CN219217883U

CN219217883U - Conductive cloth with ultrathin single-sided adhesive layer

Info

Publication number: CN219217883U
Application number: CN202320014071.1U
Authority: CN
Inventors: 卢忠莹; 杨荔缨; 李钊; 莫自鸣; 李青深
Original assignee: Wuzhou Hgp Advanced Materials Technology Corp ltd
Current assignee: Wuzhou Hgp Advanced Materials Technology Corp ltd
Priority date: 2023-01-04
Filing date: 2023-01-04
Publication date: 2023-06-20
Anticipated expiration: 2033-01-04

Abstract

The utility model discloses a conductive cloth with an ultrathin single-sided adhesive layer, which relates to the technical field of conductive materials. The utility model can coat the nano carbon layer on the fiber cloth layer, form the carbon conductive layer on the surface of the fiber cloth layer, and then make the conductive cloth reflect, absorb and penetrate according to the object property when encountering electromagnetic wave through the vacuum plating layer and the electroplated layer, thereby providing excellent electromagnetic shielding effect.

Description

Conductive cloth with ultrathin single-sided adhesive layer

Technical Field

The utility model relates to the technical field of conductive materials, in particular to a conductive cloth with an ultrathin single-sided adhesive layer.

Background

The method for effectively preventing electromagnetic radiation adopts electromagnetic shielding, namely, special metal materials with good electric conduction and magnetic conduction performance are utilized to block the transmission of electromagnetic radiation through reflection effect and absorption effect.

The conductive cloth is a material integrating conductive and electromagnetic shielding functions, and is formed by pre-treating fiber cloth (common poly-acetate fiber cloth) and then electroplating a metal coating to make the fiber cloth have metal characteristics. However, the "conductive cloth" in the prior art cannot be applied to materials for the development of precision and thinning of electronic equipment due to the high thickness, poor temperature resistance, low toughness and the like. Therefore, the present utility model provides a conductive fabric with an ultrathin single-sided adhesive layer to solve the above-mentioned problems.

Disclosure of Invention

The utility model aims to provide a conductive cloth with an ultrathin single-sided adhesive layer, which solves the problem that the conductive cloth in the prior art cannot be applied to materials for the precise thinning development of electronic equipment due to the high thickness, poor temperature resistance, low toughness and the like.

In order to achieve the above object, the basic scheme of the present utility model is as follows: the utility model provides a conductive fabric with ultra-thin single face glue film, includes the fiber cloth layer to the fiber cloth layer is as the substrate, and the upper and lower both sides on fiber cloth layer outwards are equipped with nanometer carbon layer and composite metal film layer in proper order, and conductive tape layer has been adhered to conductive fabric one side.

Principle of basic scheme: according to the fiber cloth layer, the carbon conductive layer is formed on the surface of the fiber cloth layer by coating the nano carbon layer, and then the conductive cloth can reflect, absorb and penetrate according to the properties of an object when encountering electromagnetic waves by the vacuum plating layer and the electroplated layer, so that an excellent electromagnetic shielding effect is provided.

The beneficial effects achieved are that: the conductive cloth provided by the utility model has good conductivity and electromagnetic wave shielding effect, and is light and thin, good in flexibility, good in secondary processability such as bending durability manuscript, surface gluing and adhesion, and the like. The electromagnetic shielding film on the conductive cloth has the characteristics of good binding force of a metal film layer, good solidification and high shielding effectiveness, and can be widely used in modern high-end electronic information products such as notebook computers, mobile phones, tablet computers, liquid crystal display modules (LCM), digital cameras and the like and materials for precise thinning development of communication equipment.

Further, the composite metal film layer comprises a vacuum plating layer and an electroplated layer, wherein the vacuum plating layer and the electroplated layer are sequentially arranged on one side close to the nano carbon layer, and the thickness of the composite metal film layer is smaller than 875nm.

The basic scheme has the following principle and beneficial effects: the metal nickel is vapor deposited in a vacuum state, nickel metal particles are embedded and infiltrated into the carbon conductive layer to form a carbon metal embedded and infiltrated mixed layer, and then the carbon nickel embedded and infiltrated mixed layer is formed through vacuum nickel plating, so that the high-reliability electroplating device has high reliability, and an excellent conductive transition layer is provided in the subsequent electroplating process, so that the guarantee is provided for the mechanical property and electromagnetic property of the material of the plating layer.

