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Electromagnetic shielding composite membrane cloth and preparation method

An electromagnetic shielding and composite film technology, applied in the fields of magnetic field/electric field shielding, electrical components, electrolytic organic material coating, etc., can solve the problems of high price, achieve the effects of preventing oxidation or corrosion, good flexibility, and improving comprehensive performance

Active Publication Date: 2020-11-27
JIANGXI LONGTAI NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although pure metal or alloy materials have always been outstanding in terms of shielding effectiveness, these materials are basically hard metal materials, and there is still the problem of expensive

Method used

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  • Electromagnetic shielding composite membrane cloth and preparation method
  • Electromagnetic shielding composite membrane cloth and preparation method
  • Electromagnetic shielding composite membrane cloth and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] like figure 1 As shown, an electromagnetic shielding composite film cloth includes:

[0036] Carrier base cloth 1;

[0037] The conductive layer 2 is located on one side of the carrier base cloth 1;

[0038] The alloy layer 3 is located on the side of the conductive layer 2 away from the carrier base cloth 1;

[0039] The alloy layer 3 is an Ag-Ce alloy layer, and the conductive layer 2 is a graphene conductive layer.

[0040] In some embodiments, it further includes: a high molecular polymer layer 4, the high molecular polymer layer 4 is located on the side of the alloy layer 3 away from the carrier base cloth 1, and the high molecular polymer layer 4 is doped with titanium dioxide;

[0041] The material of the carrier base cloth 1 is one or more of cotton, hemp, silk or chemical fiber.

[0042] It should be noted that, in the embodiment of the present application, the material of the carrier base cloth 1 is one or more of cotton, hemp, silk or chemical fiber. Obvi...

Embodiment 2

[0055] An electromagnetic shielding composite film cloth, comprising:

[0056] Carrier base cloth 1;

[0057] The conductive layer 2 is located on one side of the carrier base cloth 1;

[0058] The alloy layer 3 is located on the side of the conductive layer 2 away from the carrier base cloth 1;

[0059] The alloy layer 3 is an Ag-Ce alloy layer, and the conductive layer 2 is a graphene conductive layer.

[0060] In some embodiments, it further includes: a high molecular polymer layer 4, the high molecular polymer layer 4 is located on the side of the alloy layer 3 away from the carrier base cloth 1, and the high molecular polymer layer 4 is doped with titanium dioxide;

[0061] The material of the carrier base cloth 1 is one or more of cotton, hemp, silk or chemical fiber.

[0062] Based on the same inventive concept, an embodiment of the present application also provides a method for preparing the electromagnetic shielding composite film cloth, which includes the followin...

Embodiment 3

[0071] The same as Example 2, the difference lies in that the method for preparing the high molecular polymer layer is as follows: in an electrolyte with a concentration ratio of ionic liquid boron trifluoride ether to thiophene of 100:1, the carrier base is used as the cathode, and a constant potential of 1.1V is used to The titania-doped polythiophene layer obtained by polymerization under nitrogen protection atmosphere is prepared to obtain a high molecular polymer layer.

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Abstract

The invention provides an electromagnetic shielding composite membrane cloth and a preparation method. The electromagnetic shielding composite membrane cloth comprises a carrier base cloth, a conducting layer and an alloy layer; the conducting layer is located on one side face of the carrier base cloth, and the alloy layer is located on the side face, away from the carrier base cloth, of the conducting layer, wherein an Ag-Ce alloy layer is adopted as the alloy layer, and a graphene conducting layer is adopted as the conducting layer. The Ag-Ce alloy layer is adopted as the alloy layer of thecomposite membrane cloth, the alloy layer adopts silver as the conducting layer, the structure and the processing property of a silver-based material can be changed through cerium permeation, meanwhile electromagnetic properties such as the dielectric constant of silver are adjusted and controlled, the comprehensive property of the electromagnetic shielding composite membrane cloth is improved, and researches show that the comprehensive properties such as the mechanical property and the thermal property of the silver-based material can be improved through doping of Ce; and on the other hand, Ce can also play a positive role in the aspect of high-frequency short-wave shielding.

Description

technical field [0001] The invention relates to the technical field of electromagnetic shielding materials, in particular to an electromagnetic shielding composite film cloth and a preparation method thereof. Background technique [0002] In contemporary society, with the development of modern electronic equipment and wireless communication towards integration and high frequency, electromagnetic radiation pollution is known as one of the "four major pollutions" of the human living environment, which seriously interferes with the normal operation of other surrounding electronic equipment. endanger human health, etc. In modern warfare, military secrets can be stolen once attacked by electromagnetic weapons. Therefore, effective protection and management of electromagnetic radiation has become an important problem to be solved urgently. [0003] Electromagnetic shielding material is a measure to prevent electromagnetic waves from propagating in space or preventing electromagn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83D06M15/61D06M11/74D06M13/292C25D3/64C25D5/54C25D9/02H05K9/00
CPCD06M11/83D06M15/61D06M11/74D06M13/292C25D3/64C25D5/54C25D9/02H05K9/0084H05K9/0088
Inventor 安丛举
Owner JIANGXI LONGTAI NEW MATERIAL CO LTD