Silver plating solution for chemical silvering of polyester fabrics, silver plating method of silver plating solution and anti-tarnishing protection method of plating layer

Abstract

The invention relates to a silver plating solution for chemical silvering of polyester fabrics, a silver plating method of the silver plating solution and an anti-tarnishing protection method of a plating layer. The silver plating solution is divided into a silver salt solution and a reducing agent solution, wherein constituents and concentrations of the silver salt solution are as follows: 5 to 10g / L of AgNO3, 55 to 65mL / L of ammonia water, 15 to 25mL / L of ethidene diamine, 5 to 10g / L of sodium thiosulfate and 5 to 10g / L of potassium hydroxide; and the constituents and the concentrations of the reducing agent solution are as follows: 5 to 10g / L of glucose, 1 to 5g / L of potassium sodium tartrate, 35 to 45mL / L of ethanol, and 70 to 80mg / L of polyethylene glycol 1000. The polyester fabrics with the plating layer prepared by the invention is durable in conductivity, excellent in anti-electromagnetic shielding capacity, and good in anti-tarnishing property, thereby being applied to preparation of conductive foam, conductive adhesive tapes, conductive hasps, shielding clothes and shielding caps and the like.

Description

technical field

[0001] The invention relates to a silver plating solution for chemical silver plating of polyester fabrics, a silver plating method thereof and an anti-discoloration protection method of the plating layer. Background technique

[0002] Electromagnetic radiation pollution has been recognized as the fourth largest public hazard after air, water quality, and noise pollution. The research and development of electromagnetic shielding materials has great practical significance for social life and national defense construction. Compared with electromagnetic shielding materials such as films and plates, electromagnetic shielding fabrics are more widely used. They can not only be processed into conductive tapes and conductive foams for electronic products and devices, but also can be made into clothing, packaging bags, decorative materials, etc. .

[0003] Among them, electroless silver-plated fabric has excellent electrical conductivity and electromagnetic shielding...

Examples

Embodiment 1

[0037] The base material of embodiment is polyethylene terephthalate (PET) polyester fabric, and concrete implementation steps are as follows:

[0038] The first step, washing and degreasing, washing powder 2 g / L, temperature 80 O C, time 30 minutes;

[0039] The second step, roughening, put the washed and degreased polyester fabric into the roughening solution for roughening. The composition of the roughening solution is: sodium hydroxide 200 g / L, temperature 80 O C, time 30 minutes;

[0040] The third step, sensitization, immerses the roughened polyester fabric in the sensitization solution, 20 g / L SnCl 2 , 20 mL / L concentrated HCl, temperature 30 O C. Rinse slowly with running water for 10 minutes;

[0041] The fourth step, activation, immerse the sensitized polyester fabric in the activation solution, 0.3 g / L PdCl 2 , 4 mL / L concentrated HCl, temperature 30 O C. Rinse slowly with running water for 10 minutes;

[0042] The fifth step, electroless silver plating after...

technical field

[0001] The invention relates to a silver plating solution for chemical silver plating of polyester fabrics, a silver plating method thereof and an anti-discoloration protection method of the plating layer. Background technique

[0002] Electromagnetic radiation pollution has been recognized as the fourth largest public hazard after air, water quality, and noise pollution. The research and development of electromagnetic shielding materials has great practical significance for social life and national defense construction. Compared with electromagnetic shielding materials such as films and plates, electromagnetic shielding fabrics are more widely used. They can not only be processed into conductive tapes and conductive foams for electronic products and devices, but also can be made into clothing, packaging bags, decorative materials, etc. .

[0003] Among them, electroless silver-plated fabric has excellent electrical conductivity and electromagnetic shielding...

Examples

Embodiment 1

[0037] The base material of embodiment is polyethylene terephthalate (PET) polyester fabric, and concrete implementation steps are as follows:

[0038] The first step, washing and degreasing, washing powder 2 g / L, temperature 80 O C, time 30 minutes;

[0039] The second step, roughening, put the washed and degreased polyester fabric into the roughening solution for roughening. The composition of the roughening solution is: sodium hydroxide 200 g / L, temperature 80 O C, time 30 minutes;

[0040] The third step, sensitization, immerses the roughened polyester fabric in the sensitization solution, 20 g / L SnCl 2 , 20 mL / L concentrated HCl, temperature 30 O C. Rinse slowly with running water for 10 minutes;

[0041] The fourth step, activation, immerse the sensitized polyester fabric in the activation solution, 0.3 g / L PdCl 2 , 4 mL / L concentrated HCl, temperature 30 O C. Rinse slowly with running water for 10 minutes;

[0042] The fifth step, electroless silver plating after...

Images