Manufacturing method of electromagnetic shielding material, electromagnetic shielding material and electronic product

A technology of electromagnetic shielding material and manufacturing method, applied in magnetic field/electric field shielding, metal material coating process, electrical components, etc., can solve the problems of difficult to thin conductive cloth, high cost, large environmental pollution, etc. Effect and flexibility of use, boosting energy, simple process effect

Pending Publication Date: 2020-09-04
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, and 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, th

Method used

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  • Manufacturing method of electromagnetic shielding material, electromagnetic shielding material and electronic product
  • Manufacturing method of electromagnetic shielding material, electromagnetic shielding material and electronic product
  • Manufacturing method of electromagnetic shielding material, electromagnetic shielding material and electronic product

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example one

[0045] A polymer film layer is provided, the thickness of the polymer film layer is 1.5 microns, and the material is polyethylene terephthalate.

[0046] A polymer film layer is provided, the thickness of the polymer film layer is 1.5 microns, and the material is polyethylene terephthalate.

[0047] The polymer film layer is baked, the baking temperature is 45 degrees Celsius, and the baking time is 24 hours.

[0048] Laser perforation is performed on the baked polymer film layer to form a plurality of through holes in the polymer film layer. The apertures of the through holes are 0.1 μm, the pitch is 0.1 μm, and the shapes of the through holes are circular.

[0049] The two surfaces of the perforated polymer film layer were subjected to corona treatment, and the corona treatment time was 1 second. The dyne value of the two surfaces after corona treatment was 56.

[0050] A metal shielding layer was sputtered on the two surfaces of the polymer film layer after the c...

Example Embodiment

[0052] Example two

[0053] A polymer film layer is provided. The polymer film layer has a thickness of 6 microns and is made of polycarbonate.

[0054] The polymer film layer is baked, the baking temperature is 80 degrees Celsius, and the baking time is 1 hour.

[0055] Laser perforation is performed on the baked polymer film layer to form a plurality of through holes in the polymer film layer, the aperture of the plurality of through holes is 100 microns, and the hole pitch is 100 microns. The shape of several through holes is triangular.

[0056] The two surfaces of the perforated polymer film layer were subjected to corona treatment, and the corona treatment time was 10 seconds respectively. The dyne value of the two surfaces after corona treatment was 54.

[0057] The first metal shielding layer was sputtered on the two surfaces of the polymer film layer after the corona treatment and the walls of several through holes respectively. The zinc was used as the target and the continu...

Example Embodiment

[0059] Example three

[0060] A polymer film layer is provided. The polymer film layer has a thickness of 2 microns and is made of polypropylene.

[0061] Perform laser drilling on the polymer film layer to form a plurality of through holes in the polymer film layer. The hole diameter of the through holes is 10 microns, the hole pitch is 10 microns, and the shape of the through holes is quadrilateral.

[0062] The two surfaces of the polymer film layer were subjected to corona treatment, and the corona treatment time was 5 seconds respectively. The dyne values ​​of the two surfaces after corona treatment were 40 respectively.

[0063] A metal shielding layer was sputtered on the two surfaces of the polymer film layer after the corona treatment and the walls of several through holes respectively. The titanium was used as the target and the continuous winding coating was used. The coating process conditions are: vacuum The temperature is 0.2Pa, the continuous winding plating speed is 2...

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Abstract

The invention discloses a manufacturing method of an electromagnetic shielding material, the electromagnetic shielding material prepared by the manufacturing method and an electronic product applyingthe electromagnetic shielding material. The manufacturing method of the electromagnetic shielding material comprises the following steps: a polymer film layer is provided, and the thickness of the polymer film layer is larger than or equal to 1.5 micrometers and smaller than or equal to 6 micrometers; the polymer film layer is punched, so that a plurality of through holes are formed in the polymerfilm layer, the hole diameter of the through holes ranges from 0.1 micrometer to 100 micrometers, and the hole distance ranges from 0.1 micrometer to 100 micrometers; roughening the polymer film layer to enable the dyne value of the polymer film layer to be greater than or equal to 44 and less than or equal to 70; vapor deposition is carried out on the two roughened surfaces respectively, and atleast one metal shielding layer is formed on each surface and the hole walls of the through holes respectively; according to the technical scheme, the electromagnetic shielding material with the two-sided conduction function is very thin and good in flexibility.

Description

technical field [0001] The invention relates to the technical field of electromagnetic shielding, in particular to a method for manufacturing an electromagnetic shielding material, an electromagnetic shielding material prepared by the method, and electronic products using the electromagnetic shielding material. Background technique [0002] Conductive cloth is an electromagnetic shielding 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 electronic components from being damaged and aged due to static electricity. However, the production process of the existing conductive cloth is long, through 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 requ...

Claims

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Application Information

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IPC IPC(8): C08J7/06C08J7/12C08L67/02C08L69/00C08L23/12C08L23/20C08L79/08C23C14/20C23C14/34H05K9/00
CPCC08J7/06C08J7/123C23C14/34C23C14/205H05K9/0081C08J2367/02C08J2369/00C08J2323/12C08J2323/20C08J2379/08
Inventor 夏祥国黄太
Owner 深圳市乐工新技术有限公司
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