How much do you know about waterborne epoxies?

Waterborne epoxy resin

Waterborne epoxy resins can be divided into anionic and cationic resins. The anionic resins are used for anodic electrodeposition coatings and the cationic resins are used for cathodic electrodeposition coatings.Waterborne epoxy resin is mainly characterized by excellent anti-corrosion performance. In addition to automobile coating, it is also used in medical instruments, electrical appliances and light industrial products and other fields.

Advantages of waterborne epoxy coatings

Waterborne epoxy resin refers to a stable dispersion system prepared by the dispersion of epoxy resin in the form of particles or droplets in the dispersion medium with water as the continuous phase.Since epoxy resin is a thermosetting resin with linear structure, water-based epoxy curing agent must be added before construction, and biochemical cross-linking reaction can be carried out at room temperature. After curing, epoxy resin changes its original soluble and fusible nature and becomes an insoluble and non-fusible spatial network structure, showing excellent performance.Waterborne epoxy resin coating has many advantages of solvent-based epoxy resin coating:

1. It has strong adaptability, high adhesion to many substrates, excellent corrosion resistance and chemical resistance of the cured film, and film shrinkage, high hardness, good wear resistance, excellent electrical insulation performance, etc.

2. It has good environmental performance, but also does not contain organic solvents or volatile organic compounds content is low, will not cause air pollution, so meet the requirements of current environmental protection;

3. It is truly water-based, with water as a dispersing medium, low price, odorless, non-combustible, storage, transportation and use of the process of safety is greatly improved;

The construction tools can be directly cleaned with water, and can be cured in room temperature and humid environment. It has a reasonable curing time and ensures a high cross-linking density.This is usually waterborne acrylic coatings and waterborne polyurethane coatings can not be compared.Waterborne epoxy resin with its outstanding performance advantages, so that the prepared waterborne epoxy resin coating also has excellent performance, so in the big family of waterborne products status is more and more important, experts believe that waterborne epoxy resin in today's environmental protection, the prospect is very broad.