Preparation method of neodymium-iron-boron magnet anti-corrosion composite slurry

• Main Authors: YANG HUI, LIU JIE, JIANG LIBEI, GAO ZHIBIAO, SHEN QIANHONG, CAO XUDAN
• Format: Patent
• Language: Chinese; English
• Published: 10.11.2023
• Subjects: ADHESIVES; 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; POLISHES; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to a coating preparation technology, and aims to provide a preparation method of neodymium-iron-boron magnet anti-corrosion composite slurry. Comprising the following steps: performing ultrasonic treatment on titanium aluminum carbide in hydrofluoric acid to obtain titanium carbide nanosheets, and then adding the titanium carbide nanosheets into a sodium hydroxide aqueous solution for treatment to obtain modified titanium carbide nanosheets; adding the modified titanium carbide nanosheet, a sodium hydroxide aqueous solution and a zinc salt into a reaction kettle for hydrothermal reaction, and dispersing a precipitate into an alcohol-based solvent to obtain a titanium carbide/zinc titanate composite dispersion liquid; and adding a silane coupling agent ethanol solution, continuously stirring to obtain slurry, filtering, and concentrating to obtain the neodymium iron boron corrosion-resistant composite slurry. The nano zinc titanate in the prepared composite slurry is firmly loaded on the