What Are the Applications of Epoxy Resin?

The development history of epoxy resin

Epoxy resin was patented by P.Castam in Switzerland in 1938. The earliest epoxy adhesive was developed by Ciba in 1946, and epoxy coatings were developed by S.O.Creentee in the United States in 1949. China began industrial production of epoxy resin in 1958. Epoxy resin refers to a general term for polymer compounds with two or more epoxy groups in the polymer chain structure, which belong to thermosetting resins. The representative resin is bisphenol A epoxy resin. The application value of epoxy resin alone is very low. It needs to be used in combination with a curing agent to have practical value. Epoxy resin has high bonding strength and ranks first in bonding strength in synthetic adhesives. Epoxy resin has small curing shrinkage, and the shrinkage of epoxy resin adhesive is the smallest in adhesive, which is one of the reasons why epoxy resin adhesive has high curing bond strength. The breakdown voltage of epoxy resin can be greater than 35kv/mm, and it has good process performance, stable product size, good resistance, and low water absorption rate.

The application of epoxy resin

Epoxy resin used for coatings industry

Epoxy resin has the largest demand in the coatings industry. Currently, widely used types include water-based coatings, powder coatings, and high-solid coatings. It can be widely used in industries such as pipelines, vessels, automobiles, ships, aerospace, electronics, toys, and crafts.

Epoxy resin used for electronics and electrical engineering

Epoxy resin adhesive can be used as electrical insulation materials, such as the sealing and impregnation of rectifiers and transformers; sealing and protection of electronic components; insulation treatment and bonding of mechanical and electrical products; sealing and bonding of batteries; surface covering of capacitors, resistors, and inductors.

Epoxy resin used for hardware, crafts, sports equipment industries

It can be used in products such as signs, ornaments, trademarks, hardware, rackets, fishing tackle, sports equipment, crafts, etc.

Epoxy resin uesd for optoelectronic industry

It can be used for encapsulating, potting, and bonding products such as light-emitting diodes (LEDs), digital tubes, pixel tubes, electronic display screens, and LED decorations.

Epoxy resin used for construction industry

It is also widely used in industries such as roads, bridges, floors, steel structures, building, wall coatings, dams, engineering construction, cultural relics repair, etc.

Epoxy resin used for adhesives, sealants, and composite materials

It is used for bonding various materials such as wind turbine blades, crafts, ceramics, glass, composite of carbon fiber plates, sealing of microelectronic materials, etc.