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Latent epoxy resin system for wind-driven generator blades and preparation method for latent epoxy resin system

An epoxy resin system, wind power generator technology, applied in the preparation of epoxy resin system, latent epoxy resin system, vacuum infusion process application field, can solve the inability to apply large-scale blade vacuum infusion process, compatibility and mutual synergy Insufficient performance, poor operability and other problems, to achieve the effect of improving international competitiveness, significant economic effect, and low operating environment temperature requirements

Inactive Publication Date: 2012-03-28
DONGFANG TURBINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the compatibility and mutual synergy between its components are not ideal, the gel time is still short, and it is not flexible enough. There is still a risk of impregnation in the vacuum infusion of leaves. The operability is poor, and it cannot be applied to the vacuum of large leaves. Infusion process use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] The product of the present invention is formed by mixing the resin part and the curing agent part.

[0051] Among them, the raw material ratio of the resin part is calculated according to the following parts by weight: bisphenol A type epoxy resin E-51—60 parts; bisphenol F type epoxy resin—10 parts; 1,6-hexanediol diglycidyl ether — 30 ​​servings.

[0052] The raw material ratio of the curing agent part is based on the following parts by weight: polyetheramine T403—65 parts; N-aminoethylpiperazine—10 parts; o-tolylbiguanide—10 parts; 1-methylimidazole—15 parts.

[0053] The preparation method of the present invention comprises the following steps:

[0054] (1) Prepare materials according to the above components and contents; and prepare the reaction kettle;

[0055] (2) Prepare the resin part and curing agent part separately

[0056] ① Preparation of the resin part: Add the raw materials of the resin part (ie epoxy resin and diluent) into the reaction kettle, contin...

Embodiment 2

[0061] The product of the present invention is formed by mixing the resin part and the curing agent part.

[0062] Wherein, the raw material ratio of the resin part is calculated according to the following parts by weight: bisphenol A epoxy resin E-54—95 parts; 1,4-butanediol diglycidyl ether—5 parts.

[0063] The raw material ratio of the curing agent is based on the following parts by weight: polyetheramine D230—40 parts; 1,3-bis(aminomethyl)cyclohexane—20 parts; phenyl biguanide—15 parts; 2-vinyl- 4-methylimidazole—15 parts; boron trichloride-n-octyldimethylamine complex—10 parts.

[0064] The preparation method of the present invention comprises the following steps:

[0065] (1) Prepare materials according to the above components and contents; and prepare the reaction kettle;

[0066] (2) Prepare the resin part and curing agent part separately

[0067] ① Preparation of the resin part: Add the raw materials of the resin part (ie epoxy resin and diluent) into the reaction...

Embodiment 3

[0072] The product of the present invention is formed by mixing the resin part and the curing agent part.

[0073] Wherein, the raw material ratio of the resin part is calculated according to the following parts by weight: bisphenol A epoxy resin E-44-65 parts; bisphenol F epoxy resin-30 parts; n-butyl glycidyl ether-5 parts.

[0074] The ratio of raw materials for the curing agent is based on the following parts by weight: polyetheramine D400—60 parts, polyetheramine D230—20 parts; isophorone diamine—15 parts; 1,3-biphenylguanidine—5 parts .

[0075] The preparation method of the present invention comprises the following steps:

[0076] (1) Prepare materials according to the above components and contents; and prepare the reaction kettle;

[0077] (2) Prepare the resin part and curing agent part separately

[0078] ① Preparation of the resin part: Add the raw materials of the resin part (namely epoxy resin and diluent) into the reaction kettle, continue to stir until the mi...

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Abstract

The invention discloses a latent epoxy resin system for wind-driven generator blades. The latent epoxy resin system is formed by combining a resin part and a curing agent part, wherein the resin part comprises bisphenol A epoxy resin and a diluent; and the curing agent part comprises a polyether amine compound, an alicyclic amine compound and an organic guanidine compound. The preparation method comprises the following steps of: (1) preparing materials in a ratio of the resin part to the curing agent part respectively and preparing mixing equipment; (2) preparing the resin part and the curing agent part respectively; and (3) preparing the latent epoxy resin system and mixing the prepared resin part and the prepared curing agent part in the ratio uniformly. The latent epoxy resin system has the characteristics of flexible gelation time, low requirement of the operating environment on the temperature, high operability and the like, the operability of the epoxy resin system is greatly improved when the epoxy resin system is applied to a blade vacuum perfusion process, the production efficiency and qualification rate of the blades are improved, and the production cost of enterprises is reduced.

Description

technical field [0001] The invention relates to an epoxy resin system, in particular to a latent epoxy resin system for wind generator blades, and a preparation method of the epoxy resin system. The epoxy resin system of the present invention is particularly suitable for the vacuum infusion process application in the manufacture of high-power wind power generator blades. Background technique [0002] As we all know, the key to obtain greater wind power is to have blades that can rotate briskly. Therefore, the blade is the core of the wind turbine, and the performance of the blade material is the key to determine the performance of the wind turbine. For a long time, the key technologies and materials of my country's wind power generation industry have been controlled by foreign countries, especially the resin system used in the production of blades, which makes my country's wind power generation companies have to rely on related large foreign companies to spend high prices f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G59/56
Inventor 杨红周百能李文可冯鹤卢毅钟连兵胡星肖毅
Owner DONGFANG TURBINE CO LTD
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