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Epoxy ash for high performance megawatt wind turbine blades and preparation method thereof

A wind power blade and megawatt-level technology, which is applied in the field of epoxy ash for wind power blades and its preparation, can solve problems such as poor light resistance, and achieve the effects of excellent alkali resistance, low shrinkage, and small internal stress

Inactive Publication Date: 2011-11-30
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

Although epoxy fiberglass can meet the mechanical performance requirements of wind power blades in all aspects, its light resistance is poor, and wind power generating units are located in coastal and desert areas, facing high-intensity salt spray corrosion, ultraviolet radiation and wind and sand erosion, etc. Wind power blades surface coating is essential

Method used

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  • Epoxy ash for high performance megawatt wind turbine blades and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Component A: Add 33 parts (parts by weight, the same below) of epoxy resin (polyurethane modified E-52D epoxy resin, the epoxy value of which is 0.5 and the solid content is greater than or equal to 98) in a 1.5L stainless steel tank %), and 1 part of thixotropic agent (hydrogenated castor oil thixotropic agent), 1.5 parts of wetting and dispersing agent additives (EFKA4010 and EFKA4009), 6 parts of reactive diluent (propylene oxide butyl ether), heated to Stir evenly after 85℃~100℃, add 55 parts of pigments and fillers (calcium carbonate) under the high-speed disperser, and add 2 parts of silicone defoamer (AFCONA-2020), 1.5 parts of polyacrylate leveling agent, At the same time, stir at a high speed until the powder is basically opened without agglomerates, and the A component of the high-performance megawatt-level wind power blade epoxy putty is prepared.

[0036] Component B: Add 85 parts of amines into a 1.5L stainless steel tank (cardanol modified phenalkamine, th...

Embodiment 2

[0039] Component A: Add 38 parts of epoxy resin (SM-828, the epoxy resin has an epoxy value of 0.5 and a solid content greater than or equal to 98%) in a 1.5L stainless steel tank, and 1.2 parts of a thixotropic agent (oxidized castor oil Thixotropic agent), 1.3 parts of wetting and dispersing agent additive (EFKA4009), 6 parts of reactive diluent (tetradecyl glycidyl ether), after being heated to 85 ℃ ~ 100 ℃, disperse evenly at high speed, and put it in a high-speed disperser Next, add 51 parts of pigments and fillers (kaolin), and add 2 parts of silicone defoamer (AFCONA-3239), 1.5 parts of polyacrylate leveling agent, and stir at high speed until the powder basically opens without agglomerates, that is, Component A of epoxy putty for high-performance megawatt wind turbine blades.

[0040] Component B: Add 95 parts of amine substances (fatty amine, amine value of 220mgKOH / g, solid content of 80%), 5 parts of thixotropic agent (fumed silica) into a 1.5L stainless steel tank,...

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Abstract

The invention discloses a high-performance epoxy ash for megawatt wind power blades and a preparation method. The epoxy ash is formed by mixing a putty part and a curing agent part, wherein the mass composition of the putty part is: Epoxy resin 20-65%, reactive diluent 5-20%, pigment and filler 40-70%, wetting and dispersing agent 1-5%, leveling agent 0.1-5%, defoamer 1-4%, thixotropic The curing agent is 0.5-10%; the curing agent part is formed by mixing amine substances and thixotropic agents. The product of the invention has the advantages of convenient curing, strong adhesion, low shrinkage, excellent mechanical properties, good electrical properties, chemical stability and the like.

Description

technical field [0001] The invention belongs to the field of epoxy ash, and in particular relates to an epoxy ash for wind power generation blades of megawatt wind power generation equipment and a preparation method thereof. Background technique [0002] As one of the most important components in a wind power generator, the structural design and material selection of wind power blades are crucial. Composite materials for wind power blades are selected according to the length of the blades. Wind turbines with power generation below 1.5MW and blade length below 33 meters generally use polyester fiberglass with low cost as raw materials, and the power generation is above 1.5MW. Wind turbines with a blade length of more than 33 meters generally use epoxy glass fiber reinforced plastics with excellent strength and other comprehensive properties as the main material. [0003] At present, the world is vigorously developing megawatt-level high-power wind power generation technology...

Claims

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Application Information

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IPC IPC(8): C09D5/34
Inventor 薛芳王小龙陈军许涛祁玲玲
Owner 江苏普兰纳涂料有限公司
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