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HIGH-TEMPERATURE RESISTANT MODIFIED SILICON-CONTAINING CYANATE ESTER RESIN AND PREPARATION METHOD AND USE THEREOF

Provided are a high-temperature resistant modified silicon-containing cyanate ester resin and a preparation method and a use thereof. The method comprises the following steps: adding a mixed solution of a hydroxy silicone oil, a silane coupling agent and an organic solvent to a mixed solution of a tetramethylammonium hydroxide aqueous solution and a polar solvent, performing hydrolysis and condensation at a temperature of 5-40 ?C for 4-8 h, and performing distillation to obtain an epoxy-containing silsesquioxane; performing prepolymerization on the epoxy-containing silsesquioxane and a cyanate ester resin at a temperature of 50-100 ?C for 1-8 h to obtain a modified cyanate ester resin; and evenly mixing the modified cyanate ester resin with a modified acid anhydride to obtain a high-temperature resistant modified silicon-containing cyanate ester resin. Intrinsic toughening is used to reduce the brittleness of a cyanate ester resin without sacrificing the heat resistance thereof, so that a high-temperature resistant resin composition having a transition temperature (Tg) of 240-270 ?C can be prepared by a pultrusion process. The resin composition exhibits excellent heat resistance and has significantly reduced costs.


» Number: WO2017076108A1 (A1)

» Publication Date: 11/05/2017

» Applicant: SUZHOU TAIHU ELECTRIC ADVANCED MAT CO LTD?[CN]

» Inventor: WU BIN?[CN]; ZHANG CHUNQI?[CN] (5)

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