间苯二酚－甲醛有机气凝胶的结构控制研究

Study on Structure Controlling of RF Aerogels

以间苯二酚（Ｒｅｓｏｒｃｉｎｏｌ）－甲醛（Ｆｏｒｍａｌｄｅｈｙｄｅ）为原料，用溶胶－凝胶法和超临界干燥工艺制备了纳米多孔ＲＦ有机气凝胶。系统研究了原料配比、催化剂的使用、反应温度及溶剂用量等因素对ＲＦ气凝胶凝结时间和结构的影响，可以实现对该材料的结构进行纳米尺寸上的控制，从而为该材料的应用开发奠定了基础。

RF Aerogels are prepared through sol-gel process and supercritical drying technique form resorcinol with formaldehyde.The ratio of reactants,the use of catlyst,reaction temperature and the amount of solvent affect the structure of resultant RF aerogels.By controling these factors,we can vary the structure and density of RF aerogels to satisfy our needs.