Further, the vacuum plating layer comprises a vacuum nickel plating layer and a vacuum copper plating layer, the vacuum nickel plating layer and the vacuum copper plating layer are sequentially arranged on one side close to the nano carbon layer, and the thickness of the vacuum plating layer is smaller than 350nm.

The basic scheme has the following principle and beneficial effects: because the binding force between copper and the base material is poor, nickel is firstly plated as a transition layer, then copper is plated as a crystal planting layer, the conductive base material entering the electroplating process is guaranteed to be good in conductivity, and the follow-up electroplating cannot generate plating leakage.

Further, the electroplated layer comprises a first electroplated nickel layer, an electroplated copper layer and a second electroplated nickel layer, and the first electroplated nickel layer, the electroplated copper layer and the second electroplated nickel layer are sequentially arranged on one side close to the vacuum plating layer.

The basic scheme has the following principle and beneficial effects: the sequence of the electroplated layers is as follows: the nickel, copper and nickel are electroplated to form the conductive layer with 5 metal film layers combined, and the conductive layer has extremely strong conductive performance and shielding performance. The base material is ultrathin fiber cloth, so that the stress effect generated in the electroplating process can be prevented, and the flatness of the electroplated base material is ensured.

Further, the thickness of the fiber cloth layer is 0.03-0.05mm, and the thickness of the nano carbon layer is less than 700nm.

Further, the thickness of the conductive adhesive tape layer is 0.004-0.02mm.

The basic scheme has the following principle and beneficial effects: the conductive cloth provided by the utility model is light, thin and uniform, strong in metal adhesion, small in surface impedance, and good in effect and high in cost performance, and the thickness of the conductive cloth can reach 0.039-0.055mm after the conductive adhesive tape is attached to the conductive cloth.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.

Fig. 2 is a schematic structural diagram of a composite metal film layer according to an embodiment of the present application.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "vertical," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model.

In the description of the present utility model, unless otherwise specified and defined, it should be noted that the terms "mounted," "connected," and "coupled" are to be construed broadly, and may be, for example, mechanical or electrical, or may be in communication with each other between two elements, directly or indirectly through intermediaries, as would be understood by those skilled in the art, in view of the specific meaning of the terms described above.

Reference numerals in the drawings of the specification include: the carbon nano-composite coating comprises a fiber cloth layer 1, a nano-carbon layer 2, a composite metal film layer 3, a vacuum plating layer 4, a plating layer 5, a vacuum nickel plating layer 6, a vacuum copper plating layer 7, a first nickel plating layer 8, a copper plating layer 9, a second nickel plating layer 10 and a conductive adhesive tape layer 11.

Further details are provided below with reference to the specific embodiments.

An example is substantially as shown in figures 1 and 2: the conductive cloth with the ultrathin single-sided adhesive layer comprises a fiber cloth layer 1, wherein the fiber cloth layer 1 is made of polyethylene fibers, the thickness of the fiber cloth layer 1 is 0.03-0.05mm, the fiber cloth layer 1 is taken as a base material, a nano carbon layer 2 and a composite metal film layer 3 are sequentially arranged on the upper side and the lower side of the fiber cloth layer 1 outwards, the thickness of the nano carbon layer 2 is less than 700nm, one side of the conductive cloth is adhered with a conductive adhesive tape layer 11, and the thickness of the conductive adhesive tape layer 11 is 0.004-0.02mm; the composite metal film layer 3 comprises a vacuum plating layer 4 and an electroplated layer 5, wherein the vacuum plating layer 4 and the electroplated layer 5 are sequentially arranged on one side close to the nano carbon layer 2, and the thickness of the composite metal film layer 3 is less than 875nm; the vacuum plating layer 4 comprises a vacuum nickel plating layer 6 and a vacuum copper plating layer 7, the vacuum nickel plating layer 6 and the vacuum copper plating layer 7 are sequentially arranged on one side close to the nano carbon layer 2, and the thickness of the vacuum plating layer 4 is smaller than 350nm; the electroplated layer 5 comprises a first electroplated nickel layer 8, an electroplated copper layer 9 and a second electroplated nickel layer 10, and the first electroplated nickel layer 8, the electroplated copper layer 9 and the second electroplated nickel layer 10 are sequentially arranged on one side close to the vacuum plating layer 4.

