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Thixotrope for high-power wind turbine blade and preparation method thereof

A technology of wind turbine blades and thixotropic glue, applied in the direction of adhesive, epoxy resin glue, adhesive type, etc., can solve the problems of short pot life, high water absorption, poor aging resistance, etc., to improve water resistance and surface energy. High, improve the effect of mechanical properties

Inactive Publication Date: 2013-11-06
黑龙江省化工研究院有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing polyurethane tougheners have technical defects such as high water absorption, short pot life, and poor aging resistance

Method used

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  • Thixotrope for high-power wind turbine blade and preparation method thereof
  • Thixotrope for high-power wind turbine blade and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0036] (1) Preparation of component A of thixotrope

[0037] 20g of bisphenol A type epoxy resin E51, 40g of bisphenol A type epoxy resin E44, 5g of hydroxyl-terminated polyurethane toughening agent for special polyurethane, 5g of ethylene glycol diglycidyl ether, 0.1g of silane coupling agent KH- 560, 15g of glass fiber with a length of 0.1mm, 5g of activated white carbon black, and 0.1g of glycerin are poured into a kneader with a heating device, and mixed for 30 minutes under normal pressure at 60°C. Grind and disperse with a three-roll mill to make component A of the thixotrope.

[0038] The preparation method of the hydroxyl-terminated polyurethane toughening agent of the special polyurethane is as follows: add 100 g of polyether diol with an average molecular weight of 1200 and 7.2 g of toluene diisocyanate (TDI) in a flask, and stir under normal pressure and 60 ° C. , reacted for 30 minutes, then raised the temperature to 80°C and stirred, and reacted for 3 hours to ma...

example 2

[0045] (1) Preparation of component A of thixotrope

[0046] 35g of bisphenol A type epoxy resin E44, 35g of bisphenol A type epoxy resin E51, 8g of hydroxyl-terminated polyurethane toughening agent for special polyurethane, 8g of ethylene glycol diglycidyl ether, 0.3g of silane coupling agent KH- 560, 20g of glass fiber with a length of 0.5mm, 8g of activated white carbon black, and 0.2g of glycerin, poured into a kneader with a heating device, and mixed for 30 minutes under normal pressure at 60°C. Grind and disperse with a three-roll mill to make component A of the thixotrope.

[0047] The preparation method of the hydroxyl-terminated polyurethane toughening agent of the special polyurethane is as follows: add 100 g of polyether diol with an average molecular weight of 1200 Daltons and 7.2 g of toluene diisocyanate (TDI) in a flask, under normal pressure and 60 ° C. Under stirring, react for 30 minutes, then raise the temperature to 80° C. and stir, react for 4 hours, so t...

example 3

[0054] (1) Preparation of component A of thixotrope

[0055] 10g of bisphenol A type epoxy resin E44, 70g of bisphenol A type epoxy resin E51, 10g of hydroxyl-terminated polyurethane toughening agent for special polyurethane, 10g of ethylene glycol diglycidyl ether, 0.5g of silane coupling agent KH- 560, 25g of glass fibers with a length of 0.8mm, 10g of activated white carbon black, and 0.5g of glycerin are poured into a kneader with a heating device, and mixed for 30 minutes under normal pressure at 60°C. Grind and disperse with a three-roll mill to make component A of the thixotrope.

[0056] The preparation method of the hydroxyl-terminated polyurethane toughening agent of special polyurethane is as follows: add 100 g of polyether diol with an average molecular weight of 1200 and 7.2 g of toluene diisocyanate (TDI) in a flask, stir under normal pressure and 60 ° C, React for 30 minutes, then raise the temperature to 80° C. and stir, and react for 5 hours to make the molec...

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Abstract

The invention discloses thixotrope for a high-power wind turbine blade and a preparation method thereof. The thixotrope comprises the following components in parts by weight: epoxy resin, a hydroxyl end-capped polyurethane toughening agent for special polyurethane, a diluent, a coupling agent, glass fiber, a thixotropic agent and a thixotropic agent aid. The method comprises the following steps of: pouring into a kneading machine with a heating device, mixing, and grinding and dispersing with a three-roll grinder to obtain a thixotrope A component; pouring 40-60 parts of a polyurethane curing agent, 10-30 parts of a novel toughening agent curing agent, 5-15 parts of glass fiber, 5-15 parts of a thixotropic agent and 0.1-0.5 part of a thixotropic agent aid into the kneading machine with the heating device, mixing, and grinding and dispersing with the three-roll grinder to obtain a thixotrope B component; and mixing the component A and the component B in the weight ratio of 2:1 to obtain the thixotrope for the wind turbine blade. The thixotrope has high / low temperature impact resistance, the adaptive phase of the thixotrope is prolonged, and the requirements of technical performance and design on the manufacturing of a high-power wind turbine blade are met.

Description

technical field [0001] The invention relates to the field of organic polymer compounds, in particular to a thixotrope for high-power wind power blades and a preparation method thereof. Background technique [0002] In the new century, the world's economic and industrial structure is shifting towards an energy-saving, low-carbon, and green development model. In this historical transformation process, the development of the wind power industry is undoubtedly the most important "bright spot". Taking my country as an example, the capacity of wind power equipment in 2007 was only more than 2 million kilowatts, and the newly installed capacity in 2008 reached 12 million kilowatts. The demand will reach 25000 tons / year. As a key material for manufacturing wind turbine blades, the demand for thixotropic rubber for wind turbine blades is also increasing, and related research and development and production activities are also becoming increasingly active, becoming an important techni...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J163/02C09J175/08C09J177/00C09J11/04
Inventor 吴青韩俐伟田言霍力超刘晓冬聂玉梅苏仪华崔向红段百超
Owner 黑龙江省化工研究院有限责任公司
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