Preparation method of anti-ultraviolet agent, anti-crack coating containing anti-ultraviolet agent and preparation method of anti-crack coating

• Main Authors: PENG LEI, LI ZHI, FU QIANG, SUN DONGWEI, LIN MUSONG
• Format: Patent
• Language: Chinese; English
• Published: 05.11.2021
• 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 discloses a preparation method of an anti-ultraviolet agent, an anti-crack coating containing the anti-ultraviolet agent and a preparation method of the anti-crack coating, and relates to the field of coatings. The preparation method of the anti-ultraviolet agent comprises the following steps of: adding carbon black into a nitric acid solution for reaction, adding the washed and dried carbon black into a formaldehyde solution and a strong alkali solution for reaction, adding the washed and dried carbon black into an organic solvent and benzophenone for reaction, and filtering and drying to obtain the anti-ultraviolet agent. The anti-cracking coating is prepared from the following raw materials: a resin base material, a reinforcing agent, a solvent, a plasticizer, a flame retardant, a cross-linking agent, a catalyst and the prepared anti-ultraviolet agent. Benzophenone is loaded on the surface and holes of the carbon black in a chemical bond combination mode to prepare the anti-ultraviolet agent,