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Easily stripped pressure-sensitive adhesive and preparation method thereof

A pressure-sensitive adhesive and easy-peeling technology, which is applied in the direction of pressure-sensitive film/sheet, adhesive, film/sheet-shaped adhesive, etc., can solve the problem of pressure-sensitive adhesive high-temperature or low-temperature peel strength reduction, etc., to achieve strong cohesion, Improve the degree of cross-linking, the effect of high cross-linking degree

Pending Publication Date: 2022-03-22
安徽富印新材料股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an easy-peelable pressure-sensitive adhesive with high peel strength for the problem of high-temperature or low-temperature peel strength reduction of pressure-sensitive adhesives in the prior art.

Method used

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  • Easily stripped pressure-sensitive adhesive and preparation method thereof
  • Easily stripped pressure-sensitive adhesive and preparation method thereof
  • Easily stripped pressure-sensitive adhesive and preparation method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0023] An easy-peeling pressure-sensitive adhesive, the following raw materials are weighed:

[0024] Acrylic acid monomer 0.8kg; 2-ethylacrylic acid 0.2kg, 2-acetamidoacrylic acid 0.6kg;

[0025] Acrylate monomer 4kg, of which; 2,3-dihydroxypropyl acrylate 2kg; octadecyl acrylate 0.4kg; 2-cyanoethyl acrylate 1.2kg, methyl methacrylate 0.4kg.

[0026] Benzyl dithiobenzoate 1.4kg;

[0027] Polyoxypropylene mannitol dioleate 0.8kg;

[0028] Dithioester 0.3kg;

[0029] Azobisisobutyronitrile 0.3kg;

[0030] Polystyrene copolymer 0.8kg;

[0031] Solvent ethyl acetate 0kg.

[0032] 1) first mix acrylic acid monomer, acrylate monomer, benzyl dithiobenzoate and polyoxypropylene mannitol dioleate, stir evenly to obtain a monomer mixed solution, 2) take 40% of the monomer mixed solution Add -50% into the reactor, control the reactor to heat, add the chain transfer agent and initiator at a temperature of 70°C, and stir and mix. The dropwise addition condition is 70°C, 60min, and k...

Embodiment 4

[0042] An easy-peeling pressure-sensitive adhesive, the following raw materials are weighed:

[0043] Acrylic acid monomer 0.8kg; 2-ethylacrylic acid 0.2kg, 2-acetamidoacrylic acid 0.6kg;

[0044] Acrylate monomer 4kg, of which; 2,3-dihydroxypropyl acrylate 2kg; octadecyl acrylate 0.4kg; 2-cyanoethyl acrylate 1.2kg, methyl methacrylate 0.4kg.

[0045] Benzyl dithiobenzoate 1.4kg;

[0046] Polyoxypropylene mannitol dioleate 0.8kg;

[0047] Dithioester 0.18kg;

[0048] Dodecyl mercaptan 0.12kg;

[0049] Azobisisobutyronitrile 0.3kg;

[0050] Polystyrene copolymer 0.8kg;

[0051] Solvent ethyl acetate 0kg.

[0052] 1) first mix acrylic acid monomer, acrylate monomer, benzyl dithiobenzoate and polyoxypropylene mannitol dioleate, stir evenly to obtain a monomer mixed solution, 2) take 40% of the monomer mixed solution Add -50% into the reactor, control the reactor to heat, add the chain transfer agent and initiator at a temperature of 70°C, and stir and mix. The dropwise add...

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Abstract

The invention provides an easy-to-peel pressure-sensitive adhesive. The easy-to-peel pressure-sensitive adhesive comprises 8-12 parts by weight of an acrylic monomer, 30-42 parts by weight of an acrylate monomer, 10-15 parts by weight of benzyl dithiobenzoate, 3-10 parts by weight of polyoxypropylene mannitol dioleate, 2-6 parts by weight of a chain transfer agent, 3-5 parts by weight of an initiator, 5-8 parts by weight of a cross-linking agent and 88-110 parts by weight of a solvent. The easy-to-peel pressure-sensitive adhesive disclosed by the invention is relatively high in peeling degree at normal temperature, keeps initial viscosity after being continuously used for multiple times, and does not have any adhesive residue after being peeled for multiple times.

Description

technical field [0001] The invention belongs to the technical field of adhesives, in particular to an easy-peeling pressure-sensitive adhesive and a preparation method thereof. Background technique [0002] Pressure-sensitive adhesive refers to a type of adhesive that can be bonded to an adherend under external pressure. At present, it is widely used in industries such as sealing tape, labels, protective tape and decorative panels. With the development of industry, the application market of adhesives for self-adhesive labels is becoming more and more extensive, and the varieties are also increasing. The commonly used pressure-sensitive adhesives are solvent-based, water-based and hot-melt. At present, the amount of solvent-based products is relatively large. The solvents used in solvent-based acrylate pressure-sensitive adhesives are generally aromatic compounds such as benzene, toluene, and xylene, and sometimes halogen compounds such as chloroform and trichloroethylene. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J151/08C09J7/38C09J11/08C08F283/06C08F220/06C08F226/02C08F220/20C08F220/18C08F220/34C08F220/14
CPCC09J151/08C09J7/381C09J11/08C08F283/065C09J2301/302C08F220/06C08F226/02C08F220/20C08F220/1818C08F220/34C08F220/14C08L25/06
Inventor 杨智童
Owner 安徽富印新材料股份有限公司
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