Long-acting anti-icing wind power blade coating and preparing method thereof

Abstract

The invention discloses a long-acting anti-icing wind power blade coating and a preparing method thereof. According to a formula, the coating is prepared from a component A and a component B, wherein the component A is prepared from resin, dispersant, titanium dioxide, carbon black, a conducting material, a defoaming agent, a leveling agent, a rheological additive, a flatting agent, an adhesion promoter, an initiating agent, butyl acetate and propylene glycol monomethyl ether; the component B is prepared from an HDI tripolymer and a prepolymer made of HDI or IPDI, and the curing agent component with the -NCO content of 5-15%. The preparing method of the coating and a preparing method of the component A are provided. On the premise that a paint film has excellent performance for daily use, the film serves as a resistor while being changed into a conductor, the problem that blades ice during operation in snowy weather in winter is solved thoroughly, and long-term safe and stable operation and service life of a wind power unit are guaranteed.

Description

technical field [0001] The invention belongs to the field of coatings, and in particular relates to a long-acting anti-icing wind power blade coating and a preparation method thereof. Background technique [0002] Wind power blades are prone to icing in winter in snowy weather and in the south with low temperature and high humidity, which affects the stable, continuous and safe operation of wind power and causes serious losses to blades and generators. To solve the problem of icing blades in winter, existing solutions mostly use nanotechnology Micro-rough structure and low surface energy topcoat. In practical applications, the nano-micro-rough structure and low surface energy topcoat are quickly worn by impurities in the air during the high-speed rotation of the blade and quickly lose their low surface energy and high water contact angle. , it loses its hydrophobic effect; there is also a method of passing hot air through the blade to heat the blade as a whole to melt the ic...

AI Technical Summary

Problems solved by technology

[0002] Wind power blades are prone to icing in winter in snowy weather and in the south with low temperature and high humidity, which affects the stable, continuous and safe operation of wind power and causes serious losses to blades and generators. To solve the problem of icing blades in winter, existing solutions mostly use nanotechnology Micro-rough structure and low surface energy topcoat. In practical applications, the nano-micro-rough structure and low surface energy topcoat are quickly worn by impurities in the air during the high-speed rotation of the blade and quickly lose their low surface energy and high water contact angle. , it loses its hydrophobic effect; there is also a method of passing hot air through the blade to heat the blade as a whole to melt the ice to achieve the purpose of anti-icing, but due to the poor thermal conductivity of the blade material, a higher At the same time, because the sealing of the blades is not particularly good, there is also a large amount of heat loss, so it is rarely used; or the method of regularly stopping the ice for deicing, which actually has a great impact on continuous power generation, and is extremely difficult for the operation of large blades. difficulty