Preparing method for silver-plated fibers

Abstract

The invention relates to a preparation method of silver-plated fiber, which comprises the following steps: the first step: chemical modification treatment on the surface of the substrate to increase the active groups and roughness on the surface of the substrate fiber; the second step: activation treatment, Active points are directly introduced into the surface of the substrate fiber; the third step: electroless silver plating treatment, a layer of silver is plated on the surface of the substrate fiber. The silver-plated polyester fiber prepared by the invention has good electrical conductivity and excellent antibacterial property, retains the characteristics of the original fiber, has soft hand feeling, and the plating layer is not easy to peel off.

Description

technical field

[0001] The present invention relates to a kind of preparation method of material, more specifically, it relates to a kind of preparation method of silver-plated fiber. Background technique

[0002] It is well known that silver has the best electrical conductivity among all metals. In addition, metallic silver also has an excellent broad-spectrum antibacterial effect, and its chemical properties are stable and harmless to the human body. In view of these characteristics of metallic silver, silver-plated fibers are widely used in daily life, for example, electromagnetic shielding fabrics, antibacterial and deodorant fabrics, etc.

[0003] The production process of silver-plated fiber can be roughly divided into chemical plating and vacuum coating. Vacuum coating is not suitable for large-scale industrial production because it requires special equipment. In the electroless plating process, in order to ensure that the silver layer can be plated on the surface o...

Examples

Embodiment 1

[0021] A kind of preparation method concrete process of silver-plated fiber is as follows:

[0022] In the first step, the polyester fiber is immersed in 5g / L sodium hydroxide aqueous solution, stirred and reacted at 130°C for 60 minutes, taken out, and rinsed with deionized water.

[0023] In the second step, immerse the fiber obtained in the first step into 10 g / L tin dichloride aqueous solution, take it out after soaking at room temperature for 2 minutes, and rinse it with deionized water.

[0024] In the third step, immerse the polyester fiber gained in the second step activation treatment in the silver salt solution, the composition of the silver salt solution is: silver nitrate 3g / L, ammoniacal liquor 3.5mL / L, formalin 1.3mL / L; 20- After stirring and reacting at 30°C for 180 minutes, take it out and rinse it with hot water.

[0025] Tests show that this silver-plated fiber has excellent antibacterial effect, and the antibacterial rate against Staphylococcus aureus is gr...

Embodiment 2

[0027] In the first step, the polyester fiber is immersed in 10g / L potassium hydroxide aqueous solution, stirred and reacted at 120°C for 90 minutes, taken out, and rinsed with deionized water.

[0028] In the second step, the fibers treated in the first step are immersed in 10 g / L tin dichloride aqueous solution, soaked at room temperature for 2 minutes, taken out, and rinsed with deionized water.

[0029] The 3rd step, the terylene fiber that second step activation process is immersed in the silver salt solution, the composition of this silver salt solution is: silver nitrate 7.5g / L, ammoniacal liquor 8.7mL / L, formalin 3mL / L; 20 Take it out after stirring and reacting at -30°C for 180 minutes, and rinse it with hot water.

[0030] Tests show that this silver-plated fiber has excellent antibacterial effect, and the antibacterial rate against Staphylococcus aureus is greater than 99.9%. It retains the characteristics of the original fiber, feels soft, and the plating layer is ...

technical field

[0001] The present invention relates to a kind of preparation method of material, more specifically, it relates to a kind of preparation method of silver-plated fiber. Background technique

[0002] It is well known that silver has the best electrical conductivity among all metals. In addition, metallic silver also has an excellent broad-spectrum antibacterial effect, and its chemical properties are stable and harmless to the human body. In view of these characteristics of metallic silver, silver-plated fibers are widely used in daily life, for example, electromagnetic shielding fabrics, antibacterial and deodorant fabrics, etc.

[0003] The production process of silver-plated fiber can be roughly divided into chemical plating and vacuum coating. Vacuum coating is not suitable for large-scale industrial production because it requires special equipment. In the electroless plating process, in order to ensure that the silver layer can be plated on the surface o...

Examples

Embodiment 1

[0021] A kind of preparation method concrete process of silver-plated fiber is as follows:

[0022] In the first step, the polyester fiber is immersed in 5g / L sodium hydroxide aqueous solution, stirred and reacted at 130°C for 60 minutes, taken out, and rinsed with deionized water.

[0023] In the second step, immerse the fiber obtained in the first step into 10 g / L tin dichloride aqueous solution, take it out after soaking at room temperature for 2 minutes, and rinse it with deionized water.

[0024] In the third step, immerse the polyester fiber gained in the second step activation treatment in the silver salt solution, the composition of the silver salt solution is: silver nitrate 3g / L, ammoniacal liquor 3.5mL / L, formalin 1.3mL / L; 20- After stirring and reacting at 30°C for 180 minutes, take it out and rinse it with hot water.

[0025] Tests show that this silver-plated fiber has excellent antibacterial effect, and the antibacterial rate against Staphylococcus aureus is gr...

Embodiment 2

[0027] In the first step, the polyester fiber is immersed in 10g / L potassium hydroxide aqueous solution, stirred and reacted at 120°C for 90 minutes, taken out, and rinsed with deionized water.

[0028] In the second step, the fibers treated in the first step are immersed in 10 g / L tin dichloride aqueous solution, soaked at room temperature for 2 minutes, taken out, and rinsed with deionized water.

[0029] The 3rd step, the terylene fiber that second step activation process is immersed in the silver salt solution, the composition of this silver salt solution is: silver nitrate 7.5g / L, ammoniacal liquor 8.7mL / L, formalin 3mL / L; 20 Take it out after stirring and reacting at -30°C for 180 minutes, and rinse it with hot water.

[0030] Tests show that this silver-plated fiber has excellent antibacterial effect, and the antibacterial rate against Staphylococcus aureus is greater than 99.9%. It retains the characteristics of the original fiber, feels soft, and the plating layer is ...

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