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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 of epoxy resin adhesive, and severe curing heat release, etc. To achieve the effect of changing the brittleness, prolonging the curing time and increasing the cross-linking density

Inactive Publication Date: 2013-11-06
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: 58 g of bisphenol A epoxy resin, 10 g of bisphenol F epoxy resin, 9685 g of hyperbranched urethane acrylate, 12 g of fumed silicon, 5 g of triphenyl phosphorus oxide, 1,4-butane Glycol diglycidyl ether 10g, the above components are added into the double planetary power mixing mixer in turn, vacuumed to -0.1MPa, the rotation speed is 1000 rev / min, the revolution speed is 10 rev / min under the condition, mechanical stirring 1.5 hours to obtain component A, mix evenly to obtain component A of the epoxy resin adhesive, package and set aside for use; curing agents such as diethylenetriamine 3g, isophorone diamine 42g, polyetheramine 37g, bis( 13 g of 4-amino-3-methylcyclohexyl) methane, and 5 g of a thixotropic agent such as fumed silica are mixed evenly to obtain the B component of the epoxy resin adhesive, which is packaged and placed for use.

[0030] The hyperbranched urethane acrylate is a dendritic polymer with a highly bran...

Embodiment 2

[0036]Accurately weigh the following raw materials, 50 g of bisphenol A epoxy resin, 10 g of bisphenol F epoxy resin, 10 g of hyperbranched urethane acrylate CN9688, 18 g of fumed silicon, 2 g of triphenyl phosphorus oxide, 1,4-butanedi 10 g of alcohol diglycidyl ether, the above components are added into the double planetary power mixing mixer in turn, vacuumed to -0.1MPa, under the condition that the rotation speed is 1000 rev / min and the revolution speed is 8 rev / min, mechanically stir 2 hours to obtain component A, mix evenly to obtain component A of the epoxy resin adhesive, package and place for use; curing agents such as N-aminoethylpiperazine 3g, isophorone diamine 39g, polyetheramine 37g , 13g of bis(4-amino-3-methylcyclohexyl) methane, and 8g of thixotropic agent such as fumed silica are mixed evenly to obtain the B component of the epoxy resin adhesive, which is packaged and placed for use.

[0037] When in use, the prepared A component and B component are mixed uni...

Embodiment 3

[0039] Accurately weigh the following raw materials: 50g of bisphenol A epoxy resin, 10g of bisphenol F epoxy resin, 62g of hyperbranched urethane acrylate CN90062g, 23g of fumed silicon, 10.5g of resorcinol, 1,6-hexanediol 9.5g of alcohol diglycidyl ether, the above components were added to the double planetary power mixing mixer in turn, vacuumed to -0.1MPa, under the condition that the rotation speed was 1000 rev / min and the revolution speed was 10 rev / min, the mechanical Stir for 2 hours to obtain component A, mix evenly to obtain component A of the epoxy resin adhesive, package and place for use; curing agents such as isophorone diamine 42g, polyetheramine 32g, bis(4-aminocyclohexyl ) 7 g of methane, 9 g of diaminodiphenylmethane, and 10 g of a thixotropic agent such as fumed silicon are mixed evenly to obtain the B component of the epoxy resin adhesive, which is packaged and placed for use.

[0040] When in use, the prepared A component and B component are mixed uniforml...

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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 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 natural, pollution-free, green energy that grows the fastest in the world, and is highly valued by countries all over the world. my country is rich in wind energy resources and has huge development potential. According to my country's wind power development planning goals revised by the National Development and Reform Commission in 2006, it will reach 30,000 MW in 2020, and is expected to surpass nuclear power to become the third major power generation source; in 2050, it may surpass hydropower and become the second major power generation source. At present, my country's wind power industry is in its infancy, and it has the conditions for rapid development of the wind power industry, and a large number of enterprises that manufacture wind tu...

Claims

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Application Information

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Patent Type & Authority Patents(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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