High-hardness polishable acrylate two-component structural adhesive for repairing and preparation method of high-hardness polishable acrylic acid two-component structural adhesive

A two-component, structural adhesive technology, applied in the direction of acrylonitrile butadiene styrene polymer adhesives, adhesives, conjugated diene adhesives, etc., can solve the problems of poor hardness and fluidity, unfavorable wear parts repair and Grinding, poor bonding performance, etc.

Inactive Publication Date: 2021-09-10
LUDONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In addition to metal, a large number of plastic products are used in automobile parts. When these plastics are worn, epoxy glue has poor adhesion to plastics, while...

Method used

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  • High-hardness polishable acrylate two-component structural adhesive for repairing and preparation method of high-hardness polishable acrylic acid two-component structural adhesive
  • High-hardness polishable acrylate two-component structural adhesive for repairing and preparation method of high-hardness polishable acrylic acid two-component structural adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A component weighs raw materials according to the following parts by mass

[0029]

[0030] (1) Stir methoxymethyl methacrylate and prepolymer with 600rpm / min in a stirrer for 30min;

[0031] (2) Put the ABS into the mixer slowly, and stir at a high speed of 800rpm / min for 2 hours until it is completely dissolved;

[0032] (3) Add γ-methacryloxypropyltrimethoxysilane and 2,6-di-tert-butyl-4-methylphenol, and stir at 600rpm / min for 30min;

[0033] (4) Cool down to below 35°C;

[0034] (5) Add N,N-dimethyl-p-phenylenediamine, control the temperature below 35°C and stir at 600rpm / min;

[0035] (6) Add fumed silica at 600rpm / min and stir for 30min to obtain component A

[0036] B component weighs raw materials according to the following parts by mass

[0037]

[0038] (1) Methyl methacrylate and prepolymer were stirred at 600rpm / min in a stirrer for 30min;

[0039] (2) Slowly put the elastomer into the mixer, and stir at a high speed of 800rpm / min for 2h until it...

Embodiment 2

[0043] Embodiment 2 of the present invention provides a methacrylate-based structural adhesive, and its specific implementation method is the same as that of Embodiment 1, except that epoxy acrylate is replaced by polyurethane acrylate.

Embodiment 3

[0045] Embodiment 3 of the present invention provides a methacrylate structural adhesive, and its specific implementation method is the same as that of Embodiment 1, except that ABS is replaced by chlorosulfonated polyethylene.

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PUM

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Abstract

The invention discloses a high-hardness polishable acrylate two-component structural adhesive for repairing and a preparation method thereof, and relates to the technical field of structural adhesives, in particular to the high-hardness polishable acrylate two-component structural adhesive for repairing and the preparation method of the high-hardness polishable acrylate two-component structural adhesive. The invention provides a methacrylate structural adhesive on the first aspect. The methacrylate structural adhesive comprises a component A and a component B, wherein the component A comprises methoxymethyl methacrylate, a prepolymer, an elastomer, an aniline substance, a stabilizer, a coupling agent and fumed silica; and the component B comprises tetrahydrofurfuryl methacrylate, a prepolymer, an elastomer, peroxide, a stabilizer and a coupling agent. The methacrylate structural adhesive disclosed by the invention is good in hardness, good in adhesive force, capable of being polished, low in odor, relatively good in storage performance and beneficial to prolonging the storage life of the structural adhesive; the structural adhesive is relatively good in water resistance, so that the service life of the structural adhesive is prolonged.

Description

technical field [0001] The invention belongs to the field of structural adhesives, in particular to a high-hardness polishable acrylic two-component structural adhesive for repair and a preparation method thereof Background technique [0002] Acrylic structural adhesive has the characteristics of fast curing speed and high strength. It can be cured in 5 minutes and reach 80% strength in 30 minutes. Moreover, it has good bonding performance between metal and plastic stool materials; it is widely used in automobiles, motorcycles, chemicals, machinery, resin crafts, Christmas gifts, plastic toys, ceramics, furniture, iron, stainless steel, and wood. bonding. [0003] In addition to metal, a large number of plastic products are used in automobile parts. When these plastics are worn, epoxy glue has poor adhesion to plastics, while ordinary acrylic structural adhesives have good adhesion to plastics. However, its hardness is poor and it has fluidity, which is not conducive to th...

Claims

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Application Information

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IPC IPC(8): C09J163/10C09J175/14C09J155/02C09J123/34C09J109/02C09J11/06C09J11/04
CPCC09J163/10C09J175/14C09J11/06C09J11/04C08L55/02C08K5/18C08K5/13C08K5/5425C08K7/26C08K13/04C08L23/34C08L9/02C08K5/544
Inventor 卢永春徐胜广陈孟齐鲁耘熙秦毅刘函睿张玉颖王族闽李丹阳司南钟振珲
Owner LUDONG UNIVERSITY
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