UV (ultraviolet)-curable acrylate polymer water emulsion for coating polypropylene film

A technology of polypropylene film and acrylate, applied in the direction of coating, etc., can solve the problems of poor bonding performance between coating resin and BOPP substrate, weak cohesion of resin molecules, excessive polarity and surface energy, etc., to improve spreading performance , strong cohesion, and easy system viscosity

Active Publication Date: 2014-05-28
GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, organic solvents pollute the environment and are harmful to the health of production personnel.
If water and water-based solvents are used as coating solvents, the bonding performance of the coating resin to the BOPP substrate is poor
The polarity and surface energy of many resin emulsions used as coating solutions are too large after film formation, the spreading performance of the emulsion on BOPP plastic film is not good, and the cohesion of resin molecules after film formation is not strong, resulting in poor adhesion

Method used

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  • UV (ultraviolet)-curable acrylate polymer water emulsion for coating polypropylene film
  • UV (ultraviolet)-curable acrylate polymer water emulsion for coating polypropylene film
  • UV (ultraviolet)-curable acrylate polymer water emulsion for coating polypropylene film

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Embodiment 1

[0045] Embodiment 1: the preparation of UV photocurable acrylate polymer aqueous emulsion for polypropylene film coating

[0046] Preparation of water-based acrylate prepolymer emulsion: by weight ratio, add 150 parts of ethylene glycol monomethyl ether, 5 parts of allyl polyoxyethylene ether (molecular weight 5000), 5 parts Parts of methacrylic acid, 60 parts of lauryl acrylate, 30 parts of methyl acrylate, 2 parts of azobicyclohexylcarbonitrile, after heating up to 75°C for 10 hours, add 0.5 parts of 2,5-di-tert-butylhydroquinone , 0.2 parts of tetrabutyl ammonium fluoroborate, add 8 parts of glycidyl methacrylate, continue to react at 102°C for 4 hours, remove the solvent to obtain a water-based acrylate prepolymer; dissolve it in 200 parts of water, and heat Stir for 10min to obtain an aqueous acrylate prepolymer emulsion;

[0047] Preparation of UV-curable acrylate polymer aqueous emulsion: Take 300 parts of the above-mentioned aqueous acrylate prepolymer emulsion, add 1...

Embodiment 2

[0050] Embodiment 2: the preparation of UV photocurable acrylate polymer aqueous emulsion for polypropylene film coating

[0051] Preparation of water-based acrylate prepolymer emulsion: by weight, add 200 parts of cyclohexanone and 20 parts of methallyl polyoxyethylene polyoxypropylene ether (molecular weight 2000) into a reactor equipped with a stirrer and a thermometer , 20 parts of methacrylic acid, 50 parts of decyl acrylate, 10 parts of ethyl acrylate, 3 parts of azobisisoheptanonitrile, after heating up to 80°C for 15 hours, add 1 part of 2-tert-butylhydroquinone, 0.5 1 part of trioctylmethylammonium chloride, add 20 parts of glycidyl methacrylate, continue to react at 110°C for 5 hours, remove the solvent to obtain a water-based acrylate prepolymer; dissolve it in 200 parts of water, and Stir for 10min to obtain an aqueous acrylate prepolymer emulsion;

[0052] Preparation of UV-curable acrylate polymer aqueous emulsion: Take 300 parts of the above-mentioned aqueous a...

Embodiment 3

[0055] Embodiment 3: the preparation of UV photocurable acrylate polymer water emulsion for polypropylene film coating

[0056] Preparation of water-based acrylate prepolymer emulsion: by weight ratio, add 180 parts of xylene, 10 parts of allyl polyoxyethylene polyoxypropylene ether (molecular weight 3000), 10 parts of Methacrylic acid, 60 parts of isooctyl acrylate, 20 parts of propyl acrylate, 2.5 parts of azobisisovaleronitrile, after heating up to 78°C for 12 hours, add 0.8 parts of p-hydroxyanisole, 0.4 parts of trioctyl bromide Ammonium, add 10 parts of glycidyl acrylate, continue to react at 105°C for 4.5 hours, remove the solvent to obtain a water-based acrylate prepolymer; dissolve it in 200 parts of water, and stir at a high speed for 10 minutes at room temperature to obtain a water-based acrylate prepolymer Lotion;

[0057] Preparation of UV-curable acrylate polymer aqueous emulsion: Take 300 parts of the above-prepared aqueous acrylate prepolymer emulsion, add 300...

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Abstract

The invention belongs to the technical field of acrylate polymer water emulsion, and discloses a UV (ultraviolet)-curable acrylate polymer water emulsion for coating a polypropylene film, and a preparation method and application thereof. The polymer water emulsion comprises the following components in parts by weight: 300 parts of water-based acrylic emulsion prepolymer, 1 to 5 parts of photoinitiator, 0.5 to 1 part of emulsifier, 0.5 to 1 part of flatting agent, 0.1 to 1 part of de-foaming agent, and 100 to 400 parts of water. The structure of the acrylate polymer water emulsion disclosed by the invention contains rich ester groups and alkyl groups, and can form acting force with the inorganic materials, such as glass, and organic interfaces, such as BOPP (biaxially-oriented polypropylene) plastic film; the polyether segment has high flowability and is soluble in water; the spreadability property of the emulsion on the BOPP film and the bonding property, the durability and the like of the emulsion on a cured film are improved; the UV-curable acrylate polymer water emulsion is favorable for the adhesive sealing and the fixing between the BOPP film and other plastics, glass, wood, metal, biological tissues and the like.

Description

technical field [0001] The invention belongs to the technical field of acrylate polymer aqueous emulsion, and in particular relates to a UV light-curable acrylate polymer aqueous emulsion for coating polypropylene film BOPP and its preparation method and application. Background technique [0002] Biaxially oriented polypropylene (BOPP) film has the characteristics of colorless, odorless, non-toxic, high transparency, high tensile strength, high impact strength, etc. It is widely used in food, clothing, medicine, chemical industry and other fields, but the molecular chain of BOPP film Strong rigidity and few polar groups lead to low polarity, low surface energy, poor wettability, and difficult printing. Therefore, pretreatment is usually required before coating the surface of BOPP film to improve the coating's effect on the substrate. of adhesion. There are two methods to improve the adhesion of the coating to the polyolefin film, one is to modify the substrate, and the othe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D151/08C08F283/06
Inventor 刘伟区王红蕾
Owner GUANGZHOU CHEM CO LTD CHINESE ACADEMY OF SCI
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