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A kind of two-component acrylate adhesive and preparation method thereof

An acrylate and adhesive technology, applied in the direction of adhesives, polymer adhesive additives, non-polymer adhesive additives, etc. Excellent impact performance, improved construction efficiency, fast curing effect

Active Publication Date: 2017-01-11
GUANGDONG SANVO CHEM IND TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The traditional two-component acrylate adhesive technology, in order to pursue construction efficiency, is generally achieved by adjusting the curing speed of the adhesive. However, the rapid increase in the curing speed will lead to too fast and incomplete polymerization of the colloid, which has a greater impact on the bonding strength. Large damage, the final result is that the bonding requirements cannot be met, especially in the fields of mechanical maintenance and manufacturing, which will bring unpredictable quality and safety hazards to the entire product, and vice versa
[0004] In China, there are many studies on acrylate adhesives, such as the two-component acrylate structural adhesive and its preparation method with the patent application No. 200610124817.5, which mainly solves the poor water resistance of existing acrylate adhesives, especially the moisture and heat resistance. Poor problem; application number is 200910111171.0 high-temperature-resistant two-component acrylic adhesive and its preparation method, which contains a copolymer of heat-resistant acrylic monomer and high-temperature-resistant modified resin with a glass transition temperature above 50°C; application No. 201110416902.X is a high-temperature-resistant acrylate adhesive, which mainly solves the problem that the structure of the adhesive layer of the existing fast-curing acrylate structural adhesive is damaged after being baked at 180°C and cannot meet the structural bonding requirements; the application No. 201210478789.2 is an acrylic adhesive with high peel strength, which mainly solves the problem that the existing second-generation acrylic structural adhesive has poor toughness, but the peel strength is only 50-100N / 25mm
[0005] None of the above patents mentions the problem of solving the contradiction between fast curing speed and strength

Method used

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  • A kind of two-component acrylate adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Component A includes steps: put 50 parts of tetrahydrofuryl methacrylate and 20 parts of methacrylic acid into the reaction kettle according to the proportion by weight, start the machine and stir, put in 15 parts of polysulfone resin, 8 parts of thiourea, ethylenediaminetetra After dissolving 0.05 part of disodium acetate evenly, add 0.001 part of enhanced graphene and 2.999 parts of potassium titanate whiskers, and stir evenly to obtain component A.

[0041] Component B includes steps: put 75 parts of isobutyl methacrylate into the reaction kettle according to the ratio by weight, start the machine and stir, put in 30 parts of nitrile rubber, 0.01 part of organic bentonite, and 0.05 parts of disodium edetate 1. 0.05 part of p-benzoquinone, after dissolving evenly, add 1 part of cumene hydroperoxide, and stir evenly to obtain component B.

Embodiment 2

[0043] Component A includes steps: put 55 parts of hydroxyethyl methacrylate and 10 parts of methacrylic acid into the reaction kettle according to the proportion by weight, start the machine and stir, put in 5 parts of neoprene rubber, 5 parts of polyphenylene sulfide resin, After 1 part of triethanolamine and 0.08 part of hydroquinone are uniformly dissolved, 0.005 part of enhanced graphene and 2 parts of calcium carbonate whiskers are added and stirred evenly to obtain component A.

[0044] Component B includes steps: put 60 parts of allyl methacrylate and 5 parts of methacrylic acid into the reaction kettle according to the proportion by weight, start the machine and stir, put in 10 parts of neoprene rubber and 3 parts of polyphenylene sulfide resin , silica

[0045] 0.5 parts, 1 part of tetrasodium edetate, and 0.5 parts of hydroquinone, after dissolving evenly, add 5 parts of cumene hydrogen peroxide and stir evenly to obtain component B.

Embodiment 3

[0047] Component A includes steps: put 60 parts of methyl methacrylate and 5 parts of methacrylic acid into the reaction kettle according to the proportion by weight, start the machine and stir, and put 10 parts of styrene-ethylene-butylene-styrene block copolymer 1 part, 1 part of polysulfone resin, 5 parts of thiourea, 5 parts of triethylamine, 0.1 part of tetrasodium edetate, after dissolving evenly, add 0.005 part of enhanced graphene, 0.495 part of aluminum borate whisker, stir well , that is, A component.

[0048] Component B includes steps: put 50 parts of isooctyl methacrylate and 10 parts of methacrylic acid into the reaction kettle according to the proportion by weight, start the machine and stir, and put in styrene-ethylene-propylene-styrene block copolymer 1 part, 5 parts of polyphenylene sulfide resin, 1 part of silicon dioxide, 1.5 parts of tetrasodium edetate, 1.5 parts of hydroquinone, in p-benzoquinone, after dissolving evenly, put tert-butyl hydroperoxide 8 ...

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Abstract

The invention discloses a dual-component acrylate adhesive and a preparation method thereof. The dual-component acrylate adhesive comprises the following main components: a component A and a component B, wherein the component A comprises a methyl acrylate monomer, methacrylic acid, an elastomer, resin, a reinforcing agent, an accelerator and a stabilizer; and the component B comprises the methyl acrylate monomer, methacrylic acid, an elastomer, resin, a thixotropic agent, peroxide and a stabilizer. The dual-component acrylate adhesive has the following advantages that: 1, good toughness is achieved and since high-performance resin polysulfone resin or polyphenylene sulfide resin and elastomer are adopted as toughening materials, the obtained adhesive has good toughness and excellent impact resistance; 2. high strength is achieved, and by modifying by adding a mixture of novel material graphene and inorganic whiskers, the strength of the adhesive is significantly increased; 3. high curing speed is achieved and the efficiency of construction is effectively increased.

Description

technical field [0001] The invention relates to the technical field of polymer materials, in particular to a two-component acrylate adhesive with high strength and fast curing speed and a preparation method thereof. Background technique [0002] Two-component acrylate adhesive is a kind of adhesive composed of two components, which is cured by polymerization reaction under redox system. It has the characteristics of low volatility, high bonding strength, fast curing strength, wide range of bonding materials, and convenient use. [0003] With the continuous development of social economy, people have higher and higher requirements for the efficiency and performance of adhesives when using adhesives, especially in some occasions that require relatively high construction efficiency and strength. Fast speed and high strength can be guaranteed. The traditional two-component acrylate adhesive technology, in order to pursue construction efficiency, is generally achieved by adjusti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J4/02C09J11/04C09J11/06C09J11/08
Inventor 陈炳耀陈亮凌辉
Owner GUANGDONG SANVO CHEM IND TECH