Preparation and properties of fluorinated silicone modified epoxy resin composite

A fluorinated silicone modified agent was prepared via polymerization of diphenyl silicone glycol, toluene diisocyanate and octafluoro pentanol, and then was mixed with epoxy resin and curing agent, after that got epoxy composites. This material has characteristics of organic silicon and organic fluorine. The thermal gravimetric analysis,contact angle analysis, surface elemental analysis and impact strength analysis were used to study epoxy composites. It comes to the conclusion that when the content of fluorine containing silicone modified agent reaches 20 phr, the maximum heat loss rate temperature reaches 375℃ and the contact angle is 120.8°. And the impact strength increases by 83% compared to the pure epoxy resin when the content of fluorine containing silicone modified agent reaches 15 phr. The molecular structure of the modifier contains the active groups which can cure epoxy resin, so it has effects of modifier and curing agent. © 2015, Editorial Board of Polymer Materials Science & Engineering. All right reserved.