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Electron beam curing type acrylate adhesive and application thereof

An electron beam curing, acrylate technology, applied in the direction of non-polymer organic compound adhesives, adhesives, film/sheet adhesives, etc., can solve the problem that the softness of the adhesive and the degree of crosslinking cannot be controlled anymore. Control and affect product stability and other issues, achieve high flexibility, promote long-term high temperature resistance, improve peel strength and stickiness

Pending Publication Date: 2022-07-15
亮线上海新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, UV curing, that is, adhesives cured with high-intensity UV lamps as a radiation source, often has a complex structure, high energy consumption for UV curing (5 to 10 times that of electron beam curing), and high cost of consumables. In addition, the cost of the photoinitiator needs to be increased, and the stability of the product will be affected by the high temperature of UV radiation. sticky effect

Method used

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  • Electron beam curing type acrylate adhesive and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] This example provides an adhesive. The raw materials for the preparation of the adhesive, in terms of weight percentage, include butanone 35 (wt.)%, n-butyl acrylate 52 (wt.)%, acrylic acid 10 (wt.)% , azobisisoheptanenitrile 2.4 (wt.)%, antioxidant 1076 0.6 (wt.)%.

[0058] This example also provides the above-mentioned preparation method of the adhesive, including:

[0059] Add butanone to the reaction kettle, add n-butyl acrylate, acrylic acid, azobisisoheptanenitrile, antioxidant 1076, and add dropwise to the reaction kettle after mixing, fill with nitrogen for protection, and complete the dropwise addition within 5 hours to complete After the titration, the heating was continued for 3 hours, and the reaction kettle was evacuated until the solvent was completely separated to obtain a light yellow transparent liquid adhesive.

Embodiment 2

[0061] This example provides an adhesive. The raw materials for the preparation of the adhesive, in percentage terms, include: methyl ethyl ketone 35 (wt.)%, n-butyl acrylate 29 (wt.)%, isooctyl acrylate 13 (wt. %) .)%, methyl acrylate 10(wt.)%, acrylic acid 10(wt.)%, dibenzoyl peroxide 2.4(wt.)%, antioxidant 1010 0.6(wt.)%.

[0062] This example also provides the above-mentioned preparation method of the adhesive, including:

[0063] Add methyl ethyl ketone to the reaction kettle, add n-butyl acrylate, isooctyl acrylate, methyl acrylate, acrylic acid, dibenzoyl peroxide, antioxidant 1010, mix and drop into the reaction kettle, fill with nitrogen for protection, The dropwise addition was completed within 5 hours, and after the titration was completed, the heating was continued for 3 hours; the reaction kettle was evacuated until the solvent was completely separated to obtain a light yellow transparent liquid adhesive.

Embodiment 3

[0065] This example provides an adhesive, and the raw materials for the preparation of the adhesive, in percentage terms, include: butanone 35 (wt.) %, n-butyl acrylate 42 (wt.) %, isooctyl acrylate 10 (wt. %) .)%, acrylic acid 10(wt.)%, azobisisobutyronitrile 2.6(wt.)%, antioxidant 1076 0.4(wt.)%.

[0066] This example also provides the above-mentioned preparation method of the adhesive, including:

[0067] Add butanone to the reaction kettle, add n-butyl acrylate, isooctyl acrylate, acrylic acid, antioxidant 1076, azobisisobutyronitrile, after mixing, dropwise into the reaction kettle, fill with nitrogen for protection, within 5 hours After the dropwise addition was completed, after the titration was completed, the heating was continued for 3 hours, and the reaction kettle was evacuated until the solvent was completely separated to obtain a light yellow transparent liquid adhesive.

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Abstract

The invention relates to the field of adhesives, in particular to an electron beam curing type acrylate adhesive and application thereof. The adhesive is prepared from the following raw materials in parts by weight: 55-70 parts of allyl monomers, 20-40 parts of a solvent and 2-4 parts of an initiator, and the allyl monomers comprise alkyl acrylate and acrylic acid. According to the invention, electron beams are adopted to radiate the acrylate adhesive to form the adhesive polymer film, so that the adhesive product is prepared, the obtained adhesive can be directly formed on a substrate, many intermediate steps for preparing a traditional pressure-sensitive adhesive can be omitted, and the production cost is reduced. And the adhesive layer of the adhesive tape can be cross-linked, cured and dried by radiation of the electron beam accelerator, so that all functions of a traditional coating machine oven are completed. 100% curing is achieved, no residue, no initiator, no odor and no voc emission are truly achieved, and compared with a traditional adhesive, the adhesive is more energy-saving and environmentally friendly and has better weather resistance.

Description

technical field [0001] The present invention relates to the field of adhesives, and more particularly, the present invention relates to an electron beam-curable acrylate adhesive and its application, that is, through the action of high-energy electron beams of an electron accelerator, the resin system is rapidly cured, which changes the In the traditional UV curing method, an external photoinitiator is required to generate free radicals. There is no need to add photoinitiators to generate free radicals, but directly act on the active resin, usually completing the curing process within a few milliseconds. Background technique [0002] With the increasing emphasis on environmental protection, the development of electron beam-curable acrylate adhesives is an important development trend. Due to the use and volatilization of organic solvents, solvent-based hot melt adhesives will cause environmental pollution and a large amount of energy waste at the same time. , is gradually bei...

Claims

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Application Information

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IPC IPC(8): C09J4/02C09J7/30C09J7/20
CPCC09J4/00C09J7/30C09J7/20
Inventor 郑金颖
Owner 亮线上海新材料科技有限公司
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