Ultraviolet curing pressure sensitive adhersive for polyethylene protective film and preparation method thereof

A polyethylene protective film, ultraviolet light technology, applied in the direction of adhesives, non-polymer organic compound adhesives, etc., can solve the problems that do not involve the application of ultraviolet light-curing pressure-sensitive adhesives, poor adhesion of pressure-sensitive adhesives, etc., and achieve curing. Fast, low-energy effects

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, many documents have reported the formulation and preparation method of UV-curable pressure-sensitive adhesives, such as US patents US3661618, US4181752, US5183833, US4943461, US4223067, Japanese patents JP62062833, JP01297483, JP200044889 and Chinese patents CN1560166, CN101451055, etc. Does not involve the application of UV-curable pressure-sensitive adhesives in polyethylene protective films
Due to the special surface properties of the polyethylene film, the adhesion of general pressure-sensitive adhesives on the polyethylene film is relatively poor, and since the polyethylene protective film needs to be torn off after completing the protective effect, no pressure-sensitive adhesive is allowed to remain on the surface of the polyethylene film. Protect the surface of the substrate, so the pressure-sensitive adhesive used must achieve a good balance in terms of initial adhesion, peel strength and cohesion in order to meet the requirements of use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] 11g butyl acrylate, 29g isooctyl acrylate, 6g methyl methacrylate, 1g acrylic acid, 1g hydroxyethyl acrylate, 1.5g glycidyl methacrylate, 0.3g n-dodecyl mercaptan and 0.4g peroxide Mix benzoyl evenly; add 5g of the above mixture and 50g of ethyl acetate into a nitrogen-protected reactor, and add 0.1g of benzoyl peroxide when the temperature rises to 80°C; after 30 minutes of polymerization, under reflux Slowly add the remaining amount of the above mixture dropwise, and finish dropping in about 3 hours; after the dropwise addition, continue the reflux reaction for 30 minutes; stop the reaction, and obtain the acrylate prepolymer after cooling.

[0055] 60g acrylate prepolymer, 1.5g benzoin ether, 0.5g trimethylolpropane trimethacrylate, 1.0g dipentaerythritol pentaacrylate, 10g hydrogenated rosin glyceride and 27g ethyl acetate were stirred evenly at room temperature, That is, the ultraviolet light-curable pressure-sensitive adhesive solution of the present invention is ...

Embodiment 2

[0067] 6g ethyl acrylate, 11g butyl acrylate, 18g isooctyl acrylate, 11g styrene, 0.5g methacrylic acid, 1g hydroxyethyl methacrylate, 2g glycidyl methacrylate, 0.2g tert-dodecyl Mix mercaptan and 0.3g benzoyl peroxide evenly; add 5g of the above mixture and 50g isopropanol into a nitrogen-protected reactor, and add 0.1g 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, continue the reflux reaction for 30 minutes; stop the reaction, and obtain the acrylate prepolymer after cooling.

[0068] Mix 60g acrylate prepolymer, 1g benzoin ether, 1g benzophenone, 0.5g trimethylolpropane trimethacrylate, 1.5g dipentaerythritol pentaacrylate, 10g terpene resin and 26g isopropanol at room temperature Stir evenly at the same time to obtain the UV-curable pressure-sensitive adhesive solution of the present inventi...

Embodiment 3

[0076] 18g stearyl acrylate, 20g isooctyl acrylate, 8g acrylonitrile, 1.5g acrylic acid, 1g methylol acrylamide, 1.0g glycidyl methacrylate, 0.3g n-dodecyl mercaptan and 0.4g azo Diisobutyronitrile was mixed evenly; 5 g of the above mixture, 30 g of ethyl acetate and 20 g of absolute ethanol were added to a nitrogen-protected reactor, and 0.1 g of azobisisobutyronitrile was added when the temperature rose to 80° C.; polymerization reaction 30 Minutes later, slowly add the remaining amount of the above mixture dropwise under reflux, and finish dropping in about 3 hours; after the dropwise addition, continue the reflux reaction for 30 minutes; stop the reaction, and obtain the acrylate prepolymer after cooling.

[0077] Stir 55g of acrylate prepolymer, 1.5g of benzoin ether, 0.5g of trimethylolpropane trimethacrylate, 1.3g of dipentaerythritol pentaacrylate, 8g of petroleum resin and 34g of ethyl acetate at room temperature to obtain Obtain the ultraviolet-curable pressure-sensi...

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Abstract

The invention discloses an ultraviolet curing pressure sensitive adhersive for the polyethylene protective film and a preparation method thereof. The ultraviolet curing pressure sensitive adhersive comprises the following components by weight percent: 30-80% of acrylate prepolymer, 0.03-4.5% of photoinitiator, 0.2-2.5% of photocuring crosslinking agent, 3-25% of tackifier and 5-40% of solvent. Theultraviolet curing pressure sensitive adhersive disclosed in 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 UV-curable pressure-sensitive adhesive and a preparation method thereof, more specifically, the invention relates to a UV-curable pressure-sensitive adhesive for a polyethylene protective film 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 processing, but also improve th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J4/06
Inventor 李国荣
Owner 无锡达美新材料有限公司
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