The preparation method of brominated epoxy resin (BEO) is continuously optimized, and brominated epoxy resin flame retardants are its end products.

Brominated epoxy resin (BEO), also known as bromine-containing epoxy resin and brominated epoxy resin, refers to an epoxy resin containing bromine element (Br) in its molecular structure. Brominated epoxy resin has the advantages of good UV resistance, good heat resistance, good self-extinguishing properties, low toxicity, and water resistance. It is widely used in electronic and electrical, construction engineering, aerospace and other fields.

The preparation methods of brominated epoxy resin include modification method and copolymerization method. The modification method refers to using potassium bromide or potassium bromate as the main raw material, adding epoxy resin to mix, and then adding a catalyst to fully react to obtain the finished product; the copolymerization method uses bisphenol F epoxy resin or bisphenol A epoxy resin as the main material The base material is added with toluene bromide or methyl bromide copolymer, and the finished product is obtained after full reaction. In recent years, Chinese companies have continuously optimized the preparation methods of brominated epoxy resin, and emerging preparation methods such as one-step method and two-step method have gradually been applied in its production.

According to different molecular weights, brominated epoxy resins can be divided into three types: high molecular weight brominated epoxy resins, medium molecular weight brominated epoxy resins and low molecular weight brominated epoxy resins; according to different end groups, they can be divided into EC type brominated epoxy resins There are two types of epoxy resin and EP brominated epoxy resin. EC-type brominated epoxy resin has the advantages of good toughness and high impact strength, and can be used to produce flame-retardant ABS and flame-retardant PP; EP-type brominated epoxy resin contains lower bromine content, but has better light resistance, and can be used in production PBT and PET resins.

According to the “2023-2028 China Brominated Epoxy Resin (BEO) Industry Market In-depth Research and Development Prospects Forecast Report span>》shows that brominated epoxy resin has a wide range of applications, including adhesives, flame retardants, coatings, etc. as its end products. Brominated epoxy resin flame retardant has the advantages of green environmental protection, high thermal stability, and good flame retardant effect. As a reactive flame retardant, it is widely used in the production process of flame retardant grade composite materials. As the development of downstream industries accelerates, my country’s brominated epoxy resin market demand will further grow.

The major global manufacturers of brominated epoxy resin include 3M Company of the United States, EPICRESINS of the United States, BASF AG of Germany, etc. The main brominated epoxy resin manufacturers in my country include Kaimei Chemical Technology (Nantong) Co., Ltd., Shandong Tianyi Chemical Co., Ltd., Shandong Kaiji Chemical Technology Co., Ltd., etc. Currently, Kaiji Chemical is actively promoting a brominated epoxy resin production project with an annual output of 30,000 tons.

          Industry analysts said that brominated epoxy resin has excellent performance and is widely used in many fields. Benefiting from the continuous improvement of technological maturity, the output and quality of brominated epoxy resin in my country have further improved. In the future, as market demand becomes increasingly strong, the development space of my country’s brominated epoxy resin industry will continue to expand. Kaiji Chemical is my country’s largest brominated epoxy resin manufacturer. In the future, as leading companies continue to exert their efforts, the concentration of my country’s brominated epoxy resin industry will further increase.