| abstract |
Disclosed are an insulating coating composition prepared by adding metal nitrate and/or metal nitrite, a method for manufacturing the same, and a high weather resistance electrical steel sheet using the same. Insulation coating composition according to the present invention is a metal phosphate (M x = 1-3 (H 3 PO 4 ) y = 1-3 ); and an organic-inorganic composite in which the functional group contained in the organic resin is substituted with inorganic nanoparticles; and, when calculated as the integral value of the energy peak during energy dispersive X-ray spectroscopy (EDS) analysis of the insulating coating composition, phosphorus (P) With respect to the content of the element 100%, the element ratio of the metal (M) element is 100 to 250%. |