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Ultraviolet curing adhesive with low surface viscosity and preparation method thereof

A technology of ultraviolet light and curing glue, applied in the direction of non-polymer organic compound adhesives, adhesives, adhesive additives, etc., can solve the problem of affecting the hardness, gloss and abrasion resistance of the coating film, high free radical activity, coating film Surface stickiness and other problems, to improve the use value, enhance the mechanical properties, improve the effect of surface stickiness

Pending Publication Date: 2021-11-30
长春艾德斯新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention aims to solve the problem of high free radical activity, easy oxidation, and oxygen inhibition of free radical UV curing adhesives, which will cause stickiness on the surface of the coating film, and then affect the hardness, gloss and wear resistance of the coating film. , provides a UV-curable adhesive with low surface viscosity, the UV-curable adhesive is prepared from the following raw materials in mass fractions: 20%-85% of matrix resin, 10%-68% of diluent %, 0.5% to 7% of photoinitiator and 1% to 5% of other additives; said other additives include leveling agent, defoamer, crosslinking agent and photosensitizer

Method used

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  • Ultraviolet curing adhesive with low surface viscosity and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Material ratio:

[0026] Based on the total mass of the system, matrix resin 40%; based on the total mass of matrix resin, polyolefin acrylate 1: 50%, polyolefin acrylate 2: 50%;

[0027] Based on the total mass of the system, the diluent is 53.3%; based on the total mass of the diluent, isobornyl acrylate: 80%, lauric acrylate: 20%;

[0028] In terms of the total mass of the system, the photoinitiator is 4.4%; in terms of the total mass of the photoinitiator, 2-methyl-1-(4-methylthiophenyl)-2-morpholine-1-acetone: 45%, 2 -Phenylbenzyl-2-dimethylamine-1-(4-morpholinebenzylphenyl) butanone: 55%;

[0029] Based on the total mass of the system, leveling agent: 0.3%, defoamer: 0.3%, coupling agent: 1.7%.

[0030] The above-mentioned materials are mixed and stirred at room temperature, and stirred evenly to obtain a UV-curable adhesive.

Embodiment 2

[0032] Material ratio:

[0033] Based on the total mass of the system, matrix resin 40%; based on the total mass of matrix resin, polyolefin acrylate 1: 50%, polyolefin acrylate 2: 50%;

[0034] Based on the total mass of the system, diluent 50.8%; based on the total mass of diluent, isobornyl acrylate: 80%, lauric acrylate: 20%;

[0035] In terms of the total mass of the system, the photoinitiator is 4.4%; in terms of the total mass of the photoinitiator, 2-methyl-1-(4-methylthiophenyl)-2-morpholine-1-acetone: 45%, 2 -Phenylbenzyl-2-dimethylamine-1-(4-morpholinebenzylphenyl) butanone: 55%;

[0036] Based on the total mass of the system, active ammonia crosslinking agent: 2.5%, leveling agent: 0.3%, defoamer: 0.3%, coupling agent: 1.7%.

[0037] The above-mentioned materials are mixed and stirred at room temperature, and stirred evenly to obtain a UV-curable adhesive.

[0038] At room temperature, spread the UV glue prepared in Example 1 and Example 2 on a clean, smooth, fl...

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Abstract

The invention discloses an ultraviolet curing adhesive with low surface viscosity and a preparation method thereof, and belongs to the technical field of photocuring materials. In order to solve the problems that a free radical type UV curing adhesive has high free radical activity, is easy to oxidize and has oxygen inhibition, so that the surface of a coating film is sticky, and the hardness, glossiness, wear resistance and the like of a coating film are influenced, the invention provides an ultraviolet curing adhesive consisting of matrix resin, a diluent, a photoinitiator and other auxiliaries. The adhesive has the advantages of low surface viscosity after curing, good mechanical properties and the like, and has a wide application range and a relatively high use value.

Description

technical field [0001] The invention belongs to the technical field of light-curing materials, and in particular relates to an ultraviolet light-curing adhesive with low surface viscosity and a preparation method thereof. Background technique [0002] UV curing adhesives are composed of main components such as prepolymers, active monomers, photoinitiators, etc., and additives such as stabilizers and leveling agents. Under the irradiation of UV light of appropriate wavelength, the photoinitiator rapidly generates free radicals or ions, triggering the polymerization and crosslinking of prepolymer and active monomer to form a network structure, thereby completing the bonding with the adhered material. [0003] Among them, the free radical UV light curing technology is the earliest application and the technology is relatively mature. It is the main system currently used. It has the advantages of fast curing speed, economical and environmental protection, and excellent coating pe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06C09J4/02C09J11/06
CPCC09J4/06C09J11/06
Inventor 杨凤敏李利虎姜贺
Owner 长春艾德斯新材料有限公司
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