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A kind of anti-electromagnetic radiation waterproof and breathable film material and its preparation method and application

An electromagnetic radiation protection, waterproof and breathable technology, applied in metal material coating process, liquid chemical plating, coating and other directions, can solve problems such as affecting the growth of copper plating, unable to reach the binding force value, etc., and achieve easy large-scale industrial production. , Improve the activation effect, the method is simple to operate

Active Publication Date: 2021-06-04
东莞市富颖电子材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the extra Sn 2+ It will affect the growth of the subsequent copper plating layer, and the adsorption of porous expanded polytetrafluoroethylene to metal palladium belongs to physical adsorption. In the subsequent preparation process of the metal layer, the bonding effect between the organic substrate and the metal layer depends on The physical riveting effect often cannot achieve the ideal bonding force value

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] A preparation method of an electromagnetic radiation-proof waterproof and breathable film material, comprising the steps of:

[0025] (1) Plasma treatment of porous expanded polytetrafluoroethylene film to obtain hydrophilic porous expanded polytetrafluoroethylene film: first, the biaxially stretched porous expanded polytetrafluoroethylene film with a pore diameter of 80 to 100 μm was treated with acetone, Ultrasonic cleaning with methanol, then rinsing with deionized water, and vacuum drying at room temperature for 4 hours; then place the cleaned porous expanded polytetrafluoroethylene film in a room temperature plasma device for treatment, the atmosphere is air, the radio frequency power is 70W, and the treatment time is 5min;

[0026] (2) The operation process of assembling the active copolymer on the surface of the hydrophilic porous expanded polytetrafluoroethylene film is as follows: immerse 10g of the porous expanded polytetrafluoroethylene film after plasma trea...

Embodiment 2

[0039] A preparation method of an electromagnetic radiation-proof waterproof and breathable film material, comprising the steps of:

[0040] (1) Plasma treatment of porous expanded polytetrafluoroethylene film to obtain hydrophilic porous expanded polytetrafluoroethylene film: first, the biaxially stretched porous expanded polytetrafluoroethylene film with a pore diameter of 80 to 100 μm was treated with acetone, Ultrasonic cleaning with methanol, then rinsing with deionized water, and vacuum drying at room temperature for 4 hours; then place the cleaned porous expanded polytetrafluoroethylene film in a room temperature plasma device for treatment, the atmosphere is air, the radio frequency power is 100W, and the treatment time is 2min;

[0041] (2) The operation process of assembling the active copolymer on the surface of the hydrophilic porous expanded polytetrafluoroethylene film is as follows: immerse 15g of the porous expanded polytetrafluoroethylene film after plasma tre...

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PUM

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Abstract

The invention discloses a waterproof and air-permeable film material for preventing electromagnetic radiation, which comprises the following steps: firstly modifying the porous expanded polytetrafluoroethylene film by plasma treatment, then assembling a copolymer film with active end groups on its surface and curing , and then load active palladium chloride to the side chain of the active copolymer film by ion exchange, and finally perform electroless deposition on the surface-activated porous expanded tetrafluoroethylene film to obtain a copper-plated porous expanded polytetrafluoroethylene film. The preparation method of the invention is simple in operation, economical and environment-friendly, and is suitable for industrialized production. Moreover, the prepared porous expanded polytetrafluoroethylene film material has strong bonding force with the copper coating, the coating is uniform and the density is controllable, it can not only prevent electromagnetic radiation but also have waterproof and breathable functions, and the material of the present invention can be widely used in communication Radiation protection of equipment, industrial automation equipment, radio frequency and microwave medical equipment, military equipment, high voltage electrical appliances, and vehicles under harsh conditions.

Description

technical field [0001] The invention belongs to the technical field of new materials, and in particular relates to an anti-electromagnetic radiation waterproof and breathable film material and a preparation method and application thereof. Background technique [0002] Porous expanded polytetrafluoroethylene film has excellent properties such as chemical stability, electrical insulation, thermal stability, and low surface energy. The composite material prepared by surface electroless copper plating can not only effectively prevent electromagnetic radiation but also have Waterproof and breathable function, and because of the high strength of the film, it can be widely used in various aspects of civil and military facilities. [0003] The essence of electroless copper plating is to reduce copper ions through the reducing agent in the solution and deposit them on the surface of the plated parts. Electroless copper plating generally requires a small amount of catalyst, and the mo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08J9/40C08J9/36C08J5/18C23C18/40C23C18/30C08L27/18
CPCC08J5/18C08J9/36C08J9/40C08J9/405C08J2327/18C23C18/30C23C18/40
Inventor 冯林
Owner 东莞市富颖电子材料有限公司