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Anaerobic adhesive for surface bonding of inert metal

An inert metal and anaerobic adhesive technology, applied in the field of anaerobic adhesives, can solve problems such as affecting work efficiency, polluting the atmosphere, and low strength, and achieve the effects of improving work efficiency, avoiding threats, and high bond strength

Active Publication Date: 2014-04-16
山东禹王和天下新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For some inert metals, such as common stainless steel, galvanized parts, chrome-plated parts, cadmium-plated parts and other inert metals, using traditional anaerobic adhesives to bond these inert metals will cause problems such as slow curing speed and affecting work efficiency. ; Moreover, the strength after curing is low, which affects the reliability of the workpiece and causes potential safety hazards
At present, the most commonly used acceleration method is to use a primer (such as Loctite 7649) to treat the surface and then use anaerobic adhesive for bonding. This will add an additional process, and the solvent in the primer will affect the health of workers and pollute atmosphere

Method used

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  • Anaerobic adhesive for surface bonding of inert metal
  • Anaerobic adhesive for surface bonding of inert metal
  • Anaerobic adhesive for surface bonding of inert metal

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preparation example Construction

[0023] Above-mentioned anaerobic glue is prepared according to the following preparation method, comprises the following steps:

[0024] A. Add the acrylate oligomer, acrylate monomer and chelating agent weighed in parts by weight into the reaction flask, and stir at 20-40°C;

[0025] B. Add the accelerator, co-accelerator, polymerization inhibitor, lubricant and thickener weighed in parts by weight to the solution in step A and stir evenly;

[0026] C. Add the initiator weighed in parts by weight to the solution in step B, stir and discharge below 35°C.

[0027] In the present invention, preferably, 0.01-1 part of dye can be added to the anaerobic adhesive. In the present invention, the acrylate oligomer is bisphenol A epoxy acrylate, bisphenol A epoxy methacrylate, propylene glycol adipate polyester acrylate, propylene glycol adipate polyester methacrylate , one or more of urethane acrylate and urethane methacrylate. The acrylate monomer is hydroxyethyl methacrylate, hydr...

Embodiment 1

[0029] A kind of anaerobic glue that is used for inert metal surface bonding, the proportioning of parts by weight of described composition is as follows:

[0030]

[0031] The preparation method is to add bisphenol A epoxy acrylate, isobornyl acrylate and disodium ethylenediaminetetraacetic acid into a reaction bottle according to the parts by weight of the above components, and stir at 20° C. for 1.5 hours; then Add acetophenhydrazine, o-sulfanilimide, N,N-dimethyl-p-toluidine, polytetrafluoroethylene wax, glycerin, fast red, p-benzoquinone and fumed silica, stir at high speed until completely dissolved ; Add cumene hydroperoxide at a temperature of 34°C and stir for 1.5 hours. The output is placed in a low-density polyethylene bottle.

Embodiment 2

[0033] A kind of anaerobic glue that is used for inert metal surface bonding, the proportioning of parts by weight of described composition is as follows:

[0034]

[0035]

[0036] The preparation method is to add propylene glycol adipate polyester acrylate, hydroxypropyl methacrylate and tetrasodium ethylenediaminetetraacetic acid into a reaction bottle according to the parts by weight of the above components, and stir at 40°C for 1.5 Add benzoyl hydrazide, o-sulfanyl benzimide, N,N-dimethyl-p-toluidine, polyethylene wax, glycerin, fast red, p-benzoquinone and fumed silica, and stir at high speed until Dissolve completely; then add benzoyl peroxide at 30°C, stir for 1.5 hours, discharge, and place in a low-density polyethylene bottle.

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Abstract

The invention discloses an anaerobic adhesive for surface bonding of an inert metal. A preparation method comprises the following steps: firstly, adding an acrylate oligomer, an acrylate monomer and a chelating agent which are weighed according to weight part into a reaction flask; stirring at 20 DEG C to 40 DEG C; adding an accelerant, a cure activating agent, a polymerization inhibitor, a lubricant and a thickening agent which are weighed according to weight part into a solution; evenly stirring; and finally, adding an initiating agent which is weighed according to weight part into the solution, stirring at 35 DEG C and discharging. The anaerobic adhesive has the beneficial effects that the inert metal can be rapidly cured at a normal temperature without being treated by a primer coating; the anaerobic adhesive has the high bonding strength. Thus, the work efficiency and the safe reliability of a workpiece are improved; meanwhile, the threat of the primer coating on the health of a worker and the pollution of the primer coating on atmosphere are avoided.

Description

technical field [0001] The invention relates to an anaerobic adhesive for industrial use, more precisely, relates to an anaerobic adhesive for surface bonding of inert metals at room temperature and without primer treatment. Background technique [0002] Anaerobic adhesives are widely used in metal thread locking, pipe sealing, cylinder holding, flat sealing and flat bonding in industry. For some inert metals, such as common stainless steel, galvanized parts, chrome-plated parts, cadmium-plated parts and other inert metals, using traditional anaerobic adhesives to bond these inert metals will cause problems such as slow curing speed and affecting work efficiency. ; Moreover, the strength after curing is low, which affects the reliability of the workpiece and causes potential safety hazards. At present, the most commonly used acceleration method is to use a primer (such as Loctite 7649) to treat the surface and then use anaerobic adhesive for bonding. This will add an extra ...

Claims

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Application Information

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IPC IPC(8): C09J163/10C09J167/06C09J175/14C09J11/04C09J11/06C09J11/08
Inventor 王彩华甄广亮王清慧
Owner 山东禹王和天下新材料有限公司
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