| 摘要 |
Conductive ink using silver nanogel is provided to obtain the surface resistance of 5 mФ/sq/mil under the drying condition of a temperature of 150 °C and time of 10 seconds useful for ink jet or gravure printing, and to control viscosity by controlling the addition amount of nanosilver gel. A composition for preparing silver nanogel comprises (i) silver ion solution, (ii) polymer binder, (iii) reducing agent and (iv) diethanol,2,2 azobis. The composition is obtained by reacting (i) silver ion solution, (ii) polymer binder, and (iii) reducing agent, centrifuging them, and adding (iv) diethanol,2,2 azobis. The macromolecular binder is at least one selected from polymer pyrrolidone, polymer urethane or polymer amide. An ink composition comprises (i) nanosilver gel , (ii) aqueous solution or organic solvent and (iii) an organic additive selected from hexyl alcohol, dodecyl alcohol, diethylene alcoholamine, and ethylenglycol. |
