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Bi-component acrylic ester structure adhesive and preparation method thereof

A technology of structural adhesives and acrylates, applied in adhesives, non-polymer organic compound adhesives, etc., can solve the problems of slow initial fixation speed and fast curing speed, and achieve wide application range, low cost, and high technology simple effect

Inactive Publication Date: 2012-10-24
HB FULLER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention mainly solves the problems of the existing two-component acrylate adhesives, such as slow initial fixation speed and fast curing speed after two-component mixing.

Method used

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  • Bi-component acrylic ester structure adhesive and preparation method thereof
  • Bi-component acrylic ester structure adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Mix 20g of 1,6-hexanediol diacrylate, 20g of acryloyl morpholine, 40g of polyurethane prepolymer, and 3g of methacrylic acid, put them into the reaction kettle and stir at 62°C for 14 hours to make it a uniform liquid. When returning to room temperature, add 5 g of γ-methacryloxypropyltrimethoxysilane, 1.5 g of N,N-dimethyl-p-toluidine, and 2 g of cumene hydroperoxide, and stir for 9 hours to obtain the main ingredient.

[0013] Put 2.1g of cobalt isooctanoate or 7.4g of bisphenol A type epoxy resin into the reactor, stir at normal temperature for 1.2 hours, drop into 2.1g of vanadium pentoxide salt, and continue to stir for 2 hours to obtain the accelerator;

[0014] Put 60g of methyl methacrylate, 25g of ethylene propylene rubber, 10g of ABS, and 25g of polyurethane prepolymer into the reaction kettle and stir at 63°C for 11 hours to make it a uniform liquid, then return to room temperature and add 1.5g of the accelerator prepared above , aluminum hydroxide 10g, stirr...

Embodiment 2

[0016] Mix 10g of methyl methacrylate, 20g of acryloyl morpholine, 15g of N-methylolacrylamide, 10g of ABS, 20g of polyurethane prepolymer, and 15g of methacrylic acid, put them into a reaction kettle and stir at 68°C for 11 hours to make It becomes a uniform liquid, and when the temperature returns to room temperature, add 8 g of γ-methacryloxypropyltrimethoxysilane, 1.2 g of N, N-dimethyl-p-toluidine, and 1 g of cumene hydroperoxide, and stir for 8.1 h , to get the main agent.

[0017] Put bisphenol A type epoxy resin 7.3 into the reaction kettle, stir at normal temperature for 1.1 hours, drop into 2.7g of vanadium pentoxide salt, and continue to stir for 2 hours to obtain an accelerator; 68g of methyl methacrylate, ethylene-propylene rubber Put 28g of polyurethane prepolymer and 15g of polyurethane prepolymer into the reaction kettle and stir at 67°C for 13 hours to make it a uniform liquid. Return to room temperature and add 1.5g of accelerator obtained in the above proces...

Embodiment 3

[0019] Mix 20g of acryloylmorpholine, 20g of N-methylolacrylamide, 10g of PMMA, 40g of polyurethane prepolymer, and 3g of methacrylic acid, put them into the reaction kettle and stir at 63°C for 7.4 hours to make it a uniform liquid, and the temperature is restored When it reaches room temperature, add 5 g of γ-methacryloxypropyltrimethoxysilane, 1.5 g of N,N-dimethyl-p-toluidine, and 1.5 g of cumene hydroperoxide, and stir for 6.9 hours to obtain the main ingredient.

[0020] Put 60g of methyl methacrylate, 27g of ABS, and 5g of polyurethane prepolymer into the reaction kettle and stir at 63.5°C for 7.2 hours to make it a uniform liquid. After returning to room temperature, add 2g of vanadium pentoxide in proportion, and stir for 6.5h to obtain Hardener.

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Abstract

The invention discloses a bi-component acrylic ester structure adhesive and a preparation method thereof. According to the invention, a monomer, an elastomer, toughening resin, a polyurethane prepolymer, and methacrylic acid are added into a reaction vessel, such that a uniform liquid can be obtained in the reaction vessel; gamma-methacryloyloxy trimethoxy silane, N,N-dimethyl-p-toluidine, and a peroxide are added to the liquid; the mixture is stirred, such that a main agent is obtained. When a promoting agent comprises two components, biphenyl-A epoxy resin is added into a reaction vessel; the mixture is stirred under normal temperature; vanadium salt is added, and stirring is continued, such that the promoting agent is prepared. A monomer, toughening resin, an elastomer, and a polyurethane prepolymer are added into a reaction vessel, and are stirred, such that a uniform liquid is obtained; the promoting agent and an inorganic filling material are added to the liquid, and the mixture is stirred, such that a curing agent is obtained. The adhesive is advantaged in fast heating positioning. When the adhesive is mixed, a storage life of the adhesive under normal temperature is long, adhesive application is convenient, and a shear strength is high.

Description

technical field [0001] The invention belongs to the technical field of acrylate structural adhesives, in particular to a two-component acrylate structural adhesive and a preparation method thereof Background technique [0002] Due to the remarkable characteristics of rapid curing at room temperature, high strength, high toughness and impact resistance, fast-curing acrylate adhesives are widely used in the structural bonding of aviation, aerospace, automobile, machinery, electronics, electrical appliances and other industries. Small parts assembly, large parts assembly and plugging repair, etc. It has also been well applied in some high-end technologies. [0003] The current curing method of two-component acrylate adhesives usually first fixes the glue at a certain temperature, and then heats it at room temperature for 24 hours or at 60-80°C for 20-30 minutes to achieve complete curing. When the glue is initially fixed, it is necessary to apply a certain pressure to the cor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06
Inventor 史富永
Owner HB FULLER CO
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