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Steady multitime supplementary fiber chemical silver coating method

A chemical silver plating and fiber technology, applied in liquid chemical plating, metal material coating process, coating, etc., can solve the problems of poor stability and limit the application of chemical silver plating, and achieve improved stability, obvious economic benefits and Social benefit, cost reduction effect

Inactive Publication Date: 2007-08-08
吕琳 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the current electroless silver plating method has poor stability, and the plating solution will spontaneously decompose after being used once, which limits the application of electroless silver plating. A stable and repeatedly usable chemical silver plating method has not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1: Electroless silver plating of nylon filament

[0030] Degreasing: Sodium hydroxide 50g / L, OP emulsifier (fatty alcohol polyoxyethylene ether): 20g / L, Sodium carbonate: 10g / L, soak for 10 minutes at 60°C, remove the fiber on the surface Clean the degreasing solution, and put the cleaned fiber into the sensitizing solution;

[0031] Sensitization: stannous chloride: 50 g / liter, hydrochloric acid: 60 ml / liter; soak at 30 degrees for 3 minutes, after taking it out, clean the remaining sensitizer solution, divide the sensitized fiber into two parts, one part Put it into the activation solution for activation, the other part is not activated and directly electroless silver plating;

[0032] Activation: silver nitrate: 0.5 g / l, disodium edetate: 0.1 g / l, adjust with ammonia to make the solution clear and transparent, put the sensitized fiber into the activation solution, and soak for 10 minutes at 15 degrees. Clean the remaining activation solution after taking it out; ...

Embodiment 2

[0035] Example 2: Electroless silver plating on polyester fabric

[0036] Degreasing: Sodium hydroxide 50g / L, OP emulsifier: 20g / L, Sodium carbonate: 10g / L, soak for 10 minutes at 50~60°C, clean the remaining degreasing solution on the surface after the fabric is taken out. Put the cleaned cloth into the sensitizing solution;

[0037] Coarse: Sodium hydroxide: 200 g / liter, propylene glycol: 150 ml / liter, soak at 90 degrees for 30 minutes;

[0038] Sensitization: stannous chloride: 40 g / l, hydrochloric acid: 50 ml / l; soak at 20 degrees for 4 minutes, after taking it out, clean the remaining sensitizer solution; divide the sensitized cloth into two parts, one part Put in the activation solution to activate, and the other part is not activated directly electroless silver plating;

[0039] Activation: silver nitrate: 2 g / l, disodium edetate: 0.5 g / l, adjust with ammonia water until the solution is clear and transparent, put the sensitized cloth into the activation solution, soak for 3...

Embodiment 3

[0042] Example 3: Chemical silver plating of acrylic staple fiber

[0043] Degreasing: Sodium hydroxide 40 g / L, OP emulsifier: 25 g / L, Sodium carbonate: 10 g / L, soak for 10 minutes at 50 degrees, after the fabric is taken out, clean the remaining degreasing solution on the surface and clean it Put clean short fibers into the sensitizing solution;

[0044] Coarse: Ammonium persulfate: 200 g / liter, sulfuric acid: 300 ml / liter, soak for 6 minutes at 25 degrees;

[0045] Sensitization: stannous chloride: 30 g / l, hydrochloric acid: 30 ml / l; soak for 3 minutes at 15 degrees, and clean the remaining sensitization solution after taking it out;

[0046] Electroless silver plating: Weigh 15 g / L silver nitrate, dissolve it with appropriate amount of distilled water, weigh 2 g / L disodium edetate, dissolve in distilled water, add silver nitrate solution to EDTA with stirring In the sodium solution, then adjust the solution to clear with ammonia water, add 6 ml / liter of formaldehyde solution, a...

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PUM

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Abstract

The invention discloses a chemical silver-plating method of fiber, which comprises the following steps: 1. deoiling fiber; coarsing; sensitizing; 2. plating silver; 3. supplementing silver-plating solution to adjust and use again.

Description

1. Technical Field [0001] The invention relates to a fiber chemical silver plating method, belonging to the technical field of chemical silver plating methods. 2. Background technology [0002] Silver has good electrical conductivity, thermal conductivity, ductility and reflectivity, and has the functions of sterilization and water purification. The silver layer is bright and uniform and has good decorative properties. Therefore, it is widely used in the fields of printed circuits, electronics industry, optics and decoration. . [0003] However, the current electroless silver plating method is poor in stability, and the plating solution decomposes spontaneously after one use, which limits the application of electroless silver plating. There is no report on an electroless silver plating method that is stable and can be used multiple times. 3. Summary of the invention [0004] The purpose of the present invention is to solve the above-mentioned shortcomings of the prior art and pr...

Claims

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Application Information

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IPC IPC(8): C23C18/00C23C18/18C23C18/44
Inventor 吕琳候红丽
Owner 吕琳
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