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A kind of water-based hybrid epoxy resin and preparation method thereof

An epoxy resin and hybridization technology, which is applied in coatings, anti-corrosion coatings, etc., can solve the problems of poor performance of water-based epoxy resin dispersed pigments and fillers, little anti-corrosion performance, and complicated formula raw materials, so as to improve adhesion, Contributes to anti-corrosion performance and good water resistance

Active Publication Date: 2022-08-09
上海广沣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the development and application of water-based epoxy resins in China are just in their infancy, and there are still many shortcomings. The most noticeable thing is that the corrosion resistance of water-based epoxy resins on the market at this stage is generally poor, and there is little ability Comparable to the anti-corrosion performance of solvent-based epoxy resin, in addition, the performance of water-based epoxy resin to disperse pigments and fillers is generally poor, which has been criticized
[0003] At present, the technical solution to solve the poor anti-corrosion performance of water-based epoxy resin is mainly by adjusting the late-stage coating formula, such as adding anti-rust pigments, selecting amine curing agents with relatively poor hydrophilicity, and adding a certain amount of silane coupling agent to improve the adhesion. Focusing on adding dispersants to grind and disperse pigments and fillers to improve the anti-corrosion effect of water-based epoxy resin in the later application, resulting in complex formula raw materials and increased costs, and does not solve the problem from the water-based epoxy resin itself

Method used

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  • A kind of water-based hybrid epoxy resin and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0049] The present embodiment provides a water-based hybrid epoxy resin and a preparation method thereof. The water-based hybrid epoxy resin of the present embodiment includes the following components:

[0050] Epoxy resin E44 500g, xylene formaldehyde resin 50g, titanate coupling agent 5g, catalyst boron trifluoride ether 3g, xylene 35g, ethylene glycol monobutyl ether 300g, acrylic monomer 20g, polyethylene glycol ( The molecular weight is 1000) 139g, p-toluenesulfonic acid 2g, styrene 50g, butyl acrylate 50g, hydroxyethyl acrylate 30g, tert-butyl peroxybenzoate 3g, deionized water 1000g.

[0051] The preparation method of the water-based hybrid epoxy resin of the present embodiment is as follows:

[0052](1) 500g of epoxy resin E44, 50g of xylene formaldehyde resin, 5g of titanate coupling agent, 3g of catalyst boron trifluoride ether, and 30g of xylene were added to the reaction flask and heated to 210°C, reacted for 2 hours, and cooled to 210°C. 100 g of ethylene glycol ...

Embodiment 2

[0057] The present embodiment provides a water-based hybrid epoxy resin and a preparation method thereof. The water-based hybrid epoxy resin of the present embodiment includes the following components:

[0058] Epoxy resin E44 500g, xylene formaldehyde resin 100g, titanate coupling agent 15g, catalyst boron trifluoride ether 5g, xylene 45g, ethylene glycol monobutyl ether 430g, acrylic monomer 20g, polyethylene glycol ( The molecular weight is 1000) 139g, p-toluenesulfonic acid 6g, styrene 60g, butyl acrylate 60g, hydroxyethyl acrylate 40g, tert-butyl peroxybenzoate 4g, deionized water 1500g.

[0059] The preparation method of the water-based hybrid epoxy resin of the present embodiment is as follows:

[0060] (1) 500g of epoxy resin E44, 100g of xylene formaldehyde resin, 15g of titanate coupling agent, 5g of catalyst boron trifluoride ether, and 30g of xylene were added to the reaction flask and heated to 210°C, reacted for 2 hours, and cooled to 130 g of ethylene glycol mo...

Embodiment 3

[0065] The present embodiment provides a water-based hybrid epoxy resin and a preparation method thereof. The water-based hybrid epoxy resin of the present embodiment includes the following components:

[0066] Epoxy resin E44 500g, xylene formaldehyde resin 200g, titanate coupling agent 30g, catalyst boron trifluoride ether 10g, xylene 51g, ethylene glycol monobutyl ether 450g, acrylic monomer 20g, polyethylene glycol ( The molecular weight is 1000) 139g, p-toluenesulfonic acid 6g, styrene 60g, butyl acrylate 60g, hydroxyethyl acrylate 40g, tert-butyl peroxybenzoate 4g, deionized water 1500g.

[0067] The preparation method of the water-based hybrid epoxy resin of the present embodiment is as follows:

[0068] (1) 500g of epoxy resin E44, 200g of xylene formaldehyde resin, 30g of titanate coupling agent, 10g of catalyst boron trifluoride ether, and 36g of xylene were added to the reaction flask and heated to 210°C, reacted for 2 hours, and cooled to 150 g of ethylene glycol ...

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Abstract

The invention discloses a water-based hybrid epoxy resin and a preparation method thereof. The water-based hybrid epoxy resin of the present invention comprises the following components in parts by mass: 40-70 parts of epoxy resin, 5-70 parts of xylene formaldehyde resin 25 parts, 0.5-8 parts of titanate coupling agent, 10-30 parts of polyethylene glycol, 2-8 parts of acrylic monomer, 5-30 parts of acrylic monomer, 0.3-1 part of catalyst A, catalyst 0.2-1 part of B, 0.2-0.5 part of initiator, 30-55 parts of solvent, and 100-250 parts of water. Compared with other existing epoxy resins, the water-based hybrid epoxy resin of the present invention has better anti-corrosion performance, good pigment dispersion performance, good water resistance, high ion resistance and good stability; The preparation method of the resin is simple, and the product can meet the needs of use.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an aqueous hybrid epoxy resin and a preparation method thereof. Background technique [0002] At present, the development and application of domestic water-based epoxy resins are just in their infancy, and there are still many deficiencies. Among them, the most interesting is that the corrosion resistance of commercially available water-based epoxy resins is generally poor at this stage, and there are few Comparing with the anti-corrosion performance of solvent-based epoxy resin, in addition, the performance of water-based epoxy resin to disperse pigments and fillers is generally poor and has been criticized. [0003] At present, the technical solution to solve the poor anti-corrosion performance of water-based epoxy resin is mainly by adjusting the late coating formulation, such as adding anti-rust pigments, selecting an amine curing agent with relatively poor hydrophilicity, and adding ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F283/10C08F283/00C08F283/06C08F220/18C08F212/08C09D151/08C09D5/08
CPCC08F283/10C08F283/00C08F283/065C09D151/08C09D5/08C08F212/08
Inventor 陈超
Owner 上海广沣科技有限公司