The specific implementation process is as follows: the fiber cloth layer 1 provided by the utility model is used for bonding one side of the fiber cloth layer 1 bonded with the conductive adhesive tape layer 11 to a power supply piece needing electromagnetic shielding, and shielding electromagnetic waves while not affecting conductivity. By coating the nano carbon layer 2 first, a carbon conductive layer is formed on the surface of the fiber cloth layer 1, and then by the vacuum plating layer 4 and the plating layer 5, the conductive cloth can reflect, absorb and transmit according to the properties of the object when encountering electromagnetic waves, thereby providing excellent electromagnetic shielding effect. The metal nickel is vapor deposited in a vacuum state, nickel metal particles are embedded and infiltrated into the carbon conductive layer to form a carbon metal embedded and infiltrated mixed layer, and then the carbon nickel embedded and infiltrated mixed layer is formed through vacuum nickel plating, so that the high-reliability electroplating device has high reliability, and an excellent conductive transition layer is provided in the subsequent electroplating process, so that the guarantee is provided for the mechanical property and electromagnetic property of the material of the plating layer.

Because the binding force between copper and the base material is poor, nickel is firstly plated as a transition layer, then copper is plated as a crystal planting layer, the conductive base material entering the electroplating process is guaranteed to be good in conductivity, and the follow-up electroplating cannot generate plating leakage.

The sequence of the electroplated layers 5 is: the nickel, copper and nickel are electroplated to form the conductive layer with 5 metal film layers combined, and the conductive layer has extremely strong conductive performance and shielding performance. The base material is ultrathin fiber cloth, so that the stress effect generated in the electroplating process can be prevented, and the flatness of the electroplated base material is ensured.

The foregoing is merely exemplary of the present utility model and the specific structures and/or characteristics of the present utility model that are well known in the art have not been described in detail herein. It should be noted that modifications and improvements can be made by those skilled in the art without departing from the structure of the present utility model, and these should also be considered as the scope of the present utility model, which does not affect the effect of the implementation of the present utility model and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.

Claims

1. The utility model provides a conductive cloth with ultra-thin single face glue film which characterized in that: the conductive fabric comprises a fiber cloth layer, wherein the fiber cloth layer is taken as a base material, a nano carbon layer and a composite metal film layer are sequentially arranged on the upper side and the lower side of the fiber cloth layer outwards, and a conductive adhesive tape layer is adhered on one side of the conductive cloth;

the composite metal film layer comprises a vacuum plating layer and an electroplated layer, wherein the vacuum plating layer and the electroplated layer are sequentially arranged on one side close to the nano carbon layer, and the thickness of the composite metal film layer is smaller than 875nm.

2. The conductive cloth with an ultrathin single-sided adhesive layer according to claim 1, wherein: the vacuum plating layer comprises a vacuum nickel plating layer and a vacuum copper plating layer, wherein the vacuum nickel plating layer and the vacuum copper plating layer are sequentially arranged on one side close to the nano carbon layer, and the thickness of the vacuum plating layer is smaller than 350nm.

3. A conductive fabric with ultra-thin single sided tape as claimed in claim 2, wherein: the electroplated layer comprises a first electroplated nickel layer, an electroplated copper layer and a second electroplated nickel layer, and the first electroplated nickel layer, the electroplated copper layer and the second electroplated nickel layer are sequentially arranged on one side close to the vacuum plating layer.

4. A conductive fabric with an ultra-thin single sided tape as claimed in claim 3, wherein: the thickness of the fiber cloth layer is 0.03-0.05mm, and the thickness of the nano carbon layer is less than 700nm.

5. The conductive fabric with an ultra-thin single-sided tape as claimed in claim 4, wherein: the thickness of the conductive adhesive tape layer is 0.004-0.02mm.