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Quick epoxy structure adhesive and preparation method thereof

A technology of structural adhesives and adhesives, applied in the field of repair and repair, can solve the problems of inability to apply fast bonding positioning, operator resistance, and inability to meet the special requirements of blade glue, and achieve excellent constructability , short operating time, shortening the production process cycle effect

Active Publication Date: 2015-11-04
NEW UNITED GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent "200410022810.3-Quick-curing two-component epoxy adhesive and preparation method" has a gel time of only 3-8 minutes at room temperature, and reaches 6.7-11MPa after 30 minutes. ) is relatively low; both components are liquid series, which cannot meet the special requirements of blade glue; mercapto compounds are irritating to a certain extent, and operators will have resistance during construction
The patent "201110431154.2-a high-strength wind energy blade bonding structural adhesive" has good performance data required by the blade, but the curing condition is room temperature curing 4h-24h+70℃*7h, which belongs to the slow-speed mold clamping adhesive system and cannot Applied to occasions requiring fast bonding and positioning

Method used

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  • Quick epoxy structure adhesive and preparation method thereof
  • Quick epoxy structure adhesive and preparation method thereof
  • Quick epoxy structure adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0025] A kind of preparation method of fast epoxy structure adhesive, this preparation method comprises the steps:

[0026] (1) Formulation preparation

[0027] In terms of parts by mass, prepare the formula for component A: 75 parts of epoxy resin mixture E51, 15 parts of NPEF-170; 5 parts of toughening agent M20; 5 parts of reactive diluent AGE500; 2 parts of first coupling agent KH560; 1 part of defoamer A530; 8 parts of filler nano-calcium carbonate, 6 parts of fiber powder (glass fiber and boron fiber are mixed according to the mass ratio of 1:1); 2 parts of thixotropic agent bentonite, 8 parts of white carbon black, BYK605 0.8 parts; color paste: 0.1 parts;

[0028] The formula of component B: polyether amine T-403 7 parts; modified fatty amine T-28 8 parts, 615 5 parts; tertiary amine accelerator DMP-20 3 parts; Mannich reaction series polyamine T31 20 2 parts; 2 parts of the second coupling agent KH550; filler: 4 parts of gypsum powder, 4 parts of fiber powder (glass...

Embodiment 2

[0035] A kind of preparation method of fast epoxy structure adhesive, this preparation method comprises the steps:

[0036] (1) Formulation preparation

[0037] In terms of parts by mass, prepare the formula for component A: 80 parts of epoxy resin mixture E54, 10 parts of NPEF-170; 6 parts of toughening agent SL-3402; 8 parts of reactive diluent BGE501; 1.5 parts of first coupling agent KH560 0.8 parts of defoamer 066N; 7 parts of filler zinc oxide, 4 parts of fiber powder (glass fiber and boron fiber are mixed according to the mass ratio of 1:1), 2 parts of calcium sulfate whiskers; 2.5 parts of thixotropic agent bentonite, 7 parts of white carbon black, 1 part of BYK-E410; color paste: 0.1 part;

[0038] The formula of component B: polyether amine T-5000 8 parts; modified fatty amine T-30 7 parts, 615LC 13 parts; tertiary amine accelerator DMP-30 2 parts; Mannich reaction series polyamine TZ500 21 1.5 parts of the second coupling agent KH550; 4.5 parts of filler alumina, ...

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Abstract

The invention relates to a quick epoxy structure adhesive and a preparation method thereof. The adhesive adopts a two-component epoxy resin system, and a component A comprises an epoxy resin mixture, a flexibilizer, a thinner, a coupling reagent, a defoaming agent, filler, a thixotropic agent and color paste. A component B comprises polyether amine, aromatic amine, polyamine of a mannich reaction, a coupling reagent, filler, a thixotropic agent and color paste. Gelation time of the adhesive prepared through the technical scheme at the room temperature is 30 min, and the adhesive can be ground after 1 h. When the adhesive is operated at the temperature over 30 DEG C, and gelation time is 25 min. The shearing strength of an adhesive layer which is 0.5 mm thick is 35.54 MPa under room temperature conditions. Tg is 87 DEG C, the thixotropic property is good, the adhesive layer, which is 0.5 mm thick, of a vertical face does not flow when hung, good state maintaining performance is achieved, constructability is excellent, and the adhesive can be widely used in the adhesion field of quick structural components and the repair and patching field of parts.

Description

technical field [0001] The invention relates to the technical field of fast bonding applied to large structural parts and repairing of small and medium parts, in particular to a fast epoxy structural adhesive and a preparation method thereof. Background technique [0002] FRP composite material is a new type of material with glass fiber reinforced epoxy resin as the main structure. It is widely used in the wind power industry. Oxygen structural adhesives are favored by the wind power industry. Since the adhesive used in the leaves is mainly used in the mold-closing process of the two valves, the image of the adhesive used in the leaves is called "mold-closing glue" in the industry. In addition to the mold-closing glue used in the mold-closing process, the mold-closing glue is used to install the rib positioning block, rib, rib angle plate, large plate, rain cover, etc. It is also widely used to reinforce the front and rear edge flanging, and some Instead of putty, it is us...

Claims

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Application Information

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IPC IPC(8): C09J163/00C09J175/04C09J11/06C09J11/04
Inventor 王二平徐建东金诚黄礼平
Owner NEW UNITED GROUP
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