【摘要】 为了实现较高温度下有机物的分离 ,选择了氯代对苯二甲酸酯和 3-氨丙基三乙氧基硅烷为原料 ,用溶胶凝胶法制备了有机无机杂聚分离膜 ,讨论了酸度、浓度、水解时间、温度、底膜等各种因素对成膜的影响 ,并对膜的机械性能、耐热性以及膜的断面和表面结构进行了表征和分析。结果表明 :该种杂聚膜具有较好的耐热性 ,分解温度在 333℃左右 ;聚四氟乙烯 (PTFE)微孔膜是一种理想的支撑体 ,可以与杂聚材料很好复合 ;但膜的脆性较大。更多还原

【Abstract】 To achieve organic mixture separation at higher temperatures, organic inorganic hybrid membranes were prepared from 3 aminopropyltriethoxysilane(APST) and terephthaloyl chloride (CTPH) membrane material using the Sol Gel method. Experiments showed that many factors, such as acid content, solution concentration, hydrolysis time, temperature and type of support membranes, can affect the preparation process. The mechanical properties, heat resistance and structure of the membrane were characterized and analyzed. Experimental results showed that the membrane has good heat resistance with a decomposition temperature around 333 ℃. The polytetra fluor ethylene (PTFE) microporous membrane is an ideal support for the active layer except that the membrane is brittle.更多还原