Epoxy priming paint used for moisture resisting megawatt wind-power blades and preparation method thereof

A technology of wind power blades and epoxy primers, which is applied in the direction of epoxy resin coatings and coatings, can solve the problems that the moisture resistance is difficult to meet the design service life of wind power blades, the cost of wind power blades is high, and the price is high, so as to achieve excellent attachment Strong, anti-cracking, fast-drying effects

Inactive Publication Date: 2012-11-07
江苏普兰纳涂料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the most widely used supporting coatings for wind power blades in my country are the supporting system of polyurethane primer + polyurethane topcoat, and most of them are imported products from abroad. The matching system of polyurethane primer + polyurethane topcoat is relatively expensive, and the cost of coating wind turbine blades with it Although the coating of onshore wind power blades has the advantages of resistance to wind and sand erosion and UV radiation, it is difficult to meet the design service life of general wind power blades in terms of moisture resistance when using it to coat offshore wind power blades.

Method used

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  • Epoxy priming paint used for moisture resisting megawatt wind-power blades and preparation method thereof
  • Epoxy priming paint used for moisture resisting megawatt wind-power blades and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] The epoxy primer component A of the wind power blade of the present embodiment includes (parts by weight, the same below): 18 parts of bisphenol A epoxy resin, 55 parts of pigments and fillers (zinc phosphate, titanium dioxide), 2 parts of anti-settling agent bentonite , 5 parts of matting agent fumed silica, 1 part of polyester modified polyphosphate dispersant, 1 part of organically modified silicone defoamer, 0.5 part of silicone leveling agent, 0.5 part of epoxy silicone Alkane coupling agent, 20 parts of mixed solvent of xylene and n-butanol (the weight ratio of xylene and n-butanol is 4:1).

[0034] Its preparation method is: (1) Add 18 parts of epoxy resin, 1 part of dispersant (AFCONA-5010), 1 part of defoamer (793) and 20 parts of mixed solvent composed of xylene and n-butanol into the dispersion vessel , use a high-speed disperser to disperse for 10-20 minutes, and control the stirring rate at 1500-2500 rpm. (2) Weigh 55 parts of pigments and fillers, 2 parts...

Embodiment 2

[0038] The epoxy primer component A of the wind power blade of the present embodiment includes: 20 parts of bisphenol A epoxy resin, 55 parts of pigments and fillers (titanium dioxide and talcum powder), 3 parts of anti-settling agent bentonite, 4 parts of matting agent gas phase two Silicon oxide, 1.2 parts of polyester modified polyphosphate dispersant, 1.5 parts of organomodified silicone defoamer, 1 part of silicone leveling agent, 1 part of epoxy siloxane coupling agent, 20 parts Mixed solvent (weight ratio of xylene and n-butanol 3:1).

[0039] Its preparation method is: (1) 20 parts of epoxy resin, 1.2 parts of dispersant (AFCONA-5010), 1.5 parts of defoamer (Bolitong AF 9903) and 20 parts of a mixed solvent composed of xylene and n-butanol are added to a dispersing vessel, dispersed with a high-speed disperser for 10-20 minutes, and the stirring rate is controlled at 1500-2500 rpm. (2) Weigh 55 parts of pigments and fillers, 3 parts of anti-sedimentation agent and 3 ...

Embodiment 3

[0043] The epoxy primer component A of the wind power blade of the present embodiment comprises: 25 parts of bisphenol A epoxy resins, 55 parts of pigments and fillers (talcum powder and kaolin), 4 parts of anti-settling agent bentonite, 3 parts of matting agent gas phase dioxide Silicon, 1.5 parts of polyester modified polyphosphate dispersant, 2 parts of organomodified silicone defoamer, 1 part of silicone leveling agent, 1 part of epoxy siloxane coupling agent, 25 parts of two A mixed solvent of toluene and n-butanol (the weight ratio of xylene to n-butanol is 5:1).

[0044] Its preparation method is: (1) Add 25 parts of epoxy resin, 1.5 parts of dispersant (AFCONA-5010), 2 parts of defoamer (793) and 20 parts of mixed solvent composed of xylene and n-butanol into the dispersion vessel , use a high-speed disperser to disperse for 10-20 minutes, and the stirring rate is controlled at 1500-2500 rpm. (2) Weigh 55 parts of pigments and fillers, 4 parts of anti-sedimentation ag...

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Abstract

The invention discloses an epoxy priming paint used for moisture resisting megawatt wind-power blades and its preparation method. The priming paint is prepared by mixing a coating part A with a curing agent part B; wherein the portion of the coating part A comprises by weight: 18 to 25 portions of epoxy resin, 50 to 60 portions of pigments and fillers, 2 to 4 portions of anti-settling agent, 1 to1.5 portions of dispersing agent, 1 to 2 portions of antifoaming agent, 0.5 to 1 portions of leveling agent, 0.5 to 1 portions of coupling agent and 15 to 25 portions of organic solvent; the curing agent part B is composed of modified amine and the organic solvent. The priming paint of the invention has the advantages of excellent adhesive force, good flexibility, prominent moisture resistance and good workability, which is especially suitable for coating the megawatt wind-power blades under high humility environment.

Description

technical field [0001] The invention belongs to the field of coatings for wind power blades, in particular to an epoxy primer for wind power blades and a preparation method thereof. Background technique [0002] At present, the world is vigorously developing megawatt-level high-power wind power generation technology. Wind power generation is a mechanical device that converts wind energy into electrical energy. core part of the unit. The working environment of fan blades is harsh and will be affected by various environments, such as wind and sand erosion, ultraviolet radiation aging, coastal salt spray corrosion, temperature changes, etc., and the blades work at high altitude and under all-weather conditions, and are often affected by air medium, atmosphere, etc. Rays, dust, lightning, heavy rain, ice and snow attack, so the operating conditions and operating environment of the blades are extremely harsh. In addition, the hoisting cost of large blades is extremely expensive ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D163/02C09D163/00
Inventor 薛芳陈军祁玲玲薛路
Owner 江苏普兰纳涂料有限公司
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