Preparation method of conductive ink for touch screen and forming process of conductive circuit
A technology of conductive ink and conductive circuit, applied in the direction of conductive pattern formation, ink, printed circuit, etc., can solve the problem of high cost, achieve cost saving, no chemical waste liquid pollution, and shorten production time
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Embodiment 1
[0026] The preparation method of the conductive ink for touch screen of the present invention is as follows:
[0027] Add 14g of silver nitrate to 30mL of deionized water at room temperature and stir until completely dissolved, then slowly drop in ammonia water with a mass concentration of 10% while shaking until the solution is clear, then add 3mL of polyacrylic acid and 1g of β-cyclodextrin and stir for 0.8h, Prepare a silver nitrate solution; add diethanolamine to 30 mL of deionized water and stir until completely dissolved to obtain a diethanolamine solution with a mass concentration of 25%; add the diethanolamine solution to the silver nitrate solution at room temperature and stir for 25 minutes, then add 4 mL of ethylene glycol Alcohol was ultrasonically oscillated at a frequency of 40kHz and a power of 450W for 0.8h, and filtered through a nano-membrane with a pore size of 100-200nm for 1.3h to obtain a transparent low-viscosity liquid conductive ink.
Embodiment 2
[0029] The preparation method of the conductive ink for touch screen of the present invention is as follows:
[0030] Add 14g of silver nitrate to 30mL of deionized water at room temperature and stir until completely dissolved, then slowly drop in ammonia water with a mass concentration of 10% while shaking until the solution is clear, then add 3mL of polyacrylic acid and 1g of β-cyclodextrin and stir for 0.5h, Prepare a silver nitrate solution; add diethanolamine to 30mL deionized water and stir until completely dissolved to obtain a diethanolamine solution with a mass concentration of 25%; add the diethanolamine solution to the silver nitrate solution at room temperature and stir for 20min, then add 4mL ethylene glycol Alcohol is subjected to ultrasonic oscillation at a frequency of 45kHz and a power of 450W for 1.0h, and is filtered with a nano-membrane with a pore size of 100-200nm for 1h to obtain a transparent low-viscosity liquid conductive ink.
Embodiment 3
[0032] The preparation method of the conductive ink for touch screen of the present invention is as follows:
[0033] Add 14g of silver nitrate to 30mL of deionized water at room temperature and stir until completely dissolved, then slowly drop in ammonia water with a mass concentration of 10% while shaking until the solution is clear, then add 3mL of polyacrylic acid and 1g of β-cyclodextrin and stir for 1.0h, Prepare a silver nitrate solution; add diethanolamine to 30mL deionized water and stir until completely dissolved to obtain a diethanolamine solution with a mass concentration of 25%; add the diethanolamine solution to the silver nitrate solution at room temperature and stir for 30min, then add 4mL ethylene glycol Alcohol is subjected to ultrasonic oscillation at a frequency of 30kHz and a power of 450W for 0.5h, and is filtered through a nano-membrane with a pore size of 100-200nm for 1.5h to obtain a transparent low-viscosity liquid conductive ink.
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