Epoxy resin is a polymer with the molecular formula (C11H12O3)n, which is a general term for a class of polymers containing more than two epoxy groups in the molecule. It is the condensation product of epichlorohydrin and bisphenol A or polyol. Due to the chemical activity of the epoxy group, a variety of compounds containing active hydrogen can be used to make it ring-opening, curing and crosslinking to generate a network structure, so it is a thermosetting resin. Bisphenol A-type epoxy resin is not only the largest production, the most complete varieties, and the new modified varieties are still increasing, the quality is constantly improving.

Basic information

Main applications

Application 1: The application of epoxy resin in coating accounts for a large proportion, it can be made into a variety of characteristics, different uses. Its commonalities:

1. Excellent chemical resistance, especially alkali resistance.

2. The paint film has strong adhesion, especially to metals.

3. Good heat resistance and electrical insulation.

4. The paint film has good color retention.

Application 2: Adhesive use

Epoxy resin in addition to non-polar plastics such as polyolefin adhesion is not good, for a variety of metal materials such as aluminum, iron, copper; Non-metallic materials such as glass, wood, concrete, etc.; And thermosetting plastics such as phenolic, amino, unsaturated polyester and so on have excellent bonding properties, so it is known as a versatile adhesive. Epoxy adhesive is an important type of structural adhesive.

Application 3：Electronic appliance

Epoxy resin has been widely used in the insulation and packaging of high and low voltage electrical appliances, motors and electronic components because of its high insulation performance, strong structural strength and good sealing performance and many other unique advantages. 

Mainly used for pouring of electrical and motor insulation packages, such as electromagnet, contactor coil, transformer, dry type transformer and other high and low voltage electrical appliances of the whole fully sealed insulation package manufacturing. 

In the electrical industry has been rapid development. From atmospheric pouring, vacuum pouring has been developed to automatic pressure gel molding.

Application 4：The main use of epoxy adhesives in automobiles

1. It is widely used for potting insulation of devices with electronic components and circuits. It has become an important and indispensable insulating material in electronics industry.

2. Electronic grade epoxy molding plastics are used for the plastic sealing of semiconductor components. To develop extremely fast. Because of its superior performance, there is a tendency to replace the traditional metal, ceramic and glass packaging.

3. Epoxy laminated plastics are widely used in electronic and electrical fields. The development of epoxy-clad copper plate is particularly rapid and it has become one of the basic materials in the electronics industry.

In addition, epoxy insulating coatings, insulating adhesives and electric adhesives are also widely used.