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Preparation method of copper-coated carbon fabric electromagnetic shielding material

An electromagnetic shielding material, copper-coated carbon technology, applied in shielding materials, magnetic field/electric field shielding, carbon fiber and other directions, can solve the problems of restricting widespread use, increasing the complexity of the preparation process, etc., to reduce production costs, good flexibility, mild response

Active Publication Date: 2021-03-12
NANJING UNIV OF INFORMATION SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although fabrics with good electrical conductivity and electromagnetic shielding functions have been obtained by this method, the use of supercritical carbon dioxide fluid to activate the fabric increases the complexity of the preparation process and limits the widespread use of this method.

Method used

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  • Preparation method of copper-coated carbon fabric electromagnetic shielding material
  • Preparation method of copper-coated carbon fabric electromagnetic shielding material
  • Preparation method of copper-coated carbon fabric electromagnetic shielding material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A copper-plated carbon fabric electromagnetic shielding material and a preparation method thereof of the present invention comprise the following steps:

[0031] Step 1, ultrasonically clean the 2cm×3cm carbon fabric in 10% dilute hydrochloric acid, deionized water, acetone and ethanol in sequence, take it out and dry it for 12 hours;

[0032] Step 2, soak the carbon fabric obtained in step 1 into a solution of 0.01 g of dopamine hydrochloride dissolved in 5 mL of Tris-HCl.

[0033] Step 3, add 7.31g of ethylenediaminetetraacetic acid into 120mL of deionized water, add potassium hydroxide to adjust the pH to 5.8 while stirring, and the solution is clear and transparent;

[0034] Step 4, respectively dissolving 4.26g copper chloride dihydrate and 3.09g boric acid in deionized water, stirring until clear and transparent, then mixing, then adding the EDTA solution obtained in step 3 into the mixed solution and stirring evenly;

[0035] Step 5, preparing a 1 mol / L potassiu...

Embodiment 2

[0039] In this embodiment, in step 7, stirring was continued for 1 h under heating, and other steps and parameters were the same as in embodiment 1.

Embodiment 3

[0041] In this embodiment, in step 7, stirring was continued for 1.5 h under heating, and other steps and parameters were the same as in embodiment 1.

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Abstract

The invention discloses a preparation method of a copper-coated carbon fabric electromagnetic shielding material. A wet chemical method is adopted, and ultrasonic cleaning, activation, pH adjustment,heating reaction and drying are carried out in sequence to obtain the copper-coated carbon fabric electromagnetic shielding material. The preparation method disclosed by the invention is mild in reaction and free of any damage to a matrix, and can realize good flexibility, mechanical property and self-cleaning property on the basis of realizing excellent electromagnetic shielding property; and meanwhile, the complex technological process of copper coating of a carbon fabric can be effectively reduced, the production cost is reduced, and the requirements of no special device, simplicity, feasibility, energy conservation and environmental protection are met.

Description

technical field [0001] The invention relates to an electromagnetic shielding material, in particular to a preparation method of a copper-plated carbon fabric electromagnetic shielding material. Background technique [0002] At present, the materials used for electromagnetic shielding at home and abroad mainly include high-conductivity metal silver, graphene, MXene, and polymer films and their composites. Although these materials show good shielding performance, they are also expensive and difficult to prepare. Problems such as complex process and poor material stability. Therefore, copper plating on the surface of cheap and easy-to-obtain carbon fabric can not only obtain good electrical conductivity and mechanical properties, but also maintain the original flexibility of the fabric, and has broad application prospects in the field of electromagnetic shielding. At present, the methods for plating metal layers on the substrate surface mainly include sputter coating, electrop...

Claims

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Application Information

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IPC IPC(8): D06M11/83H05K9/00D06M101/40
CPCD06M11/83H05K9/009D06M2101/40
Inventor 权斌马亚斌黄啸谷王宇
Owner NANJING UNIV OF INFORMATION SCI & TECH
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