What are the applications of flexible epoxy resin?

Flexible epoxy resin is used in traditional epoxy resin application fields to greatly improve product performance. In terms of electrical insulation, flexible epoxy resin is used in electrical insulation castables, which can help solve the cracking and partial discharge problems that have long plagued the manufacturing process of transformers, transformers, reactors, switches and other electrical products, and improve the product qualification rate. .

In electronic product potting, encapsulation materials, and adhesives, flexible epoxy resin can improve the relationship between epoxy resin and shells, wires, and components. The bonding force eliminates cracking and insulation performance degradation caused by mechanical and temperature stress changes, and improves the reliability of the product’s long-term operation. Flexible epoxy resin is used in the coating field to improve the adhesion of the coating film and increase the impact strength.

In the previous epoxy resin coating formula design, 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 requires processing technology. It has poor properties, and a large amount of solvent must be added to make the coating, which not only increases the cost but also causes environmental pollution. For example, the use of aliphatic glycidyl ether type flexible epoxy resin can not only improve the toughness, but also has low viscosity. It can be used together with low molecular weight bisphenol A epoxy resin to make solvent-free epoxy coatings.

In the construction field, such as tile pasting, building crack repair, roof leakage prevention, elastic floor materials, etc., flexible epoxy resin can play its unique role. As flexible epoxy resin is further understood by people, new products will continue to emerge, application technology will become increasingly mature, and the application fields of flexible epoxy resin will be further expanded. This new type of epoxy resin will be used in epoxy resin Play a greater role in resin formula design.