The Research Of Bmi Resin And Hydantoin Epoxy Resin Modified By Molybdenum-containing Phenolic Resin

BMI and EP are widely used in aerospace, transportation, construction and so on. Butwith the development of electric industry, aerospace, strict conditions of use are increasinglydemanding, requirements of heat resistance of materials are put forward more strict, so thedevelopment of BMI and EP with high heat resistant is very important.In this paper, molebdenum-phenolic resol resin were sythetised at first, and then BMIand hydantoin epoxy resin were modified by it. Many modern analysis techniques were usedto characterizated the microstructure, solidification performance, thermal decompositionproperties of molybdenum phenolic resin, Mo-PF / BMI, Mo-PF / hydantoin epoxy resin.Molebdenum-phenolic resol resin was synthesized by phenol, formaldehyde, molybdateand sodium hydroxide. Optimal synthesis technology was obtained by orthogonal test withchar yields as index. Curing reaction of the resin was investigated by FTIR. Molecular weightdistribution of the resin was characterizated by GPC. The curing reaction activation energywas analyzed by gel time at different temperatures. Thermal stability was characterizated byTG.BMI was modified by Mo-PF, curing reaction kinetics of the system was characterizatedby DTA.Thermal decomposition kinetics was characterizated by TG.The kinetic equation wasdeduced by various kinetic parameters of the system.Hydantoin epoxy resin was modified by Mo-PF, curing reaction kinetics of the systemwas characterizated by DTA.Thermal decomposition kinetics was characterizated by TG.Thekinetic equation was deduced by various kinetic parameters of the system.