Manufacturing method of flexible ultrathin conductive material

A technology of conductive materials and production methods, applied in conductive layers, electrical components, magnetic field/electric field shielding and other directions on an insulating carrier, can solve the problems of difficult to thin conductive cloth, high cost, and large environmental pollution, and improve the use of Effects and flexibility of use, increased dyne value, easy to accept effects

Pending Publication Date: 2021-01-22
深圳市乐工新技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the production process of the existing conductive cloth is long, after several chemical plating or electroplating processes, the environmental pollution is large, and the adhesion of the metal layer is not ideal.
Moreover, due to the requirements of the process, the thickness of the conductive cloth is difficult to make thin, and its thickness is usually more than 18 microns; in addition, due to the difficulty of precise control in the production process of the conductive cloth, the product qualification rate is low and the cost is high

Method used

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  • Manufacturing method of flexible ultrathin conductive material
  • Manufacturing method of flexible ultrathin conductive material
  • Manufacturing method of flexible ultrathin conductive material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0061] A film layer 10 is provided, the thickness of the film layer 10 is 1.5 microns, and the material is polyethylene terephthalate.

[0062] The film layer 10 is baked at a temperature of 45 degrees centigrade for 24 hours.

[0063] The two surfaces of the baked film layer 10 are subjected to corona treatment, and the corona treatment time is 1 second. The dyne value of both surfaces after corona treatment was 56.

[0064] A layer of metal shielding layer is sputtered on the two surfaces of the film layer 10 after corona treatment, using copper as the target material, using continuous winding coating, the coating process conditions are: vacuum degree 0.2Pa, continuous winding coating speed It is 15m / min, the coating current is 6A, and the coating voltage is 350V. The metal shielding layer formed on both surfaces of the film layer 10 has a thickness of 0.6 microns.

[0065] The metal shield is subjected to anti-oxidation treatment with a peroxygen protectant.

Embodiment 2

[0067] A thin film layer 10 is provided, the thickness of the thin film layer 10 is 6 microns, and the material is polycarbonate.

[0068] The film layer 10 is baked at a temperature of 80 degrees centigrade for 1 hour.

[0069] Corona treatment is performed on the two surfaces of the baked film layer 10, and the corona treatment time is 10 seconds respectively. The dyne value of both surfaces after corona treatment was 54.

[0070] The first layer of metal shielding layer is sputtered on the two surfaces of the corona-treated film layer 10, using zinc as the target material, and adopts continuous winding coating. The coating process conditions are: vacuum degree 0.02Pa, continuous winding The plating speed is 30m / min, the plating current is 30A, and the plating voltage is 680V. The thickness of the first metal shielding layer formed on the two surfaces of the film layer 10 is 1 micron.

[0071] The second metal shielding layer is sputtered on the surface of the two first m...

Embodiment 3

[0073] A film layer 10 is provided, the thickness of the film layer 10 is 2 microns, and the material is polypropylene.

[0074] The two surfaces of the film layer 10 are subjected to corona treatment, and the corona treatment time is 5 seconds respectively. The dyne values ​​of the two surfaces after corona treatment were 40 respectively.

[0075] A layer of metal shielding layer is sputtered on the two surfaces of the thin film layer 10 after corona treatment, with titanium as the target material, continuous winding coating is adopted, the coating process conditions are: vacuum degree 0.2Pa, continuous winding coating The speed is 295m / min, the coating current is 30A, and the coating voltage is 700V. The thickness of each metal shielding layer formed on both surfaces of the film layer 10 is 0.5 micron; or the thickness of one metal shielding layer is 1 micron, and the thickness of the other metal shielding layer is 0.5 micron.

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Abstract

The invention discloses a manufacturing method of a flexible ultra-thin conductive material, the flexible ultra-thin conductive material prepared by adopting the manufacturing method and an electronicproduct applying the flexible ultra-thin conductive material. The manufacturing method of the flexible ultra-thin conductive material comprises the following steps of: providing a double-sided non-conducting thin film layer, wherein the thickness of the thin film layer is greater than or equal to 1.0 micron and less than or equal to 6 microns; roughening the thin film layer to enable a dyne valueof the thin film layer to be larger than or equal to 44 and smaller than or equal to 70; and carrying out vapor deposition on the two roughened surfaces, and forming at least one metal shielding layer on each surface, wherein the metal shielding layers on the two surfaces are insulated and isolated by the thin film layer. According to the manufacturing method of the flexible ultra-thin conductivematerial, the flexible ultra-thin conductive material with the two non-conducting sides is very thin.

Description

technical field [0001] The invention relates to the technical field of electromagnetic shielding, in particular to a manufacturing method of a flexible ultra-thin conductive material, a flexible ultra-thin conductive material prepared by the method, and electronic products using the flexible ultra-thin conductive material. Background technique [0002] Conductive cloth is a flexible and ultra-thin conductive material with good conductivity and electromagnetic wave shielding effect. Electromagnetic shielding conductive cloth is widely used in electronics, instrumentation and other industries due to its excellent vertical conduction and shielding performance, and can prevent damage and aging of electronic components caused by static electricity. However, the production process of the existing conductive cloth is long, and after several chemical plating or electroplating processes, the environmental pollution is large, and the adhesion of the metal layer is not ideal. Moreover...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H05K9/00
CPCH01B5/14H05K9/00
Inventor 夏祥国李林军
Owner 深圳市乐工新技术有限公司
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