Ultraviolet curing pressure-sensitive adhesive containing ultraviolet cross-linked tackifying resin and preparation method thereof

A technology of tackifying resin and ultraviolet light, which is applied in the direction of non-macromolecular organic compound adhesives, adhesives, adhesive types, etc., can solve problems such as difficult to achieve balance, limited use, and lack of cross-linkability, and achieve Excellent tackifying effect, excellent initial tack performance and high temperature resistance, excellent UV crosslinking effect

Inactive Publication Date: 2015-06-03
HEBEI ZHISHENG GREEN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional tackifiers are helpful to improve initial adhesion and peel strength, but because they are not crosslinkable and do not participate in UV crosslinking, they inevitably affect the high temperature resistance of pressure sensitive adhesives, making it difficult to achieve The balance between the various properties, which greatly limits its use

Method used

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  • Ultraviolet curing pressure-sensitive adhesive containing ultraviolet cross-linked tackifying resin and preparation method thereof
  • Ultraviolet curing pressure-sensitive adhesive containing ultraviolet cross-linked tackifying resin and preparation method thereof
  • Ultraviolet curing pressure-sensitive adhesive containing ultraviolet cross-linked tackifying resin and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] A UV-curable pressure-sensitive adhesive containing a UV-crosslinkable tackifying resin, based on the total mass of the UV-curable pressure-sensitive adhesive as 100%, the components and mass percentages are as follows:

[0041] UV-crosslinkable acrylate copolymer tackifying resin 30%;

[0042] Methoxy polyethylene glycol (550) monomethacrylate 65%;

[0043] 2-Hydroxy-2-methyl-1-phenylacetone-1 5%;

[0044] Among them, the UV-crosslinkable acrylate copolymer tackifying resin is prepared from UV photoactive monomers, soft monomers, hard monomers, thermal initiators and solvents, based on the total mass of the raw materials being 100%. , the mass percentages of each component are as follows:

[0045]

[0046] A method for preparing a UV-curable pressure-sensitive adhesive containing a UV-crosslinkable tackifying resin, the specific steps of the method are as follows:

[0047] (1) Mix 2-hydroxy-4-methacryloyloxybenzophenone, ethyl acrylate, n-butyl acrylate, isooctyl...

Embodiment 2

[0056] A UV-curable pressure-sensitive adhesive containing a UV-crosslinkable tackifying resin, based on the total mass of the UV-curable pressure-sensitive adhesive as 100%, the components and mass percentages are as follows:

[0057] UV-crosslinkable acrylate copolymer tackifying resin 59%;

[0058] n-Butyl Acrylate 40%;

[0059] 2-Hydroxy-2-methyl-1-phenylacetone-1 1%;

[0060] Among them, the UV-crosslinkable acrylate copolymer tackifying resin is prepared from UV photoactive monomers, soft monomers, hard monomers, thermal initiators and solvents, based on the total mass of the raw materials being 100%. , the mass percentages of each component are as follows:

[0061]

[0062] A method for preparing a UV-curable pressure-sensitive adhesive containing a UV-crosslinkable tackifying resin, the specific steps of the method are as follows:

[0063] (1) 4-propenyloxy-2-hydroxybenzophenone, butyl methacrylate, isobornyl acrylate and benzoyl peroxide are mixed uniformly to o...

Embodiment 3

[0072] A UV-curable pressure-sensitive adhesive containing a UV-crosslinkable tackifying resin, based on the total mass of the UV-curable pressure-sensitive adhesive as 100%, the components and mass percentages are as follows:

[0073] UV crosslinkable acrylate copolymer tackifying resin 48%;

[0074] Methoxy polyethylene glycol (550) monoacrylate 47%;

[0075] 2-Methyl-1-[4-methylmercaptophenyl]-2-morpholine acetone-1 3%;

[0076] Among them, the UV-crosslinkable acrylate copolymer tackifying resin is prepared from UV photoactive monomers, soft monomers, hard monomers, thermal initiators and solvents, based on the total mass of the raw materials being 100%. , the mass percentages of each component are as follows:

[0077]

[0078] A method for preparing a UV-curable pressure-sensitive adhesive containing a UV-crosslinkable tackifying resin, the specific steps of the method are as follows:

[0079] (1) Mix 2-hydroxyl-4-methacryloxybenzophenone, isobutyl acrylate, isoocty...

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Abstract

The invention discloses an ultraviolet curing pressure-sensitive adhesive containing ultraviolet cross-linked tackifying resin and a preparation method thereof, and belongs to the field of high-molecular compounds. The ultraviolet curing pressure-sensitive adhesive comprises ultraviolet cross-linked acrylate copolymer tackifying resin, a monofunctional acrylate monomer and a photoinitiator. The preparation method comprises the following steps: mixing an ultraviolet active monomer, a soft monomer, a hard monomer and a thermal initiator to obtain a mixed solution a of which the total volume is v; adding 0.3v of mixed solution a to a reaction kettle, adding a solvent, stirring, heating and reacting to obtain a mixed solution b; dropwise adding 0.7v of mixed solution a to the mixed solution b at a constant speed, reacting and carrying out reduced pressure distillation; and adding the monofunctional acrylate monomer and the photoinitiator, and mixing evenly to obtain the ultraviolet curing pressure-sensitive adhesive, wherein the ultraviolet curing pressure-sensitive adhesive contains the ultraviolet cross-linked acrylate copolymer tackifying resin; and ultraviolet cross-linking of the tackifying resin is realized, so that the comprehensive property of the ultraviolet curing pressure-sensitive adhesive is excellent; and the method is simple, and simple and convenient to operate.

Description

technical field [0001] The invention relates to an ultraviolet-curable pressure-sensitive adhesive containing an ultraviolet-light crosslinkable tackifying resin and a preparation method thereof, belonging to the field of polymer compounds. Background technique [0002] UV-curable pressure-sensitive adhesive is 100% active material, which can be directly coated on the substrate paper, and the cross-linking reaction can be completed instantaneously by ultraviolet light irradiation, which is environmentally friendly and energy-saving, and can realize continuous mass production. Compared with solvent-based pressure-sensitive adhesives, UV-curable pressure-sensitive adhesives do not contain any volatile solvents, and their volatile organic compound (VOC) emissions are almost zero; compared with water-based pressure-sensitive adhesives, UV-curable pressure-sensitive adhesives The glue does not have problems such as poor water resistance, and can achieve high-speed coating. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/02C09J4/06C09J171/08C09J133/08C08F220/18
Inventor 陈智陈嘉刘治生
Owner HEBEI ZHISHENG GREEN TECH
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