Modified UV photocuring pure acrylic resin and preparation method thereof

A pure acrylic resin, light curing technology, applied in the direction of epoxy resin coating, coating, etc., can solve the problems of poor water resistance, poor water resistance of coating film, limit the use range of pure acrylic resin, etc., to achieve good water resistance, coating Low film shrinkage and good overall performance

Inactive Publication Date: 2011-01-05
JIANGMEN PAINT FACTORY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional UV light-curing pure acrylic resin has poor water resistance, and the formed c

Method used

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Examples

Experimental program
Comparison scheme
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preparation example Construction

[0023] The preparation method of UV light-curable pure acrylic resin includes three major steps of synthesis of epoxy-based pure acrylic resin, synthesis of UV light-curable pure acrylic resin, and synthesis of modified UV light-curable pure acrylic resin, wherein:

[0024] Epoxy-based pure acrylic resin synthesis includes:

[0025] 1) Put the reflux solvent into the reactor, add glycidyl methacrylate, butyl methacrylate, butyl acrylate, methyl methacrylate, isobornyl methacrylate, initiator in the reactor, stir evenly, get mixed monomer;

[0026] 2) Under the protection of protective gas, the mixed monomer is stirred, heated, kept warm, and refluxed for 2 to 5 hours to obtain epoxy-based pure acrylic resin;

[0027] UV light curing pure acrylic resin synthesis includes:

[0028] 1) Cool down the prepared epoxy-based pure acrylic resin to 85-105°C, add a polymerization inhibitor and a ring-opening catalyst, stir well and then add methacrylic acid or acrylic acid;

[0029] 2...

Embodiment 1

[0036] Synthesis of epoxy-based pure acrylic resin

[0037] 1) Take the reflux solvent of 10% of the total material volume, 22 parts of glycidyl methacrylate, 15 parts of butyl methacrylate, 3 parts of butyl acrylate, 8 parts of methyl methacrylate, 9 parts of isobornyl methacrylate 1 part, 1 part of initiator, put into a mixer and stir evenly to obtain a mixed monomer;

[0038] 2) Under the protection of nitrogen, stir and heat the reaction kettle added with 15-25% of the total amount of reflux solvent to 135-140°C, add the above-mentioned mixed monomers dropwise, and complete the dropwise addition within 2-3 hours. , reflux, insulation reaction for 1 hour, to obtain epoxy-based pure acrylic resin;

[0039] UV light curing pure acrylic resin synthesis includes:

[0040] 1) Cool down the prepared epoxy-based pure acrylic resin to 85-105°C, add 0.02 parts of polymerization inhibitor, 0.5 parts of ring-opening catalyst, stir well and add 10 parts of methacrylic acid;

[0041]...

Embodiment 2

[0046] Synthesis of epoxy-based pure acrylic resin

[0047] 1) Take reflux solvent of 10% of total material volume, 20 parts of glycidyl methacrylate, 12 parts of butyl methacrylate, 8 parts of butyl acrylate, 3 parts of methyl methacrylate, 12 parts of isobornyl methacrylate 3 parts, 3 parts of initiator, drop into the mixer and stir evenly, obtain mixed monomer;

[0048] 2) Under the protection of nitrogen, stir and heat the reaction kettle added with 15-25% of the total amount of reflux solvent to 135-140°C, add the above-mentioned mixed monomers dropwise, and complete the dropwise addition within 2-3 hours. , reflux, insulation reaction for 1 hour, to obtain epoxy-based pure acrylic resin;

[0049] UV light curing pure acrylic resin synthesis includes:

[0050] 1) Cool the prepared epoxy-based pure acrylic resin to 85-105°C, add 0.05 parts of polymerization inhibitor, 0.2 parts of ring-opening catalyst, stir well and add 10 parts of acrylic acid;

[0051] 2) Raise the t...

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PUM

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Abstract

The invention discloses modified UV photocuring pure acrylic resin and a preparation method thereof. The modified UV photocuring pure acrylic resin comprises the following raw materials in part by mass: 17 to 23 parts of glycidyl tertcarbonate, 20 to 30 parts of glycidyl methacrylate, 3 to 8 parts of methyl methacrylate, 12 to 18 parts of butyl methacrylate, 3 to 8 parts of butyl acrylate, 10 to 14 parts of methacrylic acid or crylic acid, 8 to 12 parts of methacrylic isobornyl thiocyanoacetate, 10.5 to 13.5 parts of adipic acid, 1.5 to 2.5 parts of para-toluenesulfonic acid, 0.2 to 0.5 part of open-loop catalyst, 0.01 to 0.05 part of polymerization inhibitor and 1.0 to 3.0 parts of initiator. The modified UV photocuring pure acrylic resin has good water resisting property and maintains the excellent performance of pure acrylic resin; simultaneously, the modified UV photocuring pure acrylic resin is used for UV photocureable coatings, and the films have the advantages of low shrinkage rate and excellent combination property.

Description

technical field [0001] The invention relates to a UV photocurable resin and a preparation method thereof, in particular to a modified UV photocurable pure acrylic resin and a preparation method thereof. Background technique [0002] UV light curing resin does not contain solvent or only a small amount of inert diluent, no heating is required during curing, it has the characteristics of less environmental pollution, low energy consumption, high efficiency, good chemical stability and wide applicability, energy saving and environmental protection, development fast. [0003] However, the traditional UV light-curable pure acrylic resin has poor water resistance, and the formed coating film has poor water resistance, which limits the application range of UV light-curable pure acrylic resin. Contents of the invention [0004] The object of the present invention is to provide a kind of UV photocurable pure acrylic resin with good water resistance. [0005] The technical scheme ...

Claims

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Application Information

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IPC IPC(8): C08G59/17C08G59/14C08F220/32C09D163/10
Inventor 朱章卫
Owner JIANGMEN PAINT FACTORY
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