A kind of bifunctional epoxy resin emulsifier and preparation method of emulsion

An epoxy resin and bifunctional technology, which is used in the field of preparation of bifunctional epoxy resin emulsifiers and emulsions, can solve the problems of difficult reaction control, high preparation cost, and many by-products, and achieves dilution and storage stability. Excellent, low reaction requirements, enhanced hydrophilicity and heat resistance effects
CN105801868BActive Publication Date: 2018-12-28CHANGZHOU UNIV +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHANGZHOU UNIV
Publication Date
2018-12-28

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Abstract

The invention relates to a preparing method of bifunctionality epoxy resin emulsifier and emulsion. The preparing method comprises the specific steps that 1, trimellitic anhydride (TMA) and a catalyst (boron trifluoride diethyl etherate) are added into polyethylene glycol (PEG4000), and the temperature is raised for reaction; 2, a proper amount of bisphenol A epoxy resin E-44 is added into the reaction liquid, and the temperature continues to be raised for the reaction, so that multi-block epoxy resin emulsifier (PEGDET for short) is obtained; 3, a proper amount of epoxy resin and the emulsifier are mixed, deionized water is slowly added dropwise at a certain temperature, high-speed stirring is carried out until viscosity of a system is reduced abruptly, at the moment, the system is subjected to phase inversion, and water continues to be added, so that the water-borne epoxy resin emulsion is obtained. The water-borne epoxy resin emulsion prepared through the method has the advantages of being small in average grain diameter, low in dispersion, excellent in centrifuge, dilution and storage stability performance and the like, and a new thought is provided for preparing high-performance water-borne epoxy emulsion.
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Description

technical field

[0001] The invention belongs to the technical field of polymer materials, and in particular relates to a difunctional epoxy resin emulsifier and a preparation method of the emulsion. Background technique

[0002] With the increasing awareness of environmental protection in society, high-performance green and environmentally friendly coatings such as water-based coatings and powder coatings have attracted more and more attention. Water-based resin is an emulsion or aqueous solution formed by dispersing synthetic resin particles, droplets or colloids in the water phase. It has the advantages of environmental protection, low price and convenient construction. It is widely used in chemical industry, construction, food, aviation, fields such as pharmaceuticals and electrical appliances. At present, there are many kinds of water-based resins, including water-based polyurethane, water-based epoxy resin, water-based acrylic resin, etc., all of which have shown excel...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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