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Nickel plated carbon fiber membrane and preparation method thereof as well as shielding structure and preparation method thereof

A technology of nickel-plated carbon fiber and production method, which is applied in the directions of carbon fiber, fiber treatment, fiber chemical characteristics, etc., to achieve the effect of good electromagnetic shielding performance, good mechanical and physical properties, and enhancing electromagnetic shielding performance

Active Publication Date: 2018-03-20
CRRC QINGDAO SIFANG CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The main purpose of this application is to provide a nickel-plated carbon fiber film, its manufacturing method, shielding structure and its preparation method, to solve the problem that the nickel-plated carbon fiber film in the prior art cannot have good mechanical properties, mechanical properties and shielding properties

Method used

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  • Nickel plated carbon fiber membrane and preparation method thereof as well as shielding structure and preparation method thereof
  • Nickel plated carbon fiber membrane and preparation method thereof as well as shielding structure and preparation method thereof
  • Nickel plated carbon fiber membrane and preparation method thereof as well as shielding structure and preparation method thereof

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preparation example Construction

[0093] In order to improve the reliability and firmness of the bonding of each layer of the shielding structure, in one embodiment of the present application, the above-mentioned preparation method further includes: performing thermocompression molding on the above-mentioned pre-shielding unit or forming a plurality of stacked above-mentioned pre-shielding units The unit is thermocompressed to form the shielding structure described above.

[0094] In one embodiment, the above-mentioned thermocompression forming process includes: setting an adhesive between adjacent structural layers that are pre-heated and press-formed to form a pre-heated and pressed structure. When the shielding structure only includes one shielding unit, only Adhesives need to be provided between the various structural layers in the pre-shielding unit. When the shielding structure includes multiple shielding units, adhesives need to be provided between the two shielding units; Pressing: curing the adhesive ...

Embodiment 1

[0105] The fabrication steps of the shielding structure include:

[0106] Soak the carbon fiber base cloth (grade 3k, t700, 200g surface density) in acetone for 30 minutes, clean the surface of the carbon fiber base cloth with distilled water, and then wash it in HF and H 2 SO 4 The molar ratio is 4:6 in the 10% (volume concentration) mixed dilute solution soaking 10min, then wash with distilled water, carbon fiber base cloth in SnCl 2 The mass concentration is 5% dilute HCl acid solution for 30min, and SnCl 2 The temperature of the dilute HCl acid solution is 30 ℃ (that is, the soaking temperature), and then cleaned with distilled water, and the carbon fiber base cloth is placed in 0.025% (mass ratio) of PdCl 2 The activation treatment is carried out in the dilute acid solution, the treatment time is 20min, and the PdCl 2 The temperature of the dilute acid solution is 30°C (that is, the soaking temperature), and the two dilute acid solutions are dilute hydrochloric acid so...

Embodiment 2

[0111] Soak the carbon fiber base cloth (grade 6k, t700, 300g surface density) in acetone for 30 minutes, clean the surface of the carbon fiber base cloth with distilled water, and then dry it in HF and H 2 SO 4 The molar ratio is 4:6 in the 10% mixed dilute solution soaked for 10min, and then washed with distilled water, the carbon fiber base cloth in SnCl 2 The mass concentration is 5% dilute HCl acid solution for 30min, and SnCl 2 The temperature of the dilute HCl acid solution is 30 ℃ (that is, the soaking temperature), and then cleaned with distilled water, and the carbon fiber base cloth is placed in 0.025% (mass ratio) of PdCl 2 The activation treatment is carried out in the dilute acid solution, the treatment time is 20min, and the PdCl 2 The temperature of the dilute acid solution is 30°C (that is, the soaking temperature), and the two dilute acid solutions are dilute hydrochloric acid solutions.

[0112] The plating solution includes 50 parts of nickel sulfate, 50...

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Abstract

The invention provides a nickel plated carbon fiber membrane and a preparation method thereof as well as a shielding structure and a preparation method thereof. The nickel plated carbon fiber membranecomprises carbon fiber base cloth and a nickel metal layer, wherein metal colloid granules are adhered to the surface of the carbon fiber base cloth; and the nickel metal layer is arranged on the exposed surface of the carbon fiber base cloth and surfaces, far away from the carbon fiber base cloth, of the metal colloid granules. According to the nickel plated carbon fiber membrane, the metal colloid granules are adhered to the carbon fiber base cloth, so that the metal colloid granules have adhesiveness, the nickel metal layer is relatively well adhered to the carbon fiber base cloth, the electromagnetic shielding property of the nickel plated carbon fiber membrane is further improved, the nickel plated carbon fiber membrane is not only relatively good in mechanical property and physicalproperty, but also relatively good in electromagnetic shielding property.

Description

technical field [0001] The present application relates to the field of shielding materials, in particular to a nickel-plated carbon fiber film, its manufacturing method, shielding structure and its preparation method. Background technique [0002] As we all know, shielding effectiveness is the basis for measuring the ability of electromagnetic shielding composite materials. The shielding effectiveness of electronic equipment for general industrial use is required to be greater than 30dB, while the shielding material for precision instruments and equipment requires a shielding effectiveness of 50dB or even more than 60dB. At the same time, the material must also have good environmental stability so that electronic equipment can be used in various environments. can work stably. [0003] According to many reports, it is difficult to achieve the shielding effectiveness of various conductive polymer materials while achieving high physical and mechanical properties, and it is dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83B32B9/00B32B9/04B32B15/02B32B15/20B32B7/12B32B33/00B32B37/06B32B37/10B32B37/12H05K9/00D06M101/40
CPCH05K9/0088D06M11/83B32B5/26B32B7/12B32B15/02B32B15/14B32B15/20B32B33/00B32B37/06B32B37/10B32B37/1284B32B2255/02B32B2255/205B32B2262/106B32B2307/212B32B2457/00D06M2101/40B29C70/882D01F1/106D01F11/121D01F11/122D01F11/14
Inventor 梁建英肖婵娟焦京海田庆王勇刘玉文
Owner CRRC QINGDAO SIFANG CO LTD
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