Activation method before chemical plating based on photocuring technique

An activation method and light-curing technology, which are applied in fiber types, textiles and papermaking, fiber treatment, etc., can solve the problems of weak binding force between the catalytic center and the substrate, poor palladium-free catalytic activity, and unsuitable for industrial production. Excellent activation effect, easy industrial production, and reduced activation cost

Inactive Publication Date: 2017-09-01
SAINTYEAR HLDG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although there are various activation processes for non-metallic substrates, there are still various problems, such as complex processes, weak binding force between the catalytic center and the substrate, poor catalytic activity without palladium, unsuitable for industrial production, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A pre-electroless plating activation method based on light curing technology, the activation method comprising: the preparation of water-based UV activation solution: water-based polyurethane acrylate 87g, photoinitiator 2-hydroxyl-2-methyl-1-phenyl- 1-3g of acetone, 9.95g of water, 0.05g of polymerization inhibitor, and 4mg of palladium chloride were magnetically stirred for one hour at room temperature and protected from light, and left to stand until defoaming.

[0024] Immerse the fabric in the UV activation solution, and treat it with electromagnetic stirring for 30 minutes at room temperature in the dark, then dry it at 50°C, and cure it for 2 minutes under the condition that the light source is a mercury lamp, and the distance between the light source and the fabric is 2cm.

Embodiment 2

[0026] A pre-electroless plating activation method based on light curing technology, the activation method comprising: the preparation of water-based UV activation solution: water-based polyurethane acrylate 50g, water-based polyester acrylate 30g, photoinitiator Irgacure 500 4g, water 15.95g , 0.03 g of polymerization inhibitor, 0.02 g of wetting agent, and 3 mg of chloroplatinic acid were magnetically stirred for 40 minutes at room temperature and protected from light, and left to stand until defoaming.

[0027] Soak the fabric in the UV activation solution for 10 minutes at a padding pressure of 4kg / cm 2 In the case of double dipping and two rolling, the excess rate is 85%, and then it is dried at 40°C, and cured for 30 seconds under the condition that the light source is a metal halide lamp, and the distance between the light source and the fabric is 3cm.

Embodiment 3

[0029] A pre-electroless plating activation method based on light curing technology, the activation method comprising: the preparation of water-based UV activation solution: water-based polyurethane acrylate 70g, water-based epoxy acrylate 15g, photoinitiator Irgacure 500 8g, water 6.95g , 0.04 g of polymerization inhibitor, 0.01 g of wetting agent, 1 mg of chloroplatinic acid, and 2 mg of palladium chloride, stirred magnetically for 50 minutes at room temperature and protected from light, and stood until defoaming.

[0030] Use a wire bar coater to scrape the UV activation solution on the surface of the fabric, dry it at 60°C, and cure it for 30 seconds under the condition of a mercury lamp as the light source, and 30 seconds under the condition of a metal halide lamp. The distance between the light source and the fabric is 2cm.

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PUM

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Abstract

The invention relates to an activation method before chemical plating based on a photocuring technique. The activation method comprises the following steps: (1) preparing an aqueous photocuring activation liquid; (2) settling the aqueous photocuring activation liquid on a fabric, drying, and performing ultraviolet photocuring. In the activation process, a photocuring technique is adopted to anchor precious metal ions on the surface of the fabric, the operation is simple, green and environment-friendly, the binding fastness of an activated layer and base cloth is improved, meanwhile the amount of the precious metal salts is reduced, and the production cost of the activation process is reduced. The activation method can be applied to activiation treatment before chemical plating of various fabrics and is wide in application range, excellent in activation effect and easy in industrial production.

Description

technical field [0001] The invention relates to the technical field of textile electroless plating activation technology, in particular to a pre-electroless plating activation method based on light curing technology. Background technique [0002] The electroless plating method is the most commonly used preparation method for non-metallic surface metallization. It uses a reducing agent to autocatalyze the reduction deposition on the surface of the activated substrate to obtain a metal coating. Therefore, the prerequisite for electroless plating is that the surface of the substrate must have catalytic activity. For non-metallic surfaces (plastics, fabrics, rubber, etc.), active centers that can initiate electroless plating are required on the surface modification before electroless plating. This process is called activation, which is essential to form a uniform and continuous coating. [0003] The traditional activation process generally uses SnCl 2 Sensitization, PdCl 2 Act...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/564D06M15/263D06M15/273D06M15/51D06M11/28D06M11/83D06M101/06D06M101/12D06M101/34D06M101/32D06M101/28
CPCD06M15/564D06M11/28D06M11/83D06M15/263D06M15/273D06M15/51D06M2101/06D06M2101/12D06M2101/28D06M2101/32D06M2101/34
Inventor 马跃辉王炜蒋志康
Owner SAINTYEAR HLDG GROUP
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