Nano TiO2 modified fluorocarbon coating for fan blade and preparation method of nano TiO2 modified fluorocarbon coating

Abstract

The invention discloses a nano TiO2 modified fluorocarbon coating for fan blades and a preparation method thereof. The coating comprises a first component and a second component, the first component is prepared from, by weight, 30-75 parts of fluorocarbon resin, 1-8 parts of coalescing agent, 1-3 parts of silane coupling agent, 1-3 parts of isopropanol, 1-2 parts of ultraviolet light absorber, 0.5-1.5 parts of bentonite, 0.1-1.5 parts of leveling agent, 0.5-1 part of nano TiO2, 0.1-1 part of defoaming agent, 0.1-1 part of dispersing agent and 15-25 parts of water; the second component comprises a curing agent; and the mass ratio of the first component to the second component in the nano TiO2 modified fluorocarbon coating is (6-16):1. The nano TiO2 is dispersed into the fluorocarbon resin,so that the weather resistance and the adhesive force of the coating can be improved, and the obtained coating can be used for photocatalytic degradation of organic pollutants, and therefore, the blade coated with the coating has the advantages of freezing resistance, wear resistance, weather resistance, ultraviolet resistance and the like.

Description

technical field [0001] The invention belongs to the technical field of fluorocarbon coatings, in particular to a nano-TiO used for fan blades 2 Modified fluorocarbon coating and its preparation method. Background technique [0002] Wind turbine blades are exposed to ultraviolet rays, strong winds, erosion from seawater and salty humid air, and the impact of sand and stones. Most of the blades of large wind turbines are at a height of more than 50m, which makes it difficult and expensive to repair the blades. Ordinary blade coatings have a relatively low service life. Generally, after 3-5 years of operation, the paint film will peel off and fall off on the windward side of the blade. [0003] Because the performance of fluorocarbon coatings is naturally more advantageous, in addition to higher weather resistance and corrosion resistance, the service life of the paint film is also higher, which can reach more than 10 years of protection. The adhesion of the fluorocarbon top...

AI Technical Summary

Problems solved by technology

[0004] At present, the various climatic conditions of the leaves are relatively harsh during the actual operation process. Generally, they will suffer from wind and sand erosion in the north and a large number of algae plants attached to the leaves in some areas in the south. If the surface of the leaves cannot be cleaned and sterilized in time, the oil on the surface will Accumulation of a large amount of chemicals and stains, and a large number of organic matter reproduction will accelerate the aging of the blade coating and greatly reduce the service life of the blade.