Corrosion induction-corrosion inhibition-self-repairing microcapsule as well as preparation method and coating thereof

• Main Authors: MU CHUNHUI, YU BO, JIANG GUOJIE, SUN ZHIHUA
• Format: Patent
• Language: Chinese; English
• Published: 30.05.2023
• Subjects: ADHESIVES; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; 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; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention provides a corrosion induction-corrosion inhibition-self-repairing microcapsule, a preparation method thereof and a coating. Each kind of microcapsule is prepared from urea, ammonium chloride, resorcinol, a defoaming agent, an improver, an organic solvent, a formaldehyde solution and water according to a certain proportion, the improver in the microcapsule 1 is an oil-soluble acid-base indicator bromophenol blue, the improver in the microcapsule 2 is an oil-soluble corrosion inhibitor, the improver in the microcapsule 3 is an organic solvent, and the organic solvent is an organic solvent. The improver in the microcapsule 1 is an oil-soluble self-repairing agent, specifically at least one of barium petroleum sulfonate, barium dinonyl naphthalene sulfonate, benzotriazole and imidazoline, and the improver in the microcapsule 3 is an oil-soluble self-repairing agent, specifically triethoxy-1H, 1H, 2H, 2H-tridecafluoro-N-octyl silane and/or oleic acid octyl dimethyl silicone grease. The microcapsule