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High-strength low-odor two-component acrylate structural adhesive and preparation method thereof

An acrylate and acrylate technology, applied in the field of high-strength and low-odor two-component acrylate structural adhesive and its preparation, can solve the problems of reducing the adhesive strength of the colloid to plastic or metal, tackiness of the cured surface, etc. Adhesion, the effect of improving bond strength

Inactive Publication Date: 2020-01-31
重庆德天新材料科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, low-odor acrylate structural adhesives usually use long-chain monomers with large molecular weight or high-boiling low-volatility monomers to replace traditional volatile monomers. However, when low-volatile monomers are used as structural adhesive components, the colloid When curing, the cured surface will be sticky due to surface oxygen inhibition, which greatly reduces the bonding strength of the colloid to plastic or metal

Method used

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  • High-strength low-odor two-component acrylate structural adhesive and preparation method thereof
  • High-strength low-odor two-component acrylate structural adhesive and preparation method thereof
  • High-strength low-odor two-component acrylate structural adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The source of each raw material is as follows:

[0032] component name Grade Manufacturer Hydroxyethyl methacrylate American bagels Hydroxypropyl Methacrylate American bagels 2-Phenoxyethyl methacrylate Changxing Chemical epoxy acrylate 2261 Changxing Chemical urethane acrylate 6112-100 Changxing Chemical maleic acid aladdin polyacrylic resin Dongguan Sanqi Chemical ABS resin GP-35 BASF KH-570 Jianghan Fine Chemicals hydroquinone Tianjin Oubokai Chemical Cumene Hydroperoxide Shandong Gaoming Chemical Tetramethylthiourea Jiangxi Galaxy New Materials fumed silica ML-150 Cabot

[0033] The proportioning (parts by weight) of oxidizing component and reducing component is as follows:

[0034]

[0035]

[0036] Preparation of Oxygenated Components

[0037] Taking materials in proportion, hydroxyethyl methacrylate, hydroxypropyl methacrylate,...

Embodiment 2

[0043] The source of each raw material is as follows:

[0044]

[0045]

[0046] Wherein, the preparation method of the toughening agent is: take bisphenol A epoxy resin, carboxyl-terminated nitrile rubber (CTBN), after weighing by mass ratio 1:1, add 1% triphenylphosphine in nitrogen atmosphere 140 It can be obtained by reacting at ℃ for 2h.

[0047] The ratio of oxidizing component and reducing component is as follows:

[0048]

[0049]Preparation of Oxygenated Components

[0050] Taking materials in proportion, tetrahydrofurfuryl methacrylate, hydroxypropyl methacrylate (acrylate monomer) and epoxy acrylate, ABS resin, polyurethane acrylate, polyacrylic resin, toughening agent (toughening agent) Resin) into the planetary mixer, high-speed stirring until the toughening resin is completely dissolved, then add cumene hydroperoxide (initiator), fumed silica (thixotropic agent), hydroquinone (stabilizer) in sequence, and finally pump Vacuum defoaming to obtain oxidiz...

Embodiment 3

[0056] The source of each raw material is as follows:

[0057] component name Grade Manufacturer Isobornyl Methacrylate Changxing Chemical Hydroxyethyl methacrylate American bagels epoxy acrylate L-6135 Dongguan Sanqi Chemical urethane acrylate L-9601 Dongguan Sanqi Chemical Methacrylate Chongqing Chuandong Chemical polyester resin L-8466 Dongguan Sanqi Chemical Toughener self made ABS resin GP-35 BASF Modified KH-560 Jianghan Fine Chemicals Benzoquinone German cherry tert-butyl peroxybenzoate aladdin 808HP (aniline condensate) Shanghai Guangyi Chemical hydrogenated castor oil Dandong Jinhai Fine Chemical Co., Ltd. Copper acetylacetonate aladdin

[0058] Wherein, the preparation method of toughening agent is: take bisphenol A epoxy resin, carboxyl-terminated nitrile rubber (CTBN), after weighing by mass ratio 1:1, add 1% triphenylphosphine i...

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Abstract

The invention relates to a high-strength low-odor two-component acrylate structural adhesive, the high-strength low-odor two-component acrylate structural adhesive comprises an oxidation component anda reduction component which are independent to each other, wherein the oxidation component comprises an acrylate monomer, toughening resin, an initiator, a thixotropic agent and a coupling agent, andthe mass ratio of the acrylate monomer to the toughening resin to the initiator to the thixotropic agent to the coupling agent is (40-70): (5-15): (1-10): (1-5): (1-5), wherein the reduction component comprises an acrylate monomer, toughening resin, an accelerant, a thixotropic agent and a coupling agent, and the mass ratio of the acrylate monomer to the toughening resin to the accelerant to thethixotropic agent to the coupling agent is (50-70): (5-15): (1-10): (1-5): (1-5). By mixing the oxidation component and the reduction component according to a volume ratio or a mass ratio of 1: 1, thestructural adhesive is obtained. The structural adhesive disclosed by the invention has the advantages of low odor, high environmental friendliness, long single storage time of the oxidation component and the reduction component, high reaction rate, short positioning time, stable heat release, no air hole and the like after the oxidation component and the reduction component are mixed, the surface is not sticky, and the bonding strength to metal or plastic is high.

Description

technical field [0001] The invention relates to the field of adhesives, in particular to a high-strength and low-odor two-component acrylic structural adhesive and a preparation method thereof. Background technique [0002] Acrylic adhesives have the advantages of a wide range of bonding materials, high bonding strength, and low cost, and are widely used in various fields of national production. [0003] With the rapid development of new technologies such as new energy vehicles and artificial intelligence, the demand for bonding metals, plastics and composite materials is increasing. As a "universal" adhesive, the application prospects of acrylate structural adhesives very broad. However, most of the acrylic structural adhesives currently on the market are highly volatile monomers and have a strong and pungent smell, which seriously pollutes the environment and threatens human health. In response to this situation, acrylic structural adhesives with low odor, environmental ...

Claims

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Application Information

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IPC IPC(8): C09J155/02C09J163/10C09J175/14C09J11/04C09J11/06C09J11/08
CPCC08L2205/035C09J11/04C09J11/06C09J11/08C09J155/02C09J163/10C08L55/02C08L75/14C08K7/26C08L63/10
Inventor 罗登伟陈林项仕勇戴宏程
Owner 重庆德天新材料科技股份有限公司
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