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

A technology of electromagnetic shielding materials and manufacturing methods, which is applied in the fields of magnetic field/electric field shielding, metal material coating technology, electrical components, etc., and can solve the problems of affecting the performance of electromagnetic shielding films, reducing the thickness of electromagnetic shielding materials, and increasing the complexity of electromagnetic shielding films and other issues, to achieve the effect of improving the use effect and flexibility of use, reducing material costs, and overcoming poor plating
CN113186488APending Publication Date: 2021-07-30深圳市乐工新技术有限公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
深圳市乐工新技术有限公司
Publication Date
2021-07-30

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Abstract

The invention discloses a manufacturing method of an electromagnetic shielding material, the electromagnetic shielding material manufactured by the manufacturing method and an electronic product applying the electromagnetic shielding material. The manufacturing method of the electromagnetic shielding material comprises the following steps that a polymer film layer is provided, and the thickness of the polymer film layer is larger than or equal to 1.5 microns and smaller than or equal to 6 microns; at least one surface of a polymer film is subjected to roughening treatment, so that the dyne value of the at least one surface is larger than or equal to 44 and smaller than or equal to 70; and at least one metal shielding layer is deposited on the roughened surfaces. According to the manufacturing method of the electromagnetic shielding material, the thickness of the polymer film layer can be reduced by 75% to the maximum extent, the flexibility of the electromagnetic shielding material is better, the using effect is better, and the product cost is lower.
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Description

technical field

[0001] The invention relates to the technical field of electromagnetic shielding, in particular to a manufacturing method of an electromagnetic shielding material, an electromagnetic shielding material prepared by the method, and an electronic product using the electromagnetic shielding material. Background technique

[0002] The signal of the communication cable will encounter the interference of high-voltage electromagnetic field, low-voltage electromagnetic field, or high-frequency electric wave during the transmission process. The longer the cable length, the greater the interference and the more loss. To solve this problem, it is necessary to coat the communication cable with electromagnetic shielding material, such as electromagnetic shielding film, to resist electromagnetic interference.

[0003] In the existing electromagnetic shielding film structure, a metal layer is usually plated on a polymer film by physical vapor deposition, such as by vacuum pl...

Claims

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