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Preparation method of electromagnetic shielding material, electromagnetic shielding material and applications thereof

An electromagnetic shielding material, electroplating nickel technology, applied in the preparation of electromagnetic shielding materials, the field of electromagnetic shielding materials, can solve the problems of difficult to guarantee product quality, high production cost of chemical plating, can not meet the needs of the market, etc., to improve the quality, use range Extensive, overcoming the effect of wasting water resources and difficult to treat wastewater

Inactive Publication Date: 2013-05-22
TIANNUO PHOTOELECTRIC MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the production cost of electroless plating is high, and the wastewater generated in the production process is seriously polluted; although electroplating reduces the production cost, it is difficult to control the operation and ensure product quality due to the instability of the substrate itself; the price of equipment used in sputter plating Expensive, difficult to produce on a large scale, unable to adapt to market needs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0032] The electromagnetic shielding material prepared according to the preparation method of the above-mentioned electromagnetic shielding material includes a whole roll of fabric, and is characterized in that: the whole roll of fabric is plated with three layers of metal coatings, and the inner metal is nickel or copper or nickel-chromium alloy coating, The thickness of the inner metal coating is 0.005-0.5 μm; the middle layer metal is copper coating, the thickness of the copper coating is 0.5-10 μm; the outer metal is nickel or nickel-cobalt alloy or nickel-iron alloy coating, the nickel or nickel-cobalt alloy or nickel The thickness of the iron alloy coating is 0.1-5 μm.

[0033] According to the use of the electromagnetic shielding material prepared by the preparation method of the electromagnetic shielding material above, the electromagnetic shielding material can be widely used in industries such as electronics, communications, textiles and clothing, construction, medica...

Embodiment 1

[0035] (1) After the whole roll of fabric is cut to a certain width, it is transferred to an oven for drying treatment. The temperature of the oven is set at 50-180°C, and the drying time is 10-100 hours; (2) The fabric is pretreated, and the pretreatment method is The vacuum physical gas phase method removes the impurities adsorbed on the upper surface of the fabric, and the surface modification treatment of the fabric is carried out by the vacuum physical gas phase method; (3) the pretreated fabric is filled with argon gas in a vacuum state, and the magnetic Controlled sputtering equipment sputters nickel, the vacuum degree is controlled at 1*10 -3 ~1*10 0 Pa, the forward speed of the fabric is 0.5-7m / min, and the thickness of the metal layer attached to the fabric is controlled at 0.005-0.5μm; (4) The copper pyrophosphate copper plating process is used to electroplate the fabric of vacuum sputtered nickel metal, and the copper The thickness of the coating is 0.5-10μm; copp...

Embodiment 2

[0038] (1) After the whole roll of fabric is cut to a certain width, it is transferred to an oven for drying treatment. The temperature of the oven is set at 50-180°C, and the drying time is 10-100 hours; (2) The fabric is pretreated, and the pretreatment method is The vacuum physical gas phase method removes the impurities adsorbed on the upper surface of the fabric, and the surface modification treatment of the fabric is carried out by the vacuum physical gas phase method; (3) the pretreated fabric is filled with argon gas in a vacuum state, and the magnetic Controlled sputtering equipment sputters copper, the vacuum degree is controlled at 1*10 -3 ~1*10 0 Pa, the forward speed of the fabric is 0.5-7m / min, and the thickness of the metal layer attached to the fabric is controlled at 0.005-0.5μm; (4) The copper pyrophosphate copper plating process is used for electroplating copper plating on the fabric of vacuum sputtered metal copper, and the copper The thickness of the coatin...

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Abstract

The invention discloses a preparation method of an electromagnetic shielding material, an electromagnetic shielding material and applications thereof. The method comprises the following steps: carrying out pretreatment and drying treatment on a fabric, and sputtering nickel or copper or nickel chromium alloy metals with a certain thickness on the fabric subjected to pretreatment by using a magnetron sputtering device under vacuum conditions; carrying out electro-coppering on the fabric by using a copper pyrophosphate coppering process, and simultaneously carrying out multi-stage water washing, drying treatment and winding on the fabric subjected to coppering; and carrying out electro-nickelling, nickel-cobalt alloying or ferro-nickel alloying on the fabric, and then carrying out multi-stage water washing, drying treatment and winding on the fabric, thereby completing the preparation of an electromagnetic shielding material. According to the scheme, a method of combining magnetron sputtering with electroplating is adopted, so that the problems that independent chemical plating is high in production cost and wastes water and wastewater caused by chemical plating is difficult to treat are solved; the method can carry out continuous production, thereby being more suitable for mass production. An electromagnetic shielding material prepared by using the method disclosed by the invention can be widely applied to the industries such as electronics, communications, textile and garment, construction, medical equipment, military projects, aerospace and the like.

Description

technical field [0001] The invention relates to the technical field of fabric shielding materials, in particular to a preparation method of an electromagnetic shielding material, an electromagnetic shielding material and applications thereof. Background technique [0002] With the development of modern technology and the improvement of people's living standards, high-tech electrical products are favored by more and more people. While mobile phones, computers, and induction cookers bring convenience to people, the harm of electromagnetic radiation to people is also increasing. bigger. In order to reduce the harm of electromagnetic radiation to people, the demand for electromagnetic shielding materials is also increasing. Currently, the techniques for preparing electromagnetic shielding materials on the market mainly include electroless plating, electroplating, and sputtering plating. Among them, the production cost of electroless plating is high, and the wastewater generate...

Claims

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Application Information

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IPC IPC(8): D06M23/00D06M10/00D06M11/83D06L1/16
Inventor 李建国刘世合李国豪张健
Owner TIANNUO PHOTOELECTRIC MATERIAL
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