Double-component crylic acid adhesive and preparation method thereof

An acrylic, two-component technology, used in adhesives, adhesive additives, polymer adhesive additives, etc., can solve the problems of insufficient bonding strength, low activity, affecting curing speed, etc., to achieve good formability, high touch changing effect

Inactive Publication Date: 2017-05-10
YANTAI SEAYU NEW MATERIALS CORP LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many companies began to use low-odor monomers to replace methyl methacrylate, but low-odor monomers have a large molecular weight and low activity, which affects the curing speed, resulting in poor surface dryness and even sticky surfaces, especially when a certain gap is required In the case of sizing, the acrylate structural adhesive needs to overcome the effect of oxygen-rich steric oxygen inhibition, resulting in slow complete curing and insufficient bonding strength

Method used

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  • Double-component crylic acid adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Example 1. Preparation of component A: 30g of methyl methacrylate, 10g of hydroxyethyl methacrylate, 10g of methacrylic acid, 8g of trimethylolpropane trimethacrylate, 15g of ABS resin, and 13g of neoprene After mixing, put it into the reaction kettle and stir for 3 hours at 20~30°C to dissolve completely and become a uniform liquid, then add 0.2g of hydroquinone, 1.5g of EDTA-Na, 3g of N,N dimethyl p-toluidine Stir for 1 hour, add 2 g of gas-phase silicon, 1.2 g of zinc dimethacrylate, stir for 30 minutes, and vacuumize for 1 hour to obtain component A;

[0030] Preparation of component B: put 30g of epoxy resin, 10g of cumene hydroperoxide, and 30g of dioctyl adipate into the reaction kettle in proportion and stir for 2 hours at 20~30°C to make it completely mixed evenly, and then add it into the gas phase 2 g of silicon and 0.2 g of naphthoquinone were stirred for 1 hour and vacuumized for 1 hour to obtain component B.

Embodiment 2

[0031] Example 2. Preparation of component A: Mix 15g of methyl methacrylate, 18g of tetrahydrofuran methacrylate, 10g of methacrylic acid, 8g of trimethylolpropane triacrylate, 15g of ABS resin, and 13g of hydroxyl-terminated liquid rubber , put into the reaction kettle and stir at 20~30°C for 3 hours to dissolve completely and become a uniform liquid, then add 0.2g of p-benzoquinone, 2g of EDTA-Na, 2g of N,N dihydroxyethyl-p-toluidine and stir for 1 hour, Add 1.2g of zinc dimethacrylate, add 3.4g of fumed silicon, stir for 30 minutes, and vacuumize for 1 hour to obtain component A;

[0032] Preparation of component B: Put 30g of bisphenol A epoxy resin, 30g of benzoyl peroxide, and 30g of dibutyl phthalate into the reaction kettle in proportion and stir for 4 hours at 20~30°C to make it completely mixed. Add 1.5 g of fumed silicon, 0.5 g of dye blue, and 0.2 g of naphthoquinone, stir for 1 hour, and vacuumize for 1 hour to obtain component B.

Embodiment 3

[0033] Example 3. Preparation of component A: 10 g of methyl methacrylate, 15 g of isobornyl acrylate, 10 g of methacrylic acid, 8 g of trimethylolpropane trimethacrylate, 15 g of SBS resin, and carboxyl-terminated nitrile butadiene liquid rubber After mixing 20g, put it into the reaction kettle and stir for 3 hours at 20~30°C to dissolve completely and become a uniform liquid, then add 0.1g of 2,6-di-tert-butyl-4-methylphenol and 1.5g of EDTA-Na in sequence , 3 g of triethylamine was stirred for 1 hour, 1.5 g of zinc methacrylate and 4 g of fumed silicon were added, stirred for 30 minutes, and vacuumized for 1 hour to obtain component A;

[0034] Preparation of component B: Put 30g of bisphenol F epoxy resin, 20g of benzoyl peroxide, 10g of cumene hydroperoxide, and 20g of dibutyl phthalate into the reaction kettle in proportion and stir at 20~30°C After 2 hours, make the mixture completely uniform, add 2 g of fumed silicon, 0.2 g of hydroquinone, stir for 1 hour, and vacuumi...

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Abstract

The invention relates to a double-component crylic acid adhesive and a preparation method thereof. The double-component crylic acid adhesive consists of a component A and a component B in a volume ratio of 10:1, wherein the component A consists of the following raw materials in percentage by weight: 30-60% of an acrylic ester monomer, 10-30% of an active group toughening agent, 0.1-5% of a stabilizer, 0.1-5% of a reducing agent and 0.1-6% of an acceleration promoter; the component B consists of the following raw materials in percentage by weight: 10-40% of epoxy resin, 20-50% of a plasticizer, 10-30% of an oxidant and 0.1-10% of aids. The double-component crylic acid adhesive provided by the invention can be rapidly and completely cured, the cross-linking density and hardness can be improved, and the purposes of good surface dry and high adhesion strength can be achieved.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a two-component acrylic adhesive with good surface-drying effect and bonding strength under large gaps and a preparation method. Background technique [0002] Acrylic structural adhesives are widely used in aviation, automobiles, machinery, electronics, electrical instruments, railway transportation and notebook casings due to their rapid curing at room temperature, high strength, good toughness, strong adaptability to oil surface bonding, and easy process operation. And mobile phone casing and other industries. However, with the progress of the times and the development of the electronic industry, the continuous improvement of policies and regulations, and the continuous improvement of consumers' requirements for products, acrylic structural adhesives have a strong pungent smell and are rejected by many factories because they contain a large amount of methyl methac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/04C09J11/06C09J11/08
CPCC09J4/06C09J11/04C09J11/06C09J11/08
Inventor 郝祥清李峰贺国新杨囡囡张利文
Owner YANTAI SEAYU NEW MATERIALS CORP LTD
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