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A wind power blade coating with high wind and sand erosion resistance and preparation method thereof

A technology for wind turbine blades and wind and sand resistance, applied in polyurea/polyurethane coatings, coatings, etc., can solve the problems of increasing the service life of wind turbine blades, reducing the frequency of paint spraying, wind and sand erosion, etc., and achieves high construction efficiency and wind and sand erosion resistance Good, good mechanical properties

Active Publication Date: 2018-12-11
湘江涂料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The polyurethane coating or gel coat currently used is difficult to resist wind and sand erosion, especially the wind and sand erosion on the windward side of the blade is very serious. Generally, the fan needs to be sprayed again after 2 to 5 years of use. Therefore, it is urgent to develop a Wind turbine blade coatings that can withstand severe weather erosion such as wind and sand, reduce the frequency of paint spraying, and increase the service life of fan blades

Method used

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  • A wind power blade coating with high wind and sand erosion resistance and preparation method thereof
  • A wind power blade coating with high wind and sand erosion resistance and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] In this embodiment, the high wind and sand erosion-resistant wind power blade coating is formed by mixing the base material and the curing agent according to the mass ratio of 1.5:1;

[0048] The base material is composed of the following raw materials in parts by weight: 250 parts of polyaspartic acid ester resin 1520, 60 parts of polyaspartic acid ester resin 1420, 150 parts of polyurethane resin HD-338, 500 parts of titanium dioxide R930, 5 parts Leveling agent BYK390, 8 parts of defoamer 5005, 35 parts of anti-scratch additive BYK306, 6 parts of stannous octoate T-9 and triethyldiamine A-33 in a mass ratio of 1:4. 30 parts xylene, 100 parts butyl acetate and 10 parts DBE;

[0049] The curing agent is composed of the following raw materials in parts by weight: 500 parts of aliphatic isocyanate H 12 MDI, 600 parts of polyether polyol PTMEG1000 and 1 part of stannous octoate T-9.

[0050] The preparation method of the high wind and sand erosion-resistant wind power b...

Embodiment 2

[0055] In this embodiment, the high wind and sand erosion-resistant wind power blade coating is formed by mixing base material, curing agent and thinner according to the mass ratio of 2:1:0.2;

[0056] The base material is composed of the following raw materials in parts by weight: 200 parts of polyaspartic acid ester resin 1520, 80 parts of polyaspartic acid ester resin 1420, 200 parts of polyurethane resin HD-338, 550 parts of titanium dioxide R930, 5 parts Leveling agent BYK390, 10 parts of defoamer 5005, 40 parts of anti-scratch additive BYK306, 5 parts of dibutyltin dilaurate T-12 and triethyldiamine A-33 in a mass ratio of 1:5 Catalyst, 40 parts xylene, 90 parts butyl acetate and 10 parts DBE;

[0057] The curing agent is composed of the following raw materials in parts by weight: 500 parts of aliphatic isocyanate H 12 MDI, 100 parts of aliphatic isocyanate HDI trimer, 500 parts of polyether polyol PTMEG1000 and 2 parts of stannous octoate T-9;

[0058] The diluent is ...

Embodiment 3

[0065] In this embodiment, the high wind and sand erosion-resistant wind power blade coating is formed by mixing base material, curing agent and thinner according to the mass ratio of 3:1:0.5;

[0066] The base material is composed of the following raw materials in parts by weight: 150 parts of polyaspartic acid ester resin 1520, 50 parts of polyaspartic acid ester resin 1420, 300 parts of polyurethane resin HD-338, 500 parts of titanium dioxide R930, 8 parts Leveling agent BYK390, 10 parts of defoamer 5005, 40 parts of anti-scratch additive BYK306, 5 parts of dibutyltin dilaurate T-12 and triethyldiamine A-33 in a mass ratio of 1:5 Catalyst, 80 parts xylene, 100 parts butyl acetate and 10 parts DBE;

[0067] The curing agent is composed of the following raw materials in parts by weight: 500 parts of aliphatic isocyanate H 12 MDI, 100 parts of aliphatic isocyanate HDI trimer, 400 parts of polyether polyol PTMEG1000 and 2 parts of stannous octoate T-9;

[0068] The diluent is...

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Abstract

The invention relates to wind power blade paint with high wind and sand erosion resistance and a preparing method thereof. The paint is prepared by blending a base material and a curing agent and further comprises diluent; the base material is prepared from polyaspartic acid ester resin, polyurethane resin, pigment, a flatting agent, a defoaming agent, a scratch-proof agent, a catalyst and solvent; the curing agent is prepared from aliphatic isocyanate, polyether polyol and an organic metal salt catalyst; the diluent is prepared from n-butyl acetate and high-boiling-point solvent. The preparing method includes the steps of preparing the base material, preparing the curing agent and preparing the diluent, and the diluent is added into the prepared base material and the prepared curing agent to obtain the wind power blade paint. The paint is sprayed to the surface of a fan blade, the primary film forming thickness can reach 210 micrometers or more, a paint film is high in mechanical performance, large in adhesive force and high in impact resistance, abrasion resistance, fatigue damage resistance and wind and sand erosion resistance. Production equipment is simple, the production process is convenient, and the preparing method is suitable for large-scale production.

Description

technical field [0001] The invention relates to a coating for wind power blades and a preparation method thereof, in particular to a coating for wind power blades with high resistance to wind and sand erosion and a preparation method thereof. Background technique [0002] At present, my country's wind energy market is constantly expanding, and the wind turbine manufacturing industry has entered a period of rapid development. Many domestic and foreign manufacturing companies have begun to enter my country's wind energy market. The blades currently manufactured and sold in my country are the same as the blades manufactured by most of the manufacturing companies in the world. They all use the production technology of glass fiber reinforced plastics as the main structure, and the blades generally use construction paint or gel coat to protect the surface of the fan blades, so as to protect the wind turbine blades. Fiberglass structure main body. Due to the wide area of ​​China's ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09D175/08C09D175/04C09D175/02C08G18/48
CPCC08G18/4854C08L2205/025C08L2205/035C09D175/08C08L75/04C08L75/02
Inventor 周庆军曹树印李超
Owner 湘江涂料科技有限公司