Characteristics of waterborne epoxy resin

1、 Waterborne epoxy

With the strong implementation of environmental protection laws and regulations by local governments and the increasing awareness of environmental protection, the use of water-based coatings and other environmental protection coatings will become the mainstream of industry development. The waterborne epoxy resin is one of the most important materials. It is a heterogeneous system in which epoxy resin is dispersed in water in the form of particles. Epoxy resin is a thermoplastic linear structure. After being heated, the solid becomes liquid and the high viscosity becomes low viscosity. Only when it is used together with curing agent can it have practical value. Waterborne epoxy resin is generally divided into hydrophilic epoxy resin and emulsion epoxy resin.

Hydrophilic epoxy resin is a kind of self emulsifying technology, which is to connect a hydrophilic group on the original main chain segment of epoxy resin, so that it can have some hydrophilic characteristics.

Emulsified waterborne epoxy resin, emulsified epoxy resin, does not affect the structure of the body, and emulsifier, water and dispersion are used to make epoxy resin emulsion waterborne epoxy emulsion.

2、 Characteristics of waterborne epoxy resin


1. The water-based epoxy resin does not contain emulsifier, it is a real environmental protection product.


2. Rarely change the chemical properties of the original material, but slightly change some physical properties, such as DG temperature and surface hardness.


3. The waterborne epoxy resin generally needs to be violently dispersed in a certain amount of water in the factory, and the solid content is generally about 50%, so it can be fully dispersed, and the storage stability and transportation requirements are high.


4. During the application of waterborne epoxy resin, the water content and viscosity can be adjusted by adding water at will, which will not affect its dilution effect and reduce the negative effect of drainage. The hydrophilic epoxy resin can be used as a kind of water-free adhesive coating which is crosslinked and solidified in humid or water environment.