Application of flexible epoxy resin

The emergence of flexible epoxy resin will change the concept that people have long believed that epoxy resin is a brittle material, and develop many new uses of epoxy resin, such as replacing polyurethane and silicone rubber in some fields, which can increase its adhesion. properties and chemical resistance. Crystalline epoxy resin

    Flexible epoxy resins are used in traditional epoxy resin applications, which can greatly improve product performance. In terms of electrical insulation, flexible epoxy resin is used for electrical insulation castables, which helps to solve the cracking and partial discharge problems that have long plagued the manufacturing process of electrical products such as transformers, transformers, reactors, switches, etc., and improve the qualification rate of products. . In electronic product potting, encapsulating materials and adhesives, flexible epoxy resin can improve the adhesion between epoxy resin and shell, wires and components, and eliminate cracking and insulation performance degradation caused by mechanical and thermal stress changes. phenomenon, and improve the reliability of long-term operation of the product. In the coating field, flexible epoxy resin is used, which can improve the adhesion of the coating film and increase the impact strength. In the previous formulation design of epoxy resin coatings, in order to increase the toughness of the coating film, high molecular weight epoxy resin had to be used. However, this epoxy resin has high viscosity and poor processability. A large amount of solvent must be added to make the coating, which not only increases the cost increase and cause environmental pollution. If the aliphatic glycidyl ether type flexible epoxy resin is used, it can not only improve the toughness, but also has a low viscosity. It can be used together with low molecular weight bisphenol A epoxy resin to make a solvent-free epoxy coating. In the field of construction, such as pasting ceramic tiles, repairing cracks in buildings, leak-proof roofing, elastic floor materials, etc., flexible epoxy resin can play its unique role.

    As flexible epoxy resin is further recognized by people, new products will continue to emerge, application technology will become more mature, and the application field of flexible epoxy resin will be further expanded. Play a greater role in resin formulation design.

Application of flexible epoxy resin