Insulated ultrafine powder, method for producing same, and high dielectric constant resin composite material

摘要

Provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed and further adding water thereto and a method for producing the same. Also, provided are an insulated ultrafine powder obtained by adding liquid metal alkoxide to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed, further adding a coupling agent having an alkoxide group and then adding water thereto and a method for producing the same. Further, provided is a high dielectric constant resin composite material obtained by blending the insulated ultrafine powder of the present invention with a resin in a volume ratio (insulated ultrafine powder/resin) falling in a range of 5/95 to 50/50.

主权项

1. An insulated ultrafine powder obtained by adding liquid metal alkoxide having alkyl groups other than methyl groups to a methanol-containing organic solvent in which a conductive ultrafine powder comprising a carbon material is dispersed, further adding an organic silicon compound or a coupling agent and then adding water thereto, said insulated ultrafine powder having an insulated coating film on a surface of the conductive ultrafine powder, wherein said liquid metal alkoxide is turned into a solid material by alcohol substitution reaction with methanol.