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A kind of method of cotton fabric modification and electroless copper plating

A technology of electroless copper plating and cotton fabric, applied in liquid chemical plating, metal material coating process, coating and other directions, can solve the problems of poor electrical conductivity, adhesion performance, poor bonding force, high price, and achieve uniform thickness, Good UV resistance, small volume resistivity and surface area resistivity

Active Publication Date: 2021-03-30
YANCHENG INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the early activation process, colloidal palladium and ionic palladium activation solutions were used more, and the catalytic activity was very good, but the adhesion and binding force were poor, and the price was high compared with silver. Therefore, the good catalytic activity of silver and adhesion properties make silver a more widely used activator in modern times
At present, in the chemical copper plating process of cotton fabrics, there are defects of poor electrical conductivity.

Method used

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  • A kind of method of cotton fabric modification and electroless copper plating
  • A kind of method of cotton fabric modification and electroless copper plating
  • A kind of method of cotton fabric modification and electroless copper plating

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] (1) Epichlorohydrin treatment

[0023] Put 1g of bleached cotton fabric into a mixed solution of 6g / L NaOH and 20g / L epichlorohydrin, the liquor ratio is 42:1, put it into a round-bottomed conical flask, and set the temperature of the small sample dyeing machine with constant temperature oscillation Set it at 60°C, shake it for 2 hours, and dry it at 60°C after the reaction is complete.

[0024] (2) Phytic acid treatment

[0025] Put the cloth treated with epichlorohydrin into 100mL mixture of 1.43mL phytic acid, 7mL ammonia water and distilled water, put it into the dyeing sample machine, set the temperature to 50°C, and react for 2h. °C for drying.

[0026] (3) Silver nitrate treatment

[0027] First prepare the silver nitrate stock solution: weigh 0.1g of silver nitrate, put it into a 250mL volumetric flask, dissolve it with distilled water, make it up to volume, and prepare a 1g / L silver nitrate solution, and put it into a brown volumetric flask for protection fr...

Embodiment 2

[0034] (1) Effect of modifier phytic acid content on cotton fabric electroless plating

[0035] The pre-treatment is still to put the bleached cloth into a mixed solution of 6g / L NaOH and 20g / L epichlorohydrin, take 1g of cotton fabric, weigh 0.252g of NaOH and 0.84g of epichlorohydrin, add In a round bottom flask, add 42 mL of distilled water. Put it into a small dyeing machine and react at 60°C for 2 hours.

[0036] Then use phytic acid as the modified solvent, according to the concentration of 0.715mL, 1.43mL, 2.86mL, 4.29mL, 5.72mL of phytic acid as the reaction gradient, 100mL of distilled water and 7mL of ammonia water as the constant amount, put it into the round bottom The flask was reacted at 70°C for 2 hours. Then immerse in a beaker of 100mL solution diluted with 10mL silver nitrate stock solution prepared for 5min, and then wash away excess unadsorbed silver nitrate on the surface with distilled water. After drying, put it into the plating solution and react at ...

Embodiment 3

[0047] Effect of silver nitrate concentration in electroless copper plating on the conductivity of cotton fabric:

[0048] The epichlorohydrin treatment of cotton fabrics remains unchanged, the amount of phytic acid used is 1.43mL, and then the content of silver nitrate is changed, with 5mL, 10mL, 15mL, 20mL, 25mL, 30mL, 35mL of silver nitrate as the concentration gradient, the silver nitrate solution Dilute to 100mL, soak the cloth for 5min, gently wash and dry, put it in the plating solution for 2 hours at 35℃ after drying.

[0049] The resistance measured by different concentrations of silver nitrate is shown in Table 3.

[0050] Table 3 Resistance measured by different concentrations of silver nitrate

[0051]

[0052]

[0053] It can be seen from the table that the concentration of silver nitrate has a great influence on the resistance value of the electroless copper-plated cotton fabric, and the maximum surface area specific resistance reaches 9.0*10 8 Ω, and the...

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Abstract

The invention discloses a cotton fabric modification and electroless copper plating method. The method comprises the following steps that 1g of bleached cotton fabric is taken and put into a mixed aqueous solution prepared by NaOH and epoxy chloropropane, the cotton fabric and the solution are subjected to oscillating reacting in a constant-temperature oscillating dyeing hand sample machine at 60DEG C for 2 hours, after drying is conducted at 60 DEG C, the cotton fabric is put into 100 mL of a mixed solution which is prepared from 1.43-4.29 mL of phytic acid, 7 mL of ammonia water and distilled water, the cotton fabric and the mixed solution are put into the dyeing hand sample machine for reacting at 50-60 DEG C for 2-3.5 hours, and drying at 60 DEG C is conducted; 1g / L of a silver nitrate solution is prepared, 10-15 mL of the silver nitrate solution is transferred by using a transfer pipette to prepare a 100 mL solution, and the modified pretreated cotton fabric is soaked in the prepared 100 mL silver nitrate solution for 5 minutes, then taken out, and dried at 60 DEG C; and the cotton fabric treated with the silver nitrate is put into an electroless copper plating solution, thetemperature of the constant-temperature oscillating dyeing hand sample machine is adjusted to be 45-50 DEG C, and after reacting for 3-4 hours, the cotton fabric is cleaned, and dried at 60 DEG C. According to the method, the copper plating effect is good, the good conductive performance is achieved, and meanwhile, the cotton fabric has good ultraviolet resistance.

Description

technical field [0001] The invention relates to the textile field, in particular to a method for modifying cotton fabric and electroless copper plating. Background technique [0002] Electroless copper plating is to use metal copper ions to form a thin metal coating on the fabric by chemical methods, which can improve the wear resistance and electrical conductivity of the fabric and the service life. Compared with electroplating copper, the method is simpler and less polluting. [0003] Since cotton fabrics do not have electrical conductivity and catalytic activity, we can only impart metal ions on the fabrics. Generally, the electroless copper plating steps are degreasing, roughening, activation and electroless plating. Advantages of electroless copper plating: simple operation, no need for electricity, high stability, wide application range of working temperature and solution concentration, at the same time, the copper layer is dense and has excellent bonding force. In th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C18/30C23C18/40
CPCC23C18/30C23C18/405
Inventor 祁珍明张成王矿李梦玥王春霞高大伟马志鹏
Owner YANCHENG INST OF TECH