Manufacturing Method of Polyamideimide/silica hybrid material for coating electrical wire and the material, electrical wire

摘要

The present invention wire coating method, and a polyamide-imide by this silica silica hybrid material of polyamide-imide hybrid material, and relates to a wire was coated with the material, a particle size of 3 ~ 200nm-dispersion of colloidal silica (colloidal silica) The colloidal silica Silane Colo organic groups formed on the surface of colloidal silica was added thereto and the organic silane to the first step and to prepare a sol; A second step adding an organic solvent and performing a substitution with a colloidal silica sol silane in the polyamide-imide (polyamideimide) and the compatibility of the first step in the colloidal silica sol with an organic silane; A third step of stirring by addition of the hybrid silica crystallized with polyamide-imide to the silane with colloidal silica sol polyamide-imide (polyamideimide) in the second step; Technical the production process and whereby the material of the wire coating prepared polyamideimide silica hybrid material characterized by comprising a; hybrid fourth step of stirring by the addition of the aminosilane on the screen that the sol solution in the third step and as a base. Whereby the polyamide-imide (polyamideimide) in colloidal silica sol silane uniformly hybridization to arc resistance, electrical insulating properties, dielectric properties, heat resistance, and adhesive properties and excellent mechanical properties can supply the organic-inorganic hybrid material, This coating on the wire by arc resistance and electrical insulating property in a high temperature environment has the advantage that it can provide the electric wire is maintained.