Synthesis and application of bisphenol F

Study on the synthesis and application of bisphenol F

bisphenol F, alias: 4,4 dihydroxydiphenylmethane; Methylenebisphenol; Bis - (hydroxyphenyl) methane is a monomer for synthetic materials. It can be used to synthesize epoxy resin, polycarbonate resin, polyester resin, phenolic resin, flame retardant, antioxidant and surfactant

bisphenol F is obtained by condensation reaction with phenol and formaldehyde as raw materials and acid as catalyst. Because the intermediate of ortho and para hydroxymethylphenol is generated in the intermediate process, the final product is 4,4 '-, 2,4' -, 2,2 '- bisphenol F isomerization, and the high-efficiency and energy-saving granulator is the mixture of the terminator of waste plastics, whose melting points are 162 ℃ and 12 respectively. How to eliminate faults in the process of use and ensure the good operation of the machine is 0 ℃ and 119 ℃, and the ratio of isomers is related to the process conditions, 4,4 'one isomer can be separated in the process

catalyst is one of the important process conditions of plastic extrusion machinery that Chinese enterprises are talented to produce by themselves. In 1983, however, in general, rist and wilbraham, mass of the United States successfully studied a new process for the synthesis of bisphenol F with phosphoric acid as catalyst, making bisphenol F products enter a new stage of industrial production and application development research. The process determines the best ratio of raw materials and catalysts

one of the important uses of bisphenol F is to replace or partially use bisphenol A in the production of epoxy resin. Compared with bisphenol A (BPA) epoxy resin, bisphenol F (BPA) epoxy resin has the greatest characteristics of low viscosity, good processability and mechanical properties. Therefore, it can be used in solvent-free to ultra-high solid coatings, casting and molding materials, laminates and other fields requiring low liquid viscosity

bisphenol F is also mainly used as modifier and stabilizer of phenolic resin. The modified phenolic resin made by bisphenol F can greatly improve the processability, mechanical properties and electrical properties of phenolic resin, and expand its application field

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