Special conductive filament printing silver slurry for capacitive touch screen and preparation and application methods of special conductive filament printing silver slurry
A technology of capacitive touch screen and thin wire, which is applied in the manufacture of cables/conductors, conductive materials dispersed in non-conductive inorganic materials, circuits, etc. It can solve the unstable performance of silver paste, high unit price of imported silver paste, poor versatility, etc. problems, to achieve the effect of widely popularizing and applying, shortening the production cycle, and being easy to realize
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Embodiment 1
[0027] Embodiment 1: A special conductive fine line printing silver paste for a capacitive touch screen provided in this embodiment, its raw materials include the following components in parts by weight: 60 parts of silver powder, 9 parts of vinyl resin, 22 parts of solvent, color 3 parts of powder, 2 parts of auxiliary agent. Among them, vinyl resins are preferred because they have good fluidity and can provide good printability.
[0028] A preparation method for preparing the above-mentioned special conductive fine line printing silver paste for capacitive touch screen, which comprises the following steps:
[0029] (1) Mix the vinyl resin and the solvent, heat and stir for 2 to 4 hours, preferably 3 hours, and obtain the mixed liquid after stirring evenly;
[0030] (2) After the mixture is cooled, add silver powder, toner and additives to the mixture, stir with a mixer at high speed for 20 to 40 minutes, and obtain a slurry after stirring evenly;
[0031] (3) Put the slurr...
Embodiment 2
[0038] Embodiment 2: a kind of capacitive touch screen dedicated conductive fine line printing silver paste and its preparation and use method provided by this embodiment are basically the same as embodiment 1, the difference is that the weight and number ratio of each component of the raw material is different, Its raw materials include the following components in parts by weight: 70 parts of silver powder, 6 parts of vinyl resin, 23 parts of solvent, 0.5 part of toner, and 3 parts of auxiliary agent.
Embodiment 3
[0039] Embodiment 3: a kind of capacitive touch screen dedicated conductive fine line printing silver paste and its preparation and use method provided in this embodiment are basically the same as in embodiment 1, the difference is that the weight and number ratio of each component of the raw material is different, The raw materials include the following components in parts by weight: 72 parts of silver powder, 8 parts of vinyl resin, 25 parts of solvent, 0.8 part of toner, and 1 part of auxiliary agent.
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