Low-silver-loaded electromagnetic wave shielding fabric preparation method
An electromagnetic wave and fabric technology, applied in the fields of magnetic/electric field shielding, electrical components, textiles and papermaking, etc., can solve the problems of increased amount of silver plating on the surface, increased surface area of fabrics, harmful to human body, etc., to achieve high electromagnetic wave shielding efficiency, The effect of low silver loading and high bond strength
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Embodiment 1
[0023] Wash the brocade cloth with an area of 20 cm × 25 cm with deionized water, dry it, weigh 4 g, place it in a 0.01% ethanol solution of 3-aminopropyltrimethoxysilane, and soak it for 30 minutes, take it out, rinse it with ethanol, and dry it to get a nylon-polyester cloth with hydroxylated surface.
[0024] Arrange the surface hydroxylated nylon and polyester in the acetone solution of 1% 3-mercaptopropyltrimethoxysilane, soak for 60 minutes, take it out, rinse with ethanol, dry, weigh 4.01g, and get the surface Mercapto-polyester cloth.
[0025] Dissolve 4g of silver nitrate, 6mL of ammonia water, and 5g of sodium hydroxide in 500mL of deionized water, then dissolve 10g of sodium potassium tartrate in 500mL of deionized water. After the dissolution is completed, mix the above solutions and add deionized water until the volume of the solution is 1L. , to obtain silver electroless plating solution.
[0026] Under the action of ultrasonic waves, place the surface mercap...
Embodiment 2
[0028] The polyester cotton cloth with an area of 20 cm × 25 cm was washed with deionized water, dried, weighed 4.06 g, and placed in a solution of 1% 3-aminopropyltrimethoxysilane in isopropanol, Soak for 45 minutes, take it out, rinse with ethanol, and dry to obtain polyester-cotton cloth with hydroxylated surface.
[0029] The surface hydroxylated polyester cotton is arranged in a butanone solution with a concentration of 5% 3-mercaptopropyltriethoxysilane, soaked for 45 minutes, taken out, rinsed with ethanol, dried, and weighed 4.07g. Obtain surface mercapto-polyester-cotton cloth.
[0030] Dissolve 7g of silver nitrate, 3mL of ammonia water, and 4g of potassium hydroxide in 500mL of deionized water, then dissolve 6g of glucose in 500mL of deionized water, after the dissolution is completed, mix the above solutions, add deionized water until the volume of the solution is 1L, and obtain Silver electroless plating solution.
[0031] Under the action of ultrasonic waves,...
Embodiment 3
[0033]Wash a 20 cm × 25 cm polyester cloth with deionized water, dry it, weigh 4.03 g, and place it in a 5% 3-aminopropyltriethoxysilane butanol solution , soaked for 60 minutes, taken out, rinsed with ethanol, and dried to obtain surface hydroxylated polyester sticky cloth.
[0034] Arrange the hydroxylated polyester on the surface in a tetrahydrofuran solution of 0.01% 3-mercaptopropyltrimethoxysilane, soak for 30 minutes, take it out, rinse with ethanol, dry, weigh 4.04g, and obtain the surface Thiolated polyester viscose cloth.
[0035] Dissolve 12g of silver nitrate, 6mL of ammonia water, and 8g of sodium hydroxide in 500mL of deionized water, and then dissolve 15g of hydrazine hydrate in 500mL of deionized water. After the dissolution is completed, mix the above solutions and add deionized water until the volume of the solution is 1L. Silver electroless plating solution was obtained.
[0036] Under the action of ultrasonic waves, place the mercaptolated polyester on th...
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