openings when other conductive materials are sprayed on. Currently available carbon fiber conductive cloths are formed by weaving a single carbon fiber, and their conductivity and electromagnetic shielding performance do not meet the requirements for military applications. Utility Model Content

[0003] To address the problems existing in the prior art, this invention provides a conductive mesh based on a non-metallic substrate, which is lighter in weight, has a smoother and flatter surface, is less prone to deformation, and is easily prepared by coating processes such as spraying, magnetron sputtering, and vapor deposition.

[0004] This utility model achieves the above objectives by adopting the following technical solutions:

[0005] A conductive mesh based on a non-metallic substrate includes a mesh structure woven from non-metallic filaments, wherein the non-metallic filaments are made of carbon fiber, and a conductive layer is disposed on the surface of the mesh structure.

[0006] In one embodiment, the conductive layer includes a surface layer and several base layers, the surface layer being located on the surface of the outermost base layer, the surface layer being made of nickel, and the base layers being made of any one of copper, iron, silver, or aluminum.

[0007] Preferably, the base layer includes a copper layer and an iron layer sequentially disposed on the surface of the wire mesh structure, wherein the iron layer can improve the shielding effect of the conductive wire mesh on low-frequency electromagnetic waves.

[0008] In another embodiment, the conductive layer is made of nickel carbide.

[0009] Using nickel or nickel carbide as the outermost layer can improve the oxidation resistance of the conductive wire mesh.

[0010] Optionally, the conductive layer is formed by vapor deposition, electroplating, or magnetron sputtering.

[0011] Optionally, the mesh count of the wire mesh structure is 100-250 mesh, and the diameter of the carbon fiber is 20-30 μm.

[0012] Preferably, the weaving form of the mesh structure is plain weave, formed by alternating overlapping of mutually perpendicular warp and weft threads.

[0013] The beneficial effects of this utility model include, but are not limited to:

[0014] The conductive mesh based on non-metallic substrate provided by this utility model, through the combination of carbon fiber mesh structure and conductive layer, not only obtains excellent conductivity and electromagnetic shielding performance, but also makes the conductive mesh have the advantages of a smoother and more even surface and less prone to deformation.

[0015] Specifically, this invention utilizes a carbon fiber woven mesh structure with a conductive layer deposited on its surface. The conductive layer exhibits excellent conductivity, ensuring the conductivity and electromagnetic shielding performance of the conductive mesh. In particular, carbon fiber not only possesses a certain degree of conductivity but also boasts high strength. Compared to metal wires, it has a finer diameter, lower density, smoother surface, and is less prone to stretching and deformation, resulting in a conductive mesh with advantages such as thinner thickness, lighter weight, a smoother surface, and resistance to deformation. Furthermore, under the same weaving density, carbon fiber allows for a larger mesh aperture, preventing the conductive material from clogging the mesh during coating. This facilitates the fabrication of conductive meshes through coating processes such as vapor deposition, electroplating, or magnetron sputtering. Attached Figure Description

[0016] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0017] Figure 1 A cross-sectional structural diagram of the conductive wire mesh based on a non-metallic substrate provided by this utility model.

[0018] Figure 2 A schematic diagram of the structure of the conductive wire mesh based on a non-metallic substrate provided by this utility model;

[0019] Figure 3 This refers to existing conductive wire meshes obtained by weaving metal wires;

[0020] In the diagram, 1 represents the conductive layer; 21 represents the meridian; and 22 represents the parallel. Detailed Implementation

[0021] To clearly illustrate the technical features of this solution, the present invention will be described in detail below through specific embodiments and in conjunction with the accompanying drawings.

[0022] It should be noted that many specific details are set forth in the following description to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0023] like Figure 1 and Figure 2 As shown, the conductive mesh based on a non-metallic substrate provided by this utility model includes a mesh structure formed by weaving non-metallic wires, and a conductive layer 1 is disposed on the surface of the mesh structure. During production, carbon fibers are first woven to form a mesh structure and then the conductive layer 1 is deposited.

[0024] The non-metallic wires are made of carbon fiber, with a wire diameter of 20-30 μm. Carbon fiber has high strength and, compared to metallic wires, a finer wire diameter, lower density, smoother surface, and is less prone to stretching and deformation. This gives the conductive mesh advantages such as thinner thickness, lighter weight, smoother surface, and less deformation. Under the same weaving density, carbon fiber allows for larger mesh pore sizes, making it less likely for conductive materials to clog the mesh pores during coating. This facilitates the fabrication of conductive meshes through coating processes such as vapor deposition, electroplating, or magnetron sputtering.

[0025] This invention combines a carbon fiber mesh structure with a conductive layer, achieving excellent conductivity and electromagnetic shielding performance while also giving the conductive mesh a smoother, more even surface that is less prone to deformation.

[0026] In one embodiment, the conductive layer 1 includes a surface layer and several base layers. The surface layer is located on the surface of the outermost base layer and is made of nickel. The base layers are made of any one of copper, iron, silver, or aluminum. Specifically, copper, iron, and nickel layers can be sequentially plated on the surface of the mesh structure.

[0027] In another embodiment, conductive layer 1 is made of nickel carbide.

[0028] Using nickel or nickel carbide as the outermost layer can improve the oxidation resistance of conductive wire mesh.

[0029] Specifically, the weaving method of the mesh structure is plain weave, which produces a mesh structure with square holes. Plain weave is an existing textile technology, formed by alternating overlapping of mutually perpendicular warp threads 21 and weft threads 22, both of which are carbon fiber filaments.

[0030] Preferably, the mesh count of the wire mesh structure is 100-250 mesh.

[0031] Compared to Figure 3 The mesh structure shown is obtained by spinning metal wires. In the conductive mesh based on non-metallic substrate provided by this utility model, the diameter of carbon fiber is smaller while meeting the strength requirements. Therefore, the mesh size of the mesh structure formed by spinning carbon fiber is increased when the spinning density is the same.

[0032] In the description of this utility model, the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this utility model and simplifying the description, and is not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0033] In this utility model, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," "join," and "fix" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0034] Any aspects of this utility model not described in detail are known to those skilled in the art.

Claims

1. A conductive wire mesh based on a non-metallic substrate, characterized in that, The invention includes a mesh structure formed by weaving non-metallic filaments, wherein the non-metallic filaments are made of carbon fiber; a conductive layer is disposed on the surface of the mesh structure; the conductive layer is nickel carbide, or the conductive layer includes a surface layer and several base layers, wherein the surface layer is located on the surface of the outermost base layer, the surface layer is made of nickel, and the base layer includes a copper layer and an iron layer disposed sequentially on the surface of the mesh structure. The mesh size of the wire mesh is 100-250 mesh, and the diameter of the carbon fiber is 20-30 μm.

2. The conductive wire mesh based on a non-metallic substrate according to claim 1, characterized in that, The conductive layer is formed by vapor deposition, electroplating or magnetron sputtering.

3. The conductive wire mesh based on a non-metallic substrate according to claim 1, characterized in that, The textile form of the mesh structure is plain weave, formed by alternating overlapping of mutually perpendicular warp and weft threads.

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