| abstract |
The insulated line that the invention provides a kind of polyamide-imide resin insulating coating material and used this coating.Described polyamide-imide resin insulating coating material by aromatic diamine composition, aromatic diisocyanate composition, have the sour composition and the solvent composition of aromatic tricarboxylic acids acid anhydride, described aromatic diamine composition is made up of aromatic diamines with 3 above phenyl ring and aromatic diamines with 2 following phenyl ring.This polyamide-imide resin insulating coating material has been realized low-kization when keeping thermotolerance, mechanical characteristics, oil-proofness etc., can obtain the high epithelium of partial discharge inception voltage. |