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Preparation method of epoxy resin adhesive special for offshore wind power blades

A technology of epoxy resin glue and offshore wind power, applied in the direction of epoxy resin glue, adhesives, adhesive additives, etc., can solve the problems of adhesive strength decrease, wind turbine blade damage, and affect blade life, and achieve good weather resistance.

Inactive Publication Date: 2014-04-09
ALPHA ESS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This new type of material called Epoxide Resin can resist very well against moisture or temperature changes overseas without losing its effectiveness when used on other materials like rubber composites that are commonly found around them.

Problems solved by technology

This patented technical problem addressed in this patents relates to improving the durability of wind driven generator blinds used during prolonged exposure to harsh environmental conditions such as seawater or snow coverings over time due to high water pressure caused by weather changes. Current solutions involve adding stronger bond materials with better resistance against corrosion compared to traditional methods like epoxy resin systems that were previously developed but have been found unsuccessful when applied indoor under these challenges.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Step 1, take 6Kg of hydroxynitrile butadiene rubber, 5Kg of polysulfide rubber, and 30Kg of solvent, mix them evenly, and heat to 40°C to dissolve the rubber;

[0026] Step 2: Cool down the dissolved rubber obtained in Step 1 to 30°C, add 30Kg of epoxy resin, 4Kg of triethanolamine, 2Kg of tetraethoxysilane, 1Kg of tolylbisureidosilane, 2Kg of aluminum disulfide, and Methyl acrylate 4Kg, ethyl acetoacetate 2Kg, mix uniformly, obtain mixture I;

[0027] Step 3: Add 5Kg of fumed silica, 2Kg of zinc N,N-dibutylaminodithiocarbamate, and 4Kg of plasticizer to the mixture I, raise the temperature to 35°C, mix well, let it cool, and use it as Group A Minute;

[0028] Step 4: Take 10Kg of methylene dianiline, 2Kg of silane coupling agent, 1Kg of accelerator, and 15Kg of ethyl acetate, heat up to 35°C, mix well, let cool, and use it as component B.

[0029] Described epoxy resin is epoxy resin E-44, and solvent is xylene, and plasticizer is phthalate, and described silane coup...

Embodiment 2

[0032] Step 1, take 12Kg of hydroxynitrile butadiene rubber, 10Kg of polysulfide rubber, and 50Kg of solvent, mix well, and heat to 50°C to dissolve the rubber;

[0033] Step 2, cool down the dissolved rubber obtained in step 1 to 40°C, add 50Kg of epoxy resin, 8Kg of triethanolamine, 4Kg of tetraethoxysilane, 3Kg of tolyldiureidosilane, 4Kg of aluminum disulfide, 12Kg of methyl acrylate and 4Kg of ethyl acetoacetate were mixed uniformly to obtain mixture I;

[0034] Step 3: Add 15Kg of fumed silica, 4Kg of zinc N,N-dibutylaminodithiocarbamate, and 7Kg of plasticizer to the mixture I, raise the temperature to 45°C, mix well, let it cool, and use it as Group A Minute;

[0035] Step 4: Take 20Kg of methylene dianiline, 5Kg of silane coupling agent, 3Kg of accelerator, and 25Kg of ethyl acetate, heat up to 45°C, mix well, let cool, and use it as component B.

[0036] Described epoxy resin is epoxy resin E-44, and solvent is butyl acetate, and plasticizer is terephthalate, and d...

Embodiment 3

[0039] Step 1, take 8Kg of hydroxynitrile butadiene rubber, 8Kg of polysulfide rubber, and 39Kg of solvent, mix well, and heat to 45°C to dissolve the rubber;

[0040] Step 2, cool down the dissolved rubber obtained in step 1 to 35°C, add 40Kg of epoxy resin, 6Kg of triethanolamine, 3Kg of tetraethoxysilane, 2Kg of tolylbisureidosilane, 3Kg of aluminum disulfide, Methyl acrylate 6Kg, ethyl acetoacetate 3Kg, mix uniformly, obtain mixture I;

[0041] Step 3: Add 12Kg of fumed silica, 3Kg of zinc N,N-dibutylaminodithiocarbamate, and 5Kg of plasticizer to the mixture I, heat up to 40°C, mix well, let it cool, and use it as Group A Minute;

[0042] Step 4: Take 15Kg of methylene dianiline, 3Kg of silane coupling agent, 2Kg of accelerator, and 20Kg of ethyl acetate, heat up to 40°C, mix evenly, let cool, and use it as component B.

[0043] The epoxy resin is epoxy resin E-40, the solvent is methyl acetate, the plasticizer is isophthalate, the silane coupling agent is KH-550, and t...

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PUM

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Abstract

Belonging to the technical field of adhesives, the invention relates to a preparation method of an epoxy resin adhesive suitable for offshore wind power blades. The method includes the steps of: by weight part, mixing hydroxy nitrile rubber, polysulfide rubber and a solvent uniformly, and conducting heating to dissolve the rubber; cooling the dissolved rubber obtained in step 1, then adding epoxy resin, triethanolamine, tetraethoxysilane, methylphenyl bis-ureido silane, aluminium disulphide, polymethyl methacrylate and ethyl acetoacetate in order, mixing them evenly to obtain a mixture I; then adding fumed silica, N, N-dibutyl dithiocarbamic acid zinc, and a plasticizer into the mixture I, and performing heating, uniform mixing and cooling to the mixture so as to obtain a first component; taking methylene diphenylamine, a silane coupling agent, a promoter and ethyl acetate, conducting heating, mixing them uniformly, and cooling the mixture to obtain a second component. The epoxy resin adhesive provided by the invention has good weather resistance to hot and humid conditions, salt fog conditions and the like on the sea, and is suitable for application in epoxy resin based wind power blades.

Description

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Claims

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Application Information

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Owner ALPHA ESS CO LTD
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