Study on Synthesis of Epoxy Resin Modified with Polysiloxane

With allyl glycidyl ether and terminal hydrogen silicone oil, in certain conditions, the silicone-modified epoxy resin synthesized by the hydrosilylation reaction. This study discuss the effect of the structure and properties on the synthesized product, such as the catalyst, reaction time, reaction temperature and the C = C/Si-H molar ratio of allyl glycidyl ether and terminal hydrogen silicone oil. Infrared spectroscopy, gel permeation chromatography (GPC), epoxy value and hydrolysis chlorine of the polysiloxane-modified epoxy resin were characterized and analysized. The results show that the terminal hydrogen silicone oil-modified epoxy resin has balanced epoxy value, molecular weight and molecular weight distribution, the conversion of reactive hydrogen is the highest when the dosage of H2PtCl6 6H2O is 0.01% to 0.02% of reactant in weight, the molar ratio of C=C /Si-H in AGE (allyl glycidyl ether) and the terminal of hydrogen silicone oil is 4.28:1, the reaction temperature is 80°C to 85°C, reaction time is controlled in 6 hours.