Low-temperature curing touch screen conductive silver paste suitable for laser etching processing
A technology of conductive silver paste and laser etching, applied to conductive materials dispersed in non-conductive inorganic materials, equipment for manufacturing conductive/semiconductive layers, circuits, etc., to improve adhesion, solvent resistance and Effect of weather resistance improvement
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Embodiment 1
[0016] A low-temperature curing touch screen conductive silver paste suitable for laser etching processing. The composition of the paste includes: 60% metallic silver powder, 12% polymer resin, 25% solvent and 3% additives. The metallic silver powder is dendritic silver powder , the particle size of the metal silver powder is 0.8~1μm, and the tap density is 2..2~2.5g / cm 3 , the polymer resin is a polyester resin, and the additives include a dispersant, a leveling agent, a defoamer and a curing agent, and the corresponding proportions are 1%, 0.5%, 0.5% and 1%.
[0017] The method for manufacturing the electrosilver paste comprises the following process steps:
[0018] (1) Carrier preparation: weigh 12% of the weight of the polyester and 25% of the weight of the ester solvent in the reaction kettle, stir and heat to 80°C and keep the temperature constant until the resin is completely dissolved; then The carrier is filtered on a 500-mesh mesh cloth to obtain the carrier.
[00...
Embodiment 2
[0021] A low-temperature curing touch screen conductive silver paste suitable for laser etching processing. The composition of the paste includes: 65% metallic silver powder, 10% polymer resin, 20% solvent and 5% additives. The metallic silver powder is dendritic silver powder , the particle size of the metal silver powder is 0.8~1μm, and the tap density is 2.2~2.5g / cm 3 , the polymer resin is a polyester resin, and the additives include a dispersant, a leveling agent, a defoamer and a curing agent, and the corresponding proportions are 1%, 0.5%, 0.5% and 1%.
[0022] The method for manufacturing the electrosilver paste comprises the following process steps:
[0023] (1) Carrier preparation: weigh 12% of the weight of the polyester and 25% of the weight of the ester solvent in the reaction kettle, stir and heat to 80°C and keep the temperature constant until the resin is completely dissolved; then The carrier is filtered on a 500-mesh mesh cloth to obtain the carrier.
[002...
Embodiment 3
[0026] A low-temperature curing touch screen conductive silver paste suitable for laser etching processing, the paste composition includes: 70% metallic silver powder, 10% polymer resin, 15% solvent and 5% additives, the metallic silver powder is dendritic silver powder , the particle size of the metal silver powder is 0.8~1μm, and the tap density is 2.2~2.5g / cm 3 , the polymer resin is a polyester resin, and the additives include a dispersant, a leveling agent, a defoamer and a curing agent, and the corresponding proportions are 1%, 0.5%, 0.5% and 1%.
[0027] The method for manufacturing the electrosilver paste comprises the following process steps:
[0028] (1) Carrier preparation: weigh 12% of the weight of the polyester and 25% of the weight of the ester solvent in the reaction kettle, stir and heat to 80°C and keep the temperature constant until the resin is completely dissolved; then The carrier is filtered on a 500-mesh mesh cloth to obtain the carrier.
[0029] (2) ...
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