A kind of aqueous silver ink and preparation method thereof
A water-based, silver ink technology, used in inks, household appliances, applications, etc., can solve the problems of silver ink inflation, precipitation and agglomeration, slow drying in deep printing, poor water wettability of silver paste, etc. Stability and quality, the effect of improving stability
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Embodiment 1
[0034] A water-based silver ink, in parts by mass, comprising the following components: 30 parts of silver paste, 42 parts of water-based binder, 5 parts of wear-resistant agent, 2 parts of wetting agent, 1 part of defoamer, 10 parts of alcohol and 10 parts of water.
[0035] The preparation method of water-based silver ink is as follows:
[0036] a. In a clean room with a temperature of 25°C and a humidity of 50%, mix the wetting agent, alcohol and water evenly to form a mixed solvent;
[0037] b. soak the silver paste for 120min with the mixed solvent prepared in step a;
[0038] c. Add water-based binder to the soaked silver paste prepared in step b, stir, add defoamer and anti-wear agent respectively during the stirring process, and obtain water-based silver ink after stirring. Wherein, the stirring speed is 800r / min, and the stirring time is 60min.
[0039] Detect the hue of the water-based silver ink obtained, the solid content is 50%, the viscosity at 25°C is 80 seco...
Embodiment 2
[0043] A water-based silver ink, in parts by mass, comprising the following components: 25 parts of silver paste, 35 parts of water-based binder, 4 parts of wear-resistant agent, 1.5 parts of wetting agent, 0.5 part of defoamer, 17 parts of alcohol and 17 parts of water.
[0044] The preparation method of water-based silver ink is as follows:
[0045] a. In a clean room with a temperature of 25°C and a humidity of 50%, mix the wetting agent, alcohol and water evenly to form a mixed solvent;
[0046] b. soak the silver paste for 120min with the mixed solvent prepared in step a;
[0047] c. Add water-based binder to the soaked silver paste prepared in step b, stir, add defoamer and anti-wear agent respectively during the stirring process, and obtain water-based silver ink after stirring. Wherein, the stirring speed is 1000r / min, and the stirring time is 40min.
[0048] Detect the hue of the prepared water-based silver ink, the solid content is 40%, the viscosity at 25°C is 40...
Embodiment 3
[0052] A water-based silver ink, in parts by mass, comprising the following components: 20 parts of silver paste, 38 parts of water-based binder, 0.5 part of wear-resistant agent, 0.2 part of wetting agent, 0.2 part of defoamer, 20 parts of alcohol and 20 parts of water.
[0053] The preparation method of water-based silver ink is as follows:
[0054] a. In a clean room with a temperature of 25°C and a humidity of 60%, mix the wetting agent, alcohol and water evenly to form a mixed solvent;
[0055] b. soak the silver paste for 120min with the mixed solvent prepared in step a;
[0056] c. Add water-based binder to the soaked silver paste prepared in step b, stir, add defoamer and anti-wear agent respectively during the stirring process, and obtain water-based silver ink after stirring. Wherein, the stirring speed is 900r / min, and the stirring time is 50min.
[0057] Detect the hue of the water-based silver ink obtained, the solid content is 33%, the viscosity at 25°C is 60 ...
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