What is epoxy resin?

Epoxy resin refers to a polymer compound containing two or more epoxy groups in its molecular structure. It can be used with amine, imidazole, acid anhydride, phenolic resin and other curing agents to produce products with excellent mechanical properties, insulation properties, corrosion resistance, bonding properties and low shrinkage properties. Because the comprehensive performance of its products is superior to other resins, its application fields are extremely wide, such as the preparation of coatings, castables, plastic sealants, laminates, adhesives, etc. It is widely used in various national economic sectors such as chemical industry, electromechanical, transportation, and national defense construction and plays a great role, becoming an indispensable and important chemical material.

Epoxy resin has a history of nearly 50 years since the United States achieved industrial production in 1947. Our country began to produce epoxy resin in 1958, and the development speed was not fast before the 1980s. Since the reform and opening up, the introduction of foreign advanced technology and equipment has promoted the rapid development of the production and application of epoxy resin. In particular, the Baling Petrochemical Corporation in Yueyang and the Petrochemical Corporation in Wuxi have successively introduced complete sets of epoxy resin equipment and equipment from Japan and Germany. With the advent of advanced technology, my country's epoxy resin production has increased, varieties have increased, quality has improved, and costs have decreased, which has improved the competitiveness of products in the market. In addition to these two factories producing high-purity epoxy resins, there are hundreds of small and medium-sized enterprises that produce ordinary bisphenol A-type epoxy resins. A very few of them also produce phenolic, polyol, and brominated epoxy resins. Type, element organic modified type, polyolefin type and other special specifications of resin to meet the various requirements of users at different levels.

The development of the materials industry has promoted the development of related industries. In particular, the development of high-tech industries in recent years has put forward higher requirements for materials, such as the high voltage of modern output variable voltages, the operation of electromechanical products in harsh environments, the high reliability requirements of electronic products, superconducting power generation and nuclear power generation. Safety requirements, high integration and high density of electronic components, etc., have put forward higher requirements for the quality of epoxy resin, especially the purity, which in turn prompts the need for continuous improvement and improvement of epoxy resin.

Since there are not many manufacturers in my country that can produce high-purity epoxy resin, more and more epoxy resins have been imported from abroad in recent years. For this reason, my country's epoxy resin production must be rapidly developed to adapt to the development of related industries.