Epoxy resin (Epoxy Resin, EP) is a highly cross-linked thermosetting polymers, molecular formula (C11H12O3)n, is the molecule contains two or more epoxy groups, and under appropriate conditions can react with the curing agent to form a three-dimensional crosslinked network of curing substances in general. There are many types of epoxy resins with many different classification methods, and a reasonable classification is conducive to the study of the curing properties of epoxy resins. Among them, bisphenol A glycidyl ether (DGEBA) and bisphenol F glycidyl ether (DGEBF) are the most commonly used epoxy resins in the market today.   Bisphenol A and Bisphenol F have some differences in terms of properties, uses and safety:. Chemical structure:   The main difference between Bisphenol A and Bisphenol F epoxy resins is the phenolics they use. Bisphenol A uses bisphenol A, while Bisphenol F uses difluorophenol. These two phenols are structurally different and therefore have some effect on the performance of the epoxy resin. 2.    Differences in thermal properties: Bisphenol A epoxy resin is relatively low in heat resistance, may be deformed or lose the original performance in high temperature environment; Bisphenol F epoxy resin has a high high temperature resistance, in the high temperature can still maintain a good stability.   Difference in solvent resistance: Bisphenol F epoxy resin has better solvent resistance and higher solvent adsorption capacity. Bisphenol A epoxy resins may swell, dissolve or dissolve in certain solvents, so special protective measures are required in specific environments. In addition, Bisphenol F and Bisphenol A epoxy resins differ in their uses. Bisphenol F epoxy resin is often used in aerospace, electronics and electrical engineering due to its high temperature resistance and solvent resistance, especially for electronic packaging in high temperature environments. Bisphenol A epoxy resin is mainly used in general epoxy flooring, coatings, adhesives and other applications, stable performance, relatively low price.   Bisphenol A epoxy resin and Bisphenol F epoxy resin also differ in terms of safety. Bisphenol A epoxy resin may contain Bisphenol A, which is a potentially toxic chemical to humans, while Bisphenol F epoxy resin is relatively safer and is more suitable for use in areas with higher requirements for human safety.   In summary, there are some differences between Bisphenol A and Bisphenol F epoxy resins in terms of performance, usage and safety. It is very important to choose the suitable epoxy resin material according to the actual demand to ensure the quality and safety of the product.