Ferrous metal electromagnetic screen fabric and method for making same

A ferrous metal, electromagnetic shielding technology, applied in the fields of magnetic field/electric field shielding, metal material coating process, electrical components, etc., can solve the problems of heat absorption, poor heat dissipation, easy dirt, strong reflection, etc., to achieve good wear resistance The effect of excellent performance, electrical conductivity and high wearability

Inactive Publication Date: 2008-01-30
DONGHUA UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. After electroplating nickel on the fabric after electroless copper plating, the surface of the fabric is silvery white, easy to dirty, and the decoration is poor, especially in some special occasions, such as decorative black electrical appliances, in a darker environment , electrical cooling vents;
[0008] 2. After nickel plating, the surface color of the fabric is lighter, and the heat absorption and heat dissipation performance is poor;
[0009] 3. After electroplating nickel, the surface of the fabric shows a metallic luster, which is strongly reflective and easily damages the eyesight of the staff;
[0010] 4. After electroplating nickel, the corrosion resistance and abrasion resistance of the fabric are unsatisfactory
[0011] With the development of science and technology, due to the poor modification performance, light absorption performance, abrasion resistance and corrosion resistance of ordinary conductive cloth, it can no longer meet the requirements of the market.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Ferrous metal electromagnetic screen fabric and method for making same
  • Ferrous metal electromagnetic screen fabric and method for making same
  • Ferrous metal electromagnetic screen fabric and method for making same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] In this example, the copper-plated polyester cloth / 230T produced by Sanyuan Electronic Technology Co., Ltd. is used as the base material, and the steps are as follows:

[0041] The first step is preprocessing. Use 3moL / L chromic acid solution to degrade to remove oxides and dirt on the surface of fabric fibers after electroless copper plating;

[0042] The second step is to wash with water. Wash off the residual acid and heavy metal ions on the fabric with water;

[0043] The third step is electroplating. Using nickel anode, the following formula prepares electroplating black nickel solution:

[0044] Nickel anode

[0045] Nickel Sulfate NiSO 4 ·6H 2 O 135g / L

[0046] Ammonium molybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O 25g / L

[0047] Boric acid H 3 BO 3 25g / L

[0048] Sodium acetate CH 3 COONa·3H 2 O 20g / L

[0049] pH 3

[0050] Temperature 33°C

[0051] Cathode current 1~2A / dm 2

[0052] Plating time 600s

[0053] Through the above step...

Embodiment 2

[0058] In this example, the copper-plated nylon cloth produced by Sanyuan Electronic Technology Co., Ltd. is used as the base material, and the steps are as follows:

[0059] The first step is preprocessing. Use 3moL / L chromic acid solution to degrade to remove oxides and dirt on the surface of fabric fibers after electroless copper plating;

[0060] The second step is to wash with water. Wash off the residual acid and heavy metal ions on the fabric with water;

[0061] The third step is electroplating. Using nickel anode, the following formula prepares electroplating black nickel solution:

[0062] Nickel anode

[0063] Nickel Sulfate NiSO 4 ·6H 2 O 70g / L

[0064] Ammonium Nickel Sulfate NiSO 4 ·(NH 4 ) 2 SO 4 ·6H 2 O 25g / L

[0065] Boric acid H 3 BO 3 25g / L

[0066] Zinc sulfate ZnSO 4 20g / L

[0067] Ammonium thiocyanate NH 4 CNS 20g / L

[0068] pH 4

[0069] Temperature 35°C

[0070] Cathode current 0.5~1A / dm ...

Embodiment 3

[0077] In this example, the copper-plated mesh cloth MF36 produced by Sanyuan Electronic Technology Co., Ltd. is used as the base material, and the steps are as follows:

[0078] The first step is preprocessing. Use 3moL / L chromic acid solution to degrade to remove oxides and dirt on the surface of fabric fibers after electroless copper plating;

[0079] The second step is to wash with water. Wash off the residual acid and heavy metal ions on the fabric with water;

[0080] The third step is electroplating. Using nickel anode, the following formula prepares electroplating black nickel solution:

[0081] Nickel anode

[0082] Nickel Sulfate NiSO 4 ·6H 2 O 135g / L

[0083] Ammonium molybdate (NH 4 ) 6 Mo 7 o 24 4H 2 O 25g / L

[0084] Boric acid H 3 BO 3 25g / L

[0085] Sodium acetate CH 3 COONa·3H 2 O 20g / L

[0086] pH 3

[0087] Temperature 33°C

[0088] Cathode current 1~2A / dm 2

[0089] Plating time 600s

[0090] Through the above steps, ...

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Abstract

The invention relates to a black metallization electromagnet shield textile and a preparation method thereof. The preparation method comprises: (1) copper plated fiber textile is soaked in 3 mol / L chromic acid solution, then washed by clean water; (2) black nickel solution is prepared, pH value is regulated to 2 to 6, nickel anode is adopted under the temperature of 10 to 50 DEG C, the chemically plated copper textile is immersed and plated until the replacement reaction is completed, and a conductive fibre textile plated with black metallic nickel is obtained; (3) the plated fiber textile is washed by water and coated by protection resin, then dried. The textile has the advantages of excellent conduction, good wear resistant property, decay resistance and light absorption property and has functions of decoration, protection and light absorption, etc; meanwhile the textile has higher serviceability, which can be used in the areas such as conductive rubber bell, conductive machine weaving, conductive non woven fabric, shielding liner, etc.

Description

technical field [0001] The invention belongs to an electromagnetic wave shielding fabric and a preparation method thereof, in particular to a black metallized electromagnetic shielding fabric and a preparation method thereof. Background technique [0002] At present, there are more and more researches on electromagnetic shielding fabrics at home and abroad. Most researchers focus on improving the conductivity of the fabric, and the prepared samples have good shielding performance at 10mHz-1GHz. [0003] Common electromagnetic shielding fabrics are widely used in computers, communication cabinets, and electromagnetic compatibility materials for various household appliances, such as shielding bead, flexible cable conductive cloth, conductive gasket tape, etc. It is easy to use, light in weight, and excellent in cost performance. It is more and more recognized and adopted by people in electromagnetic compatibility design. There are many researches in this area at home and abr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M11/83C23C28/00C23C18/00C25D3/12H05K9/00
Inventor 王炜陆邵闻李成新孙宾朱美芳田海玉
Owner DONGHUA UNIV
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