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Preparation method of epoxy modified thermosetting acrylic waterborne resin

A water-based and epoxy-modified technology of acrylic acid, which is applied in coatings, anti-corrosion coatings, etc., can solve the problems of insufficient chemical resistance and poor fullness, improve fullness and chemical resistance, and realize water-based Effect

Inactive Publication Date: 2018-09-14
鹤山市肇能新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Thermosetting acrylic water-based resin has the advantages of low price, safe use, saving resources and energy, reducing environmental pollution and public nuisance, excellent gloss, weather resistance and low temperature drying; but the fullness is poor, and the chemical resistance is not good enough

Method used

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  • Preparation method of epoxy modified thermosetting acrylic waterborne resin
  • Preparation method of epoxy modified thermosetting acrylic waterborne resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Mix the following components to obtain material A: E-12 epoxy resin 100g, propylene glycol methyl ether 300g, isobutanol 100g, ethylene glycol monobutyl ether 150g; mix the following components to obtain material B: acrylic acid 50g, Butyl acrylate 200g, isooctyl acrylate 80g, hydroxypropyl acrylate 50g, styrene 100g, methyl methacrylate 100g, tert-butyl peroxybenzoate 10, benzoyl peroxide 1g; 5 g of butyl ester and 20 g of ethylene glycol monobutyl ether are mixed to obtain material C;

[0035] (2) A material is put into a four-necked flask and heated to reflux;

[0036] (3) Put material B into the beaker, stir evenly, add dropwise to the four-necked flask, the dropwise addition time is 3 hours, heat up and reflux for two hours;

[0037] (4) Add material C under reflux, finish adding in 30 minutes, and keep warm for 3 hours under reflux;

[0038] (5) Cooling and discharging to obtain an epoxy-modified thermosetting acrylic water-based resin.

Embodiment 2

[0040] (1) Mix the following components to obtain material A: E-20 epoxy resin 200g, propylene glycol methyl ether 100g, isobutanol 250g, ethylene glycol monobutyl ether 350g; mix the following components to obtain material B: acrylic acid 150g, 50g of butyl acrylate, 250g of isooctyl acrylate, 50g of hydroxypropyl acrylate, 100g of styrene, 100g of methyl methacrylate, 1g of tert-butyl peroxybenzoate, 12g of benzoyl peroxide; mix the following components to get Material C: benzoyl peroxide 2g, isobutanol 25g.

[0041] (2) A material is put into a four-necked flask and heated to reflux;

[0042] (3) Put material B into the beaker, stir evenly, add dropwise to the four-necked flask, the dropwise addition time is 3 hours, heat up and reflux for two hours;

[0043] (4) Add material C under reflux, finish adding in 30 minutes, and keep warm for 3 hours under reflux;

[0044] (5) Cooling and discharging to obtain an epoxy-modified thermosetting acrylic water-based resin.

Embodiment 3

[0046] (1) Mix the following components to obtain material A: E-51 epoxy resin 300g, propylene glycol methyl ether 200g, isobutanol 150g, ethylene glycol monobutyl ether 250g; mix the following components to obtain material B: acrylic acid 80g, Butyl acrylate 100g, isooctyl acrylate 150g, hydroxypropyl acrylate 120g, styrene 80g, methyl methacrylate 150g, tert-butyl peroxybenzoate 5g, benzoyl peroxide 6g; 3 g of butyl ester and 20 g of propylene glycol methyl ether were mixed to obtain material C.

[0047] (2) A material is put into a four-necked flask and heated to reflux;

[0048] (3) Put material B into the beaker, stir evenly, add dropwise to the four-necked flask, the dropwise addition time is 3 hours, heat up and reflux for two hours;

[0049] (4) Add material C under reflux, finish adding in 30 minutes, and keep warm for 3 hours under reflux;

[0050] (5) Cooling and discharging to obtain an epoxy-modified thermosetting acrylic water-based resin.

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Abstract

The invention discloses a preparation method of epoxy modified thermosetting acrylic waterborne resin. The method includes: dissolving epoxy resin in an alcohol ether solvent to obtain a material A, and mixing a reaction monomer with an initiator to obtain a material B; dissolving the initiator in the alcohol ether solvent to obtain a material C; feeding the material A into a four-mouth flask andconducting heating reflux; feeding the material C into a beaker, stirring the substances evenly, dripping the mixture into the four-mouth flask for 3h, conducting heating reflux and heat preservationfor 2h; replenishing the material C under reflux within 30min, and conducting reflux and heat preservation for 3h; and performing cooling and discharging, thus obtaining the epoxy modified thermosetting acrylic waterborne resin. By grafting the epoxy resin to thermosetting waterborne resin molecules, the method can well overcome the shortcomings of poor fullness and chemical resistance, and then improves the product performance and increase the product competitiveness.

Description

technical field [0001] The invention relates to the technical field of resin preparation, in particular to a preparation method of an epoxy-modified thermosetting acrylic water-based resin. Background technique [0002] Thermosetting acrylic resin refers to acrylate monomers (methyl acrylate, ethyl acrylate, n-butyl acrylate, methyl methacrylate, n-butyl methacrylate, etc.) Insoluble, non-melting acrylic polymer. Also known as cross-linked or reactive acrylic resin, thermosetting acrylic resin has certain functional groups, which react with melamine resin, epoxy resin, polyurethane, etc. added during paint making, and finally form a network structure. To achieve the effect of insoluble and infusible. [0003] Thermosetting acrylic water-based resin has the advantages of low price, safe use, saving resources and energy, reducing environmental pollution and public nuisance, excellent gloss, weather resistance and low temperature drying; but the fullness is poor, and the chem...

Claims

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Application Information

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IPC IPC(8): C08F283/10C08F220/18C08F220/20C08F212/08C08F220/14C08G59/17C09D151/08C09D5/08
CPCC09D151/08C08F283/105C08G59/1466C09D5/08C08F220/1808C08F220/1804
Inventor 邓肇能刘开国
Owner 鹤山市肇能新材料有限公司
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