Medium insulation coating, preparation method thereof and solid insulation component

• Main Authors: LI WENDONG, ZHANG GUANJUN, YAO HUANMIN, MU HAIBAO, LIU RUIXUAN, WANG CHAO, ZHANG YUCHENG, DENG JUNBO, FU YIJIA
• Format: Patent
• Language: Chinese; English
• Published: 21.10.2022
• Subjects: ADHESIVES; APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TO SURFACES, IN GENERAL; CHEMICAL PAINT OR INK REMOVERS; CHEMISTRY; COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS; CORRECTING FLUIDS; DYES; FILLING PASTES; INKS; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; POLISHES; PROCESSES FOR APPLYING LIQUIDS OR OTHER FLUENT MATERIALS TOSURFACES, IN GENERAL; SPRAYING OR ATOMISING IN GENERAL; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to the technical field of dielectric functional materials, in particular to a dielectric dielectric coating, a preparation method thereof and a solid insulation component. The preparation method of the dielectric constant coating comprises the following steps: preparing a liquid composite coating containing a dielectric filler, a reactive diluent, a photocuring prepolymer and a photoinitiator; coating the surface of a base material with the liquid composite coating to obtain a liquid coating; and carrying out electro-optical excitation treatment on the liquid coating, and then carrying out light curing to obtain the dielectric gradient coating. According to the preparation method, electro-optical excitation is adopted for assisting photocuring, self-adaptive enrichment/orientation of the dielectric filler can be achieved through electric field force, and therefore the surface dielectric strength can be constructed, and the along-surface electric strength is improved. Therefore, the prepa