有机先驱体法制备氮化硼涂层改性玻璃纤维织物  

Preparation of Boron Nitride Coated Glass Fabrics by Precursor Method

作　　者：黎鹏[1] 竺林 黄健[1] 

机构地区：[1]南京工业大学材料科学与工程学院,南京210009 [2]南京彤天科技实业有限责任公司,南京211164

出　　处：《玻璃纤维》2013年第1期35-40,共6页Fiber Glass

摘　　要：以三乙醇胺和硼酸为原料,合成了硼酸氨基三乙酯。研究了原料配比、反应温度及反应时间对产率的影响,在原料摩尔比1:1、温度160℃的条件下反应180min,硼酸氨基三乙酯的产率达到87%。由于N元素的引入,硼酸氨基三乙酯的水解稳定