Water-base polyurethane coating for fan blades and preparation method thereof

• Main Authors: JIA YANHUA, DU JINGYI, LIU HUICHENG, MU CHENGQUAN, SUN XIPENG
• Format: Patent
• Language: Chinese; English
• Published: 09.01.2013
• 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 water-base polyurethane coating for fan blades and a preparation method thereof. The water-base polyurethane coating comprises component A and component B by weight proportion of 5:1. The component A comprises deionized water, anti-settling agents, wetting dispersant, defoaming agents, rutile type titanium dioxide powder, carbon black, precipitated barium sulphate, acrylic dispersion, filming auxiliary, flatting agents and thickeners, and the component B comprises hydrophilic modified polyether HDI (hexamethylene diisocyanate) trimer, modified polyester HDI trimer and propylene glycol methyl ether acetate. By taking water as a main dispersion medium, the water-base polyurethane coating for the fan blades has the advantages of low VOC (volatile organic compounds) release, light smell, low harms on human bodies, non-combustible property, unique safety in storage, transport and use, excellent performance and the like, and further, safety potential hazards caused by accumulation of a grea