Conductive particle and conductive material comprising the same
A technology of conductive particles and conductivity, which is applied in the direction of conductive materials, conductors, circuits, etc. dispersed in non-conductive inorganic materials, can solve the problem that it is not easy to meet the requirements of conductivity and dispersion at the same time, and achieve difficult short circuit and high conductivity. High, good dispersion effect
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Embodiment 1
[0091] first process
[0092] (pre-processing)
[0093] A spherical styrenic resin having an average particle diameter of 3.0 μm was used as the core particle. 9 g of the core material particles were thrown into 400 mL of an aqueous conditioner solution (“Cleaner Conditioner 231” manufactured by Rohm and Haas Electronic Materials) while stirring. The concentration of the aqueous conditioner solution was 40ml / L. Next, at a liquid temperature of 60° C., stirring was performed for 30 minutes while applying ultrasonic waves to perform surface modification and dispersion treatment of the core material particles. The aqueous solution was filtered, and 200 mL of slurry was prepared from the core material particles washed once with reslurry water. 200 ml of stannous chloride aqueous solution was thrown into this slurry. The concentration of the aqueous solution is 5×10 -3mol / L. Stirring at room temperature for 5 minutes was performed to perform a sensitization treatment for adso...
Embodiment 2～10
[0114] Except having used the conditions shown in Table 1, it carried out similarly to Example 1, and obtained the electroconductive particle.
Embodiment 11
[0116] (b) Treatment to form a basal film with a smooth surface
[0117] In 3 L of an aqueous solution to which 20 g / L sodium tartrate and 5 g / L polyethylene glycol were added heated to 70°C, the core material particles subjected to the same pretreatment as in Example 1 were put into the mixture while stirring, and stirred thoroughly. Disperse and prepare water-based slurry. Next, 300 mL of a 224 g / L nickel sulfate aqueous solution (first aqueous solution) and a mixed aqueous solution containing 210 g / L sodium hypophosphite and 80 g / L sodium hydroxide (second aqueous solution) were added, respectively. The addition rate was 5 mL / min, respectively. After adding the entire amount of each aqueous solution to the aqueous slurry, stirring was continued for 5 minutes while maintaining a temperature of 70°C. Next, the liquid was filtered, and the filtrate was washed three times, followed by vacuum drying at 110° C. to obtain a substrate-coated particle sample whose surface was coat...
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Abstract
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