High-weather-resistance photocatalytic air purification exterior wall fireproof coating and preparation method thereof

• Main Authors: HAN ZHEBING, LAN YUNFENG, LIN PENG
• Format: Patent
• Language: Chinese; English
• Published: 11.12.2020
• 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; MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING; NATURAL RESINS; PAINTS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; POLISHES; SEPARATION; THEIR RELEVANT APPARATUS; TRANSPORTING; USE OF MATERIALS THEREFOR; WOODSTAINS

The invention relates to a high-weather-resistance photocatalytic air purification exterior wall fireproof coating and a preparation method thereof. The coating is mainly prepared from the following components in parts by weight: 10-15 parts of water, 50-60 parts of an emulsion, 20-25 parts of titanium dioxide, 3-7 parts of photocatalytic nano titanium dioxide, 0.6-0.9 part of a dispersing agent,0.3-0.6 part of a wetting agent, 0.5-0.8 part of a defoaming agent, 2-4 parts of a coalescing agent, 0.1-0.3 part of a pH regulator and 0.2-0.4 part of a thickener. The exterior wall coating overcomesthe defects of poor photocatalytic air purification function, fire resistance, hardness, weather resistance and the like of an existing exterior wall coating, and by matching the emulsion with optimized particle size, photocatalytic nano titanium dioxide and titanium dioxide with optimized types and matching with other optimized auxiliary materials and the optimized dosage proportion of the components, the exterior wall c