Solvent-free ultraviolet curing pressure sensitive adhersive for polyethylene protective film and preparation method thereof

A polyethylene protective film, solvent-free technology, applied in the direction of adhesive types, ester copolymer adhesives, film/sheet adhesives, etc. application, poor adhesion of pressure-sensitive adhesives, etc., to achieve the effects of good peel strength, fast curing, and low energy consumption

Active Publication Date: 2010-02-17
无锡达美新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some literatures have reported the formulation and preparation method of solvent-free UV-curable pressure-sensitive adhesives, such as US2005176842 and Japanese patents JP2003165958, JP2005082775, JP2005048130, JP10060382, JP9241584, JP8020749, etc., but none of them involve solvent-free Application of UV-curable pressure-sensitive adhesive in the field of polyethylene protective film
Due to the special surface properties of polyethylene film, the adhesion of general pressure-sensitive adhesives on polyethylene film is often poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 240g butyl acrylate, 400g isooctyl acrylate, 96g methyl methacrylate, 8g acrylic acid, 8g hydroxyethyl acrylate, 24g glycidyl methacrylate, 4g n-dodecyl mercaptan and 4g benzoyl peroxide Mix well; add 120g of the above mixture into a nitrogen-protected reactor, and add 0.8g of benzoyl peroxide when the temperature rises to 80°C; after 30 minutes of polymerization, slowly add the remaining amount of the above mixture dropwise under reflux , finished dropping in about 3 hours; after the dropwise addition, add 13.0g trimethylolpropane trimethacrylate and 6.5g dipentaerythritol pentaacrylate, and continue the reflux reaction for 30 minutes; stop the reaction, and obtain acrylate after cooling prepolymer.

[0049] Stir 82g of acrylate prepolymer, 3g of benzoin ether and 15g of hydrogenated rosin glyceride evenly at room temperature to prepare the solvent-free UV-curable pressure-sensitive adhesive of the present invention.

[0050] The prepared solvent-free UV-curable press...

Embodiment 2

[0060] 88g ethyl acrylate, 200g butyl acrylate, 328g isooctyl acrylate, 30g methyl acrylate, 90g methyl methacrylate, 16g methacrylic acid, 16g hydroxyethyl methacrylate, 16g glycidyl methacrylate, Mix 4g tert-dodecyl mercaptan and 4g benzoyl peroxide evenly; add 80g of the above mixture into a nitrogen-protected reactor, and add 0.8g benzoyl peroxide when the temperature rises to 80°C; polymerize for 30 minutes Finally, slowly add the remaining amount of the above mixture dropwise under reflux, and finish dropping in about 3 hours; after the dropwise addition, add 15g of ethylene glycol methacrylate and 8.5g of dipentaerythritol pentaacrylate, and continue the reflux reaction for 30 minutes ; Stop the reaction and obtain the acrylate prepolymer after cooling.

[0061] 82g of acrylate prepolymer, 2g of benzoin ether, 1g of amino ketone and 15g of hydrogenated rosin were evenly stirred at room temperature to prepare the solvent-free UV-curable pressure-sensitive adhesive soluti...

Embodiment 3

[0068] Mix 160g lauryl acrylate, 440g isooctyl acrylate, 136g styrene, 24g acrylic acid, 8g methylol acrylamide, 12g glycidyl methacrylate, 4g n-dodecyl mercaptan and 4g azobisisobutyronitrile Uniform; add 80g of the above mixture into a nitrogen-protected reactor, and add 0.8g of azobisisobutyronitrile when the temperature rises to 80°C; after 30 minutes of polymerization, slowly add the remaining amount of the above mixture dropwise under reflux , finished dropping in about 3 hours; after dropping, add 15g of ethylene glycol methacrylate and 10g of trimethylolpropane trimethacrylate, and continue the reflux reaction for 30 minutes; stop the reaction, and obtain acrylate after cooling prepolymer.

[0069] Stir 81g of acrylate prepolymer, 1g of benzoin ether, 1g of benzophenone and 17g of rosin glyceride evenly at room temperature to prepare the solvent-free UV-curable pressure-sensitive adhesive solution of the present invention.

[0070] The prepared solvent-free UV-curable...

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Abstract

The invention discloses a solvent-free ultraviolet curing pressure sensitive adhersive for polyethylene protective film and a preparation method thereof. The solvent-free ultraviolet curing pressure sensitive adhersive comprises the following components by weight percent: 60-90% of acrylate prepolymer, 0.1-5% of photoinitiator and 5-35% of tackifier. The solvent-free ultraviolet curing pressure sensitive disclosed by the invention has good adhesive force to the polyethylene film and can realize good balance among initital adhesive force, peeling strength and cohesive force.

Description

technical field [0001] The invention relates to a solvent-free UV-curable pressure-sensitive adhesive and a preparation method thereof. More specifically, the invention relates to a solvent-free UV-curable pressure-sensitive adhesive for polyethylene protective films and a preparation method thereof. Background technique [0002] Protective film is a surface protection and packaging material used to protect the surface of commodities. It is pasted on various metals, aluminum-plastic panels, plastic panels, coated steel, stainless steel panels, aluminum profiles, stone, glass, instruments, and furniture. Such as the surface of the commodity, so that it can protect the surface during manufacturing, transportation, secondary processing, storage and use, prevent the commodity from being polluted, scratched and slow down the oxidation of the commodity surface. The application of protective film can not only improve the appearance quality of products and facilitate material proces...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J133/08C09J11/08C09J7/02
Inventor 李国荣
Owner 无锡达美新材料有限公司
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