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Wind turbine blade edge protection paint based on bio-based polyol

A bio-based polyol, wind power blade technology, applied in coatings, anti-corrosion coatings, fire-resistant coatings, etc., can solve problems such as the environment and occupational health injuries of construction workers, and achieve large-scale production, high construction efficiency, and curing speed. quick effect

Inactive Publication Date: 2020-05-19
HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In a solvent-free topcoat composition for wind turbine blades provided by patent 201711086613.1, the bio-based polyol resin uses heavy metal lead oxide as a catalyst, and a strong carcinogenic oxazolidine dewatering agent is selected, which may be harmful to the environment and construction potential harm to the occupational health of personnel
Patent 201810340991.6 shows a graphene-based topcoat for offshore wind turbine blades, which has relatively excellent resistance to rain erosion, mold, and heat and humidity. sexual problems

Method used

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  • Wind turbine blade edge protection paint based on bio-based polyol

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A wind power blade edge protection paint based on bio-based polyols, the main paint contains 20 parts of bio-based polyol A, 25 parts of bio-based polyol B, 5 parts of reactive diluent SOVERMOL 1102, 15 parts of rutile titanium dioxide R902+ , 15 parts of precipitated barium sulfate, 0.05 parts of drier dibutyltin dilaurate, 0.5 parts of dispersant BYK110, 0.5 parts of leveling agent EFKA3777, 0.5 parts of defoamer BYK066N, 0.5 parts of anti-settling agent BENTONE 38, 1.35 parts of anti-aging Agent Tinuvin 1130, 0.65 parts of Tinuvin292.

[0029] The curing agent is N3900, and the main paint and curing agent are mixed evenly at a mass ratio of 2:1 to make a sample for testing.

Embodiment 2

[0031] A wind power blade edge protection paint based on bio-based polyols, the main paint contains 40 parts of bio-based polyol A, 10 parts of bio-based polyol B, 15 parts of reactive diluent SOVERMOL 1102, 35 parts of rutile titanium dioxide R930 , 30 parts of precipitated barium sulfate, 0.1 part of drier stannous octoate, 1.5 parts of dispersant EFKA4010, 0.5 parts of leveling agent BYK306, 0.7 parts of leveling agent BYK358, 1.2 parts of defoamer BYK085, 1.5 parts of anti-settling agent gas phase Silica R972, 2.1 parts of anti-aging agent Tinuvin1130, 1.9 parts of Tinuvin 292.

[0032] The curing agent is HXLV, and the main paint and curing agent are mixed uniformly at a mass ratio of 3:1 to make a sample for testing.

Embodiment 3

[0034] A wind power blade edge protection paint based on bio-based polyols, the main paint contains 25 parts of bio-based polyol A, 18 parts of bio-based polyol B, 10 parts of reactive diluent SOVERMOL 1102, 18 parts of rutile titanium dioxide R706 , 25 parts of precipitated barium sulfate, 0.05 part of drier dibutyltin dilaurate, 0.8 part of dispersant EFKA4010, 0.1 part of leveling agent BYK306, 0.7 part of leveling agent BYK358, 0.9 part of defoamer BYK085, 0.9 part of anti-settling agent Polyamide wax SUPER, 1.7 parts of anti-aging agent Tinuvin1130, 0.85 parts of Tinuvin 292.

[0035] The curing agent is a mixture of HXLV and N3900 in equal weight ratios. The main paint and curing agent are mixed uniformly at a mass ratio of 2.5:1 to make a sample for testing.

[0036] The performance index of each model among the embodiment 1~3 is as follows:

[0037]

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Abstract

The invention provides a wind turbine blade edge protection paint based on bio-based polyol. The wind turbine blade edge protection paint is composed of a main paint and a curing agent, wherein the main paint comprises bio-based polyol, an active diluent, rutile type titanium dioxide, precipitated barium sulfate, a drier, a dispersing agent, a leveling agent, an antifoaming agent, an anti-settlingagent and an anti-aging agent, the curing agent is solvent-free low-viscosity aliphatic polyisocyanate, and a weight ratio of the main paint to the curing agent is (2-3):1. According to the invention, the resin used by the protection paint is environment-friendly and renewable, and the paint film has good elongation at break, good impact strength, good adhesive force, freezing resistance, weatherresistance, wear resistance, high-temperature resistance, low-temperature resistance, rain corrosion resistance and other performances, and is particularly suitable for reinforced protection of the edge of a wind turbine blade.

Description

technical field [0001] The invention specifically relates to a wind power blade edge protection paint based on bio-based polyols, and belongs to the field of green and environment-friendly special paints. Background technique [0002] When large-sized wind turbine blades are operating in wind farms, they need to withstand various working conditions such as sand, rain, snow, condensation, and salt spray for a long time, as well as strong winds of up to 85m / s, and their edges are easily damaged. In addition, the epoxy glass fiber (carbon fiber) material of the blade is also prone to aging and brittleness in high latitude, high ultraviolet rays, high temperature difference between day and night and other regional environments. Once broken, it will seriously endanger the operation safety of the equipment. At present, the special protective paints for wind power blades mainly include fluorocarbons, polyurethanes, acrylics, etc., and most of them are solvent-based, with low adhesi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D175/04C09D5/25C09D5/08C09D7/61
CPCC08K2003/2241C08K2003/3045C09D5/00C09D5/08C09D5/18C09D175/04C09D7/61C08K13/02C08K3/22C08K3/30
Inventor 喻红阳张刚伍菲菲林益军丁嘉欣
Owner HUNAN AEROSPACE SANFENG SCI & TECH CO LTD
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