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Elastic putty composition for wind turbine blade

A technology of elastic putty and wind turbine blades, applied in the direction of filling slurry, etc., can solve the problems of burden and high price, and achieve the effect of low cost, improved flexibility, and easier control of operation time

Active Publication Date: 2016-08-31
ZHUZHOU FEILU ADVANCED MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the high prices of coating products of these foreign manufacturers have caused a serious burden on domestic blade manufacturers with fierce competition.

Method used

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  • Elastic putty composition for wind turbine blade
  • Elastic putty composition for wind turbine blade
  • Elastic putty composition for wind turbine blade

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] Preparation of Modified Polyol Resin

[0026] 100 parts by weight of the polyol resin purchased from BASF company HP 4000D with 35 parts by weight supplied by BAYER 1100 parts by weight of polyester resin and 7.5 parts by weight of polyaspartic acid resin purchased from BAYER in Germany were polymerized in a reactor at 200° C. for 5 hours under normal pressure to obtain a modified polyol resin.

Embodiment 1

[0028] The modified polyol resin prepared above

[0029] Put the above-mentioned raw materials in the weight ratio into the internal mixer and mix thoroughly, then perform defoaming treatment to prevent the generation of air bubbles and pinholes. The defoaming is carried out at about -0.1MPa for 5-10 minutes, and the rotation speed of the stirring shaft of the internal mixer is maintained at about 400rpm.

Embodiment 2

[0031] The modified polyol resin prepared above

[0032] Put the above-mentioned raw materials in the weight ratio into the internal mixer and mix thoroughly, then perform defoaming treatment to prevent the generation of air bubbles and pinholes. The defoaming is carried out at about -0.1MPa for 5-10 minutes, and the rotation speed of the stirring shaft of the internal mixer is maintained at about 400rpm.

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Abstract

The invention discloses an elastic putty composition for a wind turbine blade and a preparation method thereof. The elastic putty composition comprises 20-40 parts by weight of modified polyol resin, 1-5 parts by weight of a dispersant, 1-5 parts by weight of an antifoaming agent, 1-5 parts by weight of a thixotropic agent, 5-15 parts by weight of titanium dioxide, 1-5 parts by weight of an active molecular sieve and 20-50 parts by weight of a filling material. The modified polyol resin is prepared from 100 parts by weight of polyol resin, 30-40 parts by weight of polyester resin and 5-10 parts by weight of resin of poly(aspartic acid) through a polymerization reaction at a temperature of 180-220 DEG C. The elastic putty composition has excellent impact resistance, wear and corrosion resistance, stain resistance and anti-freezing performances.

Description

technical field [0001] The invention relates to an elastic putty composition for wind power blades and a preparation method thereof. Background technique [0002] Putty is mainly used for caulking and leveling. Due to its special substrate, its surface has many tiny pinholes. The putty is required to have good filling properties for surface pinholes, fast drying speed, and good adhesion to the substrate. , good elasticity, and good matching performance with topcoat. [0003] The continuous increase of world energy consumption has made the energy crisis situation more and more obvious on a global scale. Alleviating the energy crisis, developing renewable energy and realizing the sustainable development of energy have become important measures for the energy development strategies of countries all over the world. As an important category of renewable energy, wind energy has the characteristics of huge reserves, renewable, wide distribution, and no pollution, which makes wind ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D5/34
Inventor 喻红阳范国栋
Owner ZHUZHOU FEILU ADVANCED MATERIAL TECH CO LTD
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