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Epoxy structure adhesive for rotor blades and preparation method thereof

A technology of epoxy structural glue and wind rotor blades, which is applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of high brittleness, severe curing heat release, and severe curing heat release of epoxy resin adhesive. Achieve the effects of low exothermic peak temperature, high toughness and long operating period

Inactive Publication Date: 2012-01-25
YANTAI DARBOND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some aspects of the performance of adhesive products in the domestic and foreign markets cannot meet the requirements of workability, for example, there are problems such as severe curing exotherm and high brittleness, because the toughening technology commonly used in the industry is modified from the matrix resin. Still increasing the use of difunctional reactive epoxy diluents did not fundamentally solve the problem of "staggered front" of curing exotherm. It was possible to improve the processing workability, but it failed to completely solve the curing exotherm of epoxy resin adhesives. severe and brittle problems; and at the same time as the toughening technology, how to solve the problem of smooth and uniform heat during the curing exothermic process without reducing its mechanical properties and heat resistance, so as to improve the processing workability of epoxy resin is the current problem. Problems to be solved in the industry

Method used

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  • Epoxy structure adhesive for rotor blades and preparation method thereof
  • Epoxy structure adhesive for rotor blades and preparation method thereof
  • Epoxy structure adhesive for rotor blades and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Accurately weigh the following raw materials, bisphenol A epoxy resin 58g, bisphenol F epoxy resin 10g, hyperbranched polyurethane acrylate CN968 5g, fumed silicon 12g, triphenylphosphine oxide 5g, 1,4- Butanediol diglycidyl ether 10g, the above-mentioned components are sequentially added into the dual planetary power mixing mixer, vacuumed to -0.1MPa, the rotation speed is 1000 revolutions per minute, and the revolution speed is 10 revolutions per minute. Stir for 1.5 hours to obtain component A, mix evenly to obtain component A of the epoxy resin adhesive, pack and place it for use; mix curing agents such as 3g of diethylenetriamine, 42g of isophoronediamine, 37g of polyetheramine, bis Mix 13g of (4-amino-3-methylcyclohexyl)methane and 5g of thixotropic agent such as fumed silicon evenly to obtain component B of the epoxy resin adhesive, which is packaged and placed for use.

[0030] The hyperbranched urethane acrylate is a highly branched three-dimensional dendritic ...

Embodiment 2

[0036] Accurately weigh the following raw materials, bisphenol A epoxy resin 50g, bisphenol F epoxy resin 10g, hyperbranched polyurethane acrylate CN968 10g, fumed silicon 18g, triphenylphosphine oxide 2g, 1,4-butyl Diol diglycidyl ether 10g, the above-mentioned components are sequentially added into the double planetary power mixing mixer, vacuumed to -0.1MPa, under the condition that the rotation speed is 1000 rpm and the revolution speed is 8 rpm, mechanically Stir for 2 hours to obtain component A, mix evenly to obtain component A of the epoxy resin adhesive, pack and place it for use; mix curing agents such as 3g of N-aminoethylpiperazine, 39g of isophoronediamine, polyetheramine 37g, 13g of bis(4-amino-3-methylcyclohexyl)methane, and 8g of a thixotropic agent such as fumed silicon are mixed evenly to obtain component B of the epoxy resin adhesive, which is packaged and placed for use.

[0037] When in use, mix the prepared component A and component B uniformly at a weight ...

Embodiment 3

[0039] Accurately weigh the following raw materials, bisphenol A epoxy resin 50g, bisphenol F epoxy resin 10g, hyperbranched polyurethane acrylate CN9006 2g, fumed silicon 23g, resorcinol 10.5g, 1,6-hexyl Diol diglycidyl ether 9.5g, add the above-mentioned components into the double planetary power mixing mixer in turn, vacuumize to -0.1MPa, under the condition that the rotation speed is 1000 rpm and the revolution speed is 10 rpm, Mechanically stirred for 2 hours to obtain component A, mixed evenly to obtain component A of the epoxy resin adhesive, packaged and placed for use; curing agents such as isophorone diamine 42g, polyetheramine 32g, bis(4-aminocyclic Hexyl)methane 7g, diaminodiphenylmethane 9g, and thixotropic agent such as fumed silicon 10g are mixed evenly to obtain the B component of the epoxy resin adhesive, which is packaged and placed for use.

[0040] When in use, mix the prepared component A and component B uniformly at a weight ratio of 100:49.5, cure at 68°...

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Abstract

The invention relates to an epoxy structure adhesive for rotor blades and a preparation method thereof. The epoxy structure adhesive for the rotor blades consists of a component A and a component B, of which the proportion by weight is 100:40.5 to 100:49.5; the component A consists of the following materials in percentage by weight: 50 to 68 percent of epoxy resin, 1 to 10 percent of hyperbranched polyurethane acrylate, 10 to 25 percent of thixotropic agent, 0.5 to 12.5 percent of additive and 2 to 10 percent of reactive diluent; the component B consists of the following materials in percentage by weight: 90 to 95 percent of curing agent and 5 to 10 percent of thixotropic agent; and the preparation method for the epoxy structure adhesive for the rotor blades includes the following steps: when in use, the component A and the component B, of which the proportion by weight is 100:40.5 to 100:49.5, are mixed and then are cured under the temperature of 60 DEG C to 70 DEG C for 7 to 10 hours to carry out polymerization reaction, and thereby the epoxy structure adhesive is prepared.

Description

technical field [0001] The invention relates to an epoxy structural adhesive used for wind rotor blades and a preparation method thereof, belonging to the field of epoxy resin adhesives. Background technique [0002] Wind energy is a kind of green energy sourced from nature, pollution-free, and the fastest growing in the world, which is highly valued by countries all over the world. my country is rich in wind energy resources and has great development potential. According to the 2006 National Development and Reform Commission revision of my country's wind power development planning goals, it will reach 30,000 MW in 2020, which is expected to surpass nuclear power and become the third largest main power generation source; in 2050, it may surpass hydropower and become the second largest main power generation source. At present, my country's wind power industry is in its infancy, and has the conditions for rapid development of the wind power industry, and a large number of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J175/16C09J163/02
Inventor 许愿王建斌解海华
Owner YANTAI DARBOND TECH
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