Conductive fibers and preparation method

A conductive fiber and fiber technology, which is applied in fiber type, fiber treatment, textiles and papermaking, etc., can solve the problems of high price, low efficiency and high production cost of silver-plated fiber, and achieve stable properties, long process and high bonding fastness high effect

Inactive Publication Date: 2009-11-25
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But silver is a precious metal, so the price of silver-plated fiber is expensive
At present, chemical fiber silver plating methods mostly adopt chemical silver plating method, and the production method adopts intermittent processing method, which has high production cost and low efficiency.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0034] The preparation method comprises the following specific steps:

[0035] The first step, chemical fiber filament cleaning and degreasing agent;

[0036] In the second step, the chemical fiber filaments are arranged neatly and wound into a shaft;

[0037] The third step, the activation of chemical fiber filaments, adopts the method of padding activation solution to form a layer of resin layer containing precious metals on the surface of chemical fiber filaments, and dry in an oven;

[0038] The fourth step, electroless copper plating, copper plating thickness 0.1 ~ 15μm;

[0039] The fifth step is electroplating silver, the thickness of silver plating is 0.05-4μm;

[0040] The sixth step is to apply a protective layer and dry;

[0041] In the seventh step, the conductive filament is wound into a bobbin or cut into short fibers.

[0042] The chemical fiber filament used in the first step is one of polyester, polyamide, acrylic and vinylon filaments.

[0043] The activ...

Embodiment 1

[0065] The first step is to select nylon 66 filaments and wash them with detergent solution to remove oil and dirt;

[0066] In the second step, the chemical fiber filaments are arranged neatly and wound into a shaft;

[0067] The third step is the activation of chemical fiber filaments. A layer of resin layer containing precious metals is formed on the surface of fiber filaments by padding activation solution. The activation solution contains 0.2% silver nanoparticles, 0.3% polypyrrolidone, 3% polyurethane, 0.01 For the dispersion system of %JFC, the temperature of the activation solution is 30°C, the excess rate is 70%, and it is dried in an oven at a temperature of 170°C and a drying time of 10 minutes;

[0068] The fourth step, electroless copper plating, using sodium hypophosphite as a reducing agent, pH 9, bath temperature 65°C, immersion plating time 5 minutes, the bath contains:

[0069] Copper sulfate 10g / L

[0070] Nickel sulfate 0.5g / L

[0071] Citric acid 20g / L

...

Embodiment 2

[0084] The first step is to select polyester filaments and wash them with detergent and alkaline solution to remove oil and dirt;

[0085] In the second step, the chemical fiber filaments are arranged neatly and wound into a shaft;

[0086] The third step is the activation of chemical fiber filaments. A layer of resin layer containing precious metals is formed on the surface of fiber filaments by padding activation solution. The activation solution contains 0.2% palladium nanoparticles, 0.3% polyvinyl alcohol, and 2.5% acrylate , 0.01% JFC dispersion system, the temperature of the activation solution is 40°C, the excess rate is 65%, it is dried in an oven, the drying rate is 190°C, and the drying time is 6 minutes;

[0087] The fourth step is electroless copper plating, using formaldehyde as a reducing agent, pH 12.5, bath temperature 45°C, immersion plating time 2 minutes, copper plating bath contains:

[0088] Copper sulfate 15g / L

[0089] Sodium Potassium Tartrate 15g / L ...

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Abstract

Conductive fibers and preparation method thereof are characterized in that the fibers are used for carrying out chemical copper plating re-electrosilvering in continuous advancing manner, that is, the fibers are trimly arranged and coiled into shafts, and strands are unwinded so that silver covered copper conductive fibers are prepared by each working procedure of activation, chemical plating, electroplating, and the like; in the invention, chemical fiber continuous yarns are used for carrying out chemical copper plating re-electrosilvering in continuous advancing manner, thereby greatly reducing the production cost and improving the production efficiency on the premise of guaranteeing the conductive performance of fibers.

Description

technical field [0001] The invention relates to a method for continuously plating copper and silver on the surface of chemical fibers, which belongs to the preparation technology of low-resistance conductive fibers. Background technique [0002] Silver-plated chemical fibers have excellent conductivity and antibacterial properties, and have been used in the production of functional textile fabrics such as antibacterial and conductive. But silver is a precious metal, so the price of silver-plated fiber is expensive. At present, chemical fiber silver plating methods mostly adopt chemical silver plating method, and the production method adopts intermittent processing method, which has high production cost and low efficiency. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the prior art, and provide a method for preparing conductive fibers that can effectively reduce costs and improve production efficiency under the p...

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): D06M11/83D06M101/32D06M101/34D06M101/28
Inventor 陈文兴姚玉元吕汪洋
Owner ZHEJIANG SCI-TECH UNIV
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