A kind of preparation method of conductive paper for electromagnetic shielding protection card
A technology of electromagnetic shielding and conductive paper, which is applied in the field of preparation of conductive paper for electromagnetic shielding protective cards, which can solve problems such as harshness, interference of electronic equipment, health hazards of operators, etc., and achieve good mechanical properties, electrical conductivity, and good electromagnetic shielding effect , enrich the effect of the preparation method
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Embodiment 1
[0024] (1) 5mmoL of FeCl 3 ·6H 2 O and 4 mmoL BaCO 3 Dissolve in 60mL of glacial acetic acid, then add 6mL of ethanolamine and 0.5g of sodium carbonate, stir for 70min, then pour the solution into a Teflon-lined reaction kettle, seal it, heat it to 180°C, keep it warm for 18h, and cool it naturally to Suction filtration at room temperature, rinse the solid with deionized water for 5 times, and then dry in a vacuum oven at 70°C for 14 hours to obtain barium ferrite;
[0025] (2) Place the barium ferrite prepared in step (1) in the palladium activation solution, activate it with 300W ultrasonic wave for 20 minutes, filter and separate, and then clean it with deionized water to obtain the activated barium ferrite for use;
[0026] (3) Add 1.6g of copper sulfate, 2.7g of glucose, and 0.04g of ascorbic acid into 88mL of deionized water to dissolve, add 20g of sodium hydroxide and mix for 20min, then add 12mL of 40Wt% formaldehyde solution, and ultrasonically stir to dissolve, wit...
Embodiment 2
[0030] (1) 5mmoL of FeCl 3 ·6H 2 O and 4 mmoL BaCO 3 Dissolve in 60mL of glacial acetic acid, then add 6mL of ethanolamine and 0.5g of sodium carbonate, stir for 50min, then pour the solution into a Teflon-lined reaction kettle, seal it, heat it to 220°C, keep it warm for 14h, then cool naturally to At room temperature, filter with suction, rinse the solid with deionized water for 5 times, and then dry in a vacuum oven at 100°C for 10 hours to obtain barium ferrite;
[0031] (2) Place the barium ferrite prepared in step (1) in the palladium activation solution, activate it with 400W ultrasonic wave for 10 minutes, filter and separate, and then clean it with deionized water to obtain the activated barium ferrite for use;
[0032] (3) Add 1.6g of copper sulfate, 2.7g of glucose, and 0.04g of ascorbic acid into 88mL of deionized water for dissolution, add 20g of sodium hydroxide and mix for 40min, then add 12mL of 40Wt% formaldehyde solution, and dissolve with ultrasonic stirri...
Embodiment 3
[0036] (1) 5mmoL of FeCl 3 ·6H 2 O and 4 mmoL BaCO 3 Dissolve in 60mL of glacial acetic acid, add 6mL of ethanolamine and 0.5g of sodium carbonate, stir for 65min, then pour the solution into a Teflon-lined reaction kettle, seal it, heat it to 190°C, keep it warm for 17h, and cool naturally to Suction filtration at room temperature, rinse the solid with deionized water for 5 times, and then dry in a vacuum oven at 80°C for 13 hours to obtain barium ferrite;
[0037] (2) Place the barium ferrite prepared in step (1) in the palladium activation solution, activate it with 340W ultrasound for 16 minutes, filter and separate, and then clean it with deionized water to obtain the activated barium ferrite for use;
[0038](3) Add 1.6g of copper sulfate, 2.7g of glucose, and 0.04g of ascorbic acid into 88mL of deionized water to dissolve, add 20g of sodium hydroxide and mix for 25min, then add 12mL of 40Wt% formaldehyde solution, and dissolve with ultrasonic stirring, with a power of...
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