Silver paste and coatings produced therefrom
A silver paste and silver alloy technology, applied in coatings, rosin coatings, metal-free paints, etc., can solve the problems of unstable metal decorations and insufficient adhesion between metal decorations and substrates, and achieve high metal decoration. Glossy, good adhesion effect
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Embodiment 1
[0104] Will consist of 50% Dymerex TM A resin solution prepared with (rosin resin from Eastman) and 50% 1-methoxy-2-propanol was used as a binder. First 3 g of the above solution are introduced. Then add 4 g of silver nanoparticle paste (D 50 =70nm,D 90 =115nm, in ethanol, solid content is 45%, NanoComposix), 2g of polymer mixture (Dowsil TM Fluid 593: Dimethicone / silicone resin blend, Dow Chemicals), 0.1 g of platinum resinate MR7801-P (Alfa Chemistry), 0.2 g of bismuth(III) 2-ethylhexanoate (ABCR) and 0.7 g of 1-methoxy-2-propanol. The resulting mixture was stirred until homogeneous.
[0105] The silver paste obtained in this way, which is particularly suitable for brushing, is then applied to the glass by brushing. After drying, the decorated glass was sintered at 560 °C for 30 minutes. In this way, a particularly lustrous dark platinum-like decoration is obtained on glass surfaces.
Embodiment 2
[0107] Will consist of 70% Dymerex TM A resin solution prepared with (rosin resin from Eastman) and 30% Dowanol DPM (dipropylene glycol monomethyl ether) was used as a binder. First 4 g of the above solution are introduced. Then add 4 g of silver nanoparticle paste (D 50 =70nm,D 90 = 115 nm, in ethanol, solids content 45%, NanoSaar AG), 1 g of polymer mixture (Dowsil TM Fluid 593: Dimethicone / silicone resin blend, Dow Chemicals), 0.1 g of platinum resinate MR7801-P (Alfa Chemistry), 0.2 g of bismuth(III) 2-ethylhexanoate (ABCR) and 0.7 g of 1-methoxy-2-propanol. The resulting mixture was stirred until homogeneous.
[0108] The viscous silver paste suitable for printing obtained in this way was then applied to the glass. After drying, the decorated glass was sintered at 560 °C for 30 minutes. In this way, a lustrous platinum-like decoration is obtained on the glass surface.
Embodiment 3
[0110] Will consist of 60% Poly-Pale TM (Partially dimerized rosin resin from Eastman) and 40% terpineol were used as binders. First 4 g of the above solution are introduced. Then add 4 g of silver nanoparticle paste (D 50 =70nm,D 90 = 115 nm, in DPM, 45% solids, DOWA Electronics Materials Co., Ltd.), 1 g of polymer mixture (DX175 from Shin-Etsu), 0.1 g of platinum resinate (Fuji), 0.2 g of 2 - Bismuth(III) ethylhexanoate and 0.7 g of 1-methoxy-2-propanol. The resulting mixture was stirred until homogeneous.
[0111] The resulting metal paste was then applied on glass by screen printing. After drying, the decorated glass was sintered at 560 °C for 30 minutes. In this way, a silky platinum-like decoration is obtained.
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