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发明公开
CN105367793A 具有优异空间环境特性的氰酸酯树脂预聚体、预浸料及其制备方法和应用 无效 - 驳回

具有优异空间环境特性的氰酸酯树脂预聚体、预浸料及其制备方法和应用
摘要：
本发明涉及具有优异空间环境特性的氰酸酯树脂预聚体、预浸料及其制备方法和应用，该预聚体包括环氧倍半硅氧烷与氰酸酯树脂，其中环氧倍半硅氧烷的质量百分比含量为0.5～8％，氰酸酯树脂的质量百分比含量为92～99.5，优选环氧倍半硅氧烷的质量百分比含量为0.5～5％，氰酸酯树脂的质量百分比含量为95～99.5，该预聚体的制备方法为：将环氧基倍半硅氧烷与氰酸酯树脂混合，并升温至100-160℃，预聚5-18h，得到含环氧基倍半硅氧烷的氰酸酯树脂组合物预聚体；该预浸料包括氰酸酯树脂预聚体和连续纤维或织物，具有更高的玻璃化转变温度，所得制品或复合材料的孔隙率低，收缩小，具有优异的空间环境性能，可以广泛用于电子工业、航空、航天、国防军工等诸多行业。
摘要（英）：

The invention relates to a cyanate ester resin prepolymer with excellent space environment property, and a prepreg, a preparation method and application thereof. The prepolymer comprises epoxy-silsesquioxane and cyanate ester resin, wherein the mass percentage of the epoxy-silsesquioxane is 0.5 to 8%, preferably 0.5 to 5%; and the mass percentage of the cyanate ester resin is 92 to 99.5%, preferably 95 to 99.5%. The preparation method for the prepolymer comprises the following steps: mixing the epoxy-silsesquioxane and the cyanate ester resin, then carrying out heating to 100 to 160 DEG C, and carrying out prepolymerization for 5 to 18 h so as to obtain the prepolymer containing a composition of the epoxy-silsesquioxane and the cyanate ester resin. The prepreg comprises the cyanate ester resin prepolymer and continuous fibers or fabrics, and has higher glass-transition temperature; and products and composite materials prepared from the prepreg have low porosity, small shrinkage and excellent space environment performance, and can be widely applied in a plurality of industries like electronic industry, aviation industry, space industry and national defense military industry.

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