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Aqueous epoxy resin and preparation method thereof

A technology of water-based epoxy resin and epoxy resin, which is applied in the field of epoxy resin preparation, can solve problems such as hazards, and achieve the effect of simple production method

Inactive Publication Date: 2010-09-15
漳州市奈特新型建材有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solvent-free epoxy resins often have to add reactive diluents to reduce their viscosity, but some reactive diluents are volatile and have the same or even more serious hazards as solvents

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] composition

[0033] Bisphenol A epoxy resin BE188 (Taiwan Changchun Chemical Industry Group) 100 parts

[0034] 4,4-Azobis(4-cyanovaleric acid) 30 parts

[0035] Water-soluble hardener diethylenetriamine 20 parts

[0036] 150 parts of water

[0037] Ammonia 30 parts

[0038] Polyethylene glycol 10 parts

[0039] Mix bisphenol A epoxy resin BE188 with 4,4-azobis(4-cyanovaleric acid), put it into the reaction axe, pressurize and react at 150°C for 1 hour, add water and ammonia water, and then add polyethylene Diol was stirred with a high-speed mixer (1000rpm) and high-sonic vibration for 1 hour to obtain milky yellow water-based epoxy resin A liquid; diethylenetriamine was B liquid. Mix liquid A and liquid B, stir with a high-speed mixer (1000rpm) with high-sonic vibration for 1 minute to form a water-based epoxy resin / water-based hardener mixture, and apply the water-based epoxy resin / water-based hardener mixture to transparent PET In the film, the water-based epo...

Embodiment 2

[0041] Bisphenol A epoxy resin BE188 (Taiwan Changchun Chemical Industry Group) 100 parts

[0042] 4,4-Azobis(4-cyanovaleric acid) 30 parts

[0043] Water-soluble hardener diethylenetriamine 20 parts

[0044] 150 parts of water

[0045] Polyethylene glycol 10 parts

[0046] Mix bisphenol A epoxy resin BE188 with 4,4-azobis(4-cyanovaleric acid), put it into the reaction axe, react under pressure at 150°C for 1 hour, add water, and then add polyethylene glycol , stir with a high-speed mixer (1000rpm) with high-sonic vibration for 1 hour to obtain water-based epoxy resin A liquid (immiscible); diethylenetriamine is B liquid. Mix liquid A and liquid B, stir with a high-speed mixer (1000rpm) with high-sonic vibration for 1 minute to form a water-based epoxy resin / water-based hardener mixture (emulsion), and apply the water-based epoxy resin / water-based hardener mixture to the In the transparent PET film, the water-based epoxy resin hardens into a thin film after air-drying and ...

Embodiment 3

[0048] Bisphenol A epoxy resin BE188 (Taiwan Changchun Chemical Industry Group) 100 parts

[0049] 4,4-Azobis(4-cyanovaleric acid) 30 parts

[0050] Water-soluble hardener diethylenetriamine 20 parts

[0051] 150 parts of water

[0052] Polyethylene glycol 10 parts

[0053] 3 parts styrene

[0054] 3 parts methyl methacrylate

[0055] Propyl glycidyl ether 3 parts

[0056] Bisphenol A epoxy resin BE188, styrene, methyl methacrylate, allyl glycidyl ether and 4,4-azobis(4-cyanovaleric acid) are mixed, put into the reaction axe, at 150°C, Pressurize and react for 1 hour, add water, then add polyethylene glycol, and stir with a high-speed mixer (1000rpm) with high-sonic vibration for 1 hour to obtain water-based epoxy resin A liquid (immiscible); diethylenetriamine is For liquid B. Mix liquid A and liquid B, stir with a high-speed mixer (1000rpm) with high-sonic vibration for 1 minute to form a water-based epoxy resin / water-based hardener mixture (emulsion), and apply the wat...

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PUM

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Abstract

The invention discloses an aqueous epoxy resin and a preparation method thereof. The aqueous epoxy resin comprises a DGEBA-type epoxy resin, water soluble radical initiator, a phase transfer catalyst and a water soluble hardener. The DGEBA-type epoxy resin is modified by the water soluble radical initiator so as to be able to disperse in water to form emulsion; and the phase transfer catalyst and the water soluble hardener are added, so that the emulsion, when coated on a rubber sheet, wood or metal surface, can be dried at room temperature by air and hardened into a thin film which is insoluble in water.

Description

technical field [0001] The invention relates to a preparation method of epoxy resin, in particular to a water-based epoxy resin and a preparation method thereof. Background technique [0002] Epoxy resin has high strength, waterproof, and easy to use, so it is widely used in composite materials, adhesives, coatings, building materials and other fields. However, high-viscosity epoxy resins must be added with solvents or diluents to facilitate processing. Solvents or diluents are substances harmful to the human body and may be released during processing, endangering the health of builders or users. In recent years, various industries Started emphasizing solvent-free and water-based epoxies. Solvent-free epoxy resins often have to add reactive diluents to reduce their viscosity, but some reactive diluents are volatile and have the same or even more serious hazards as solvents. Therefore, in order to solve the problem of solvents and other organic volatiles, epoxy resins that ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08G59/68C08G59/50C08F283/10
Inventor 阮韶铭林镇辉阮榆
Owner 漳州市奈特新型建材有限责任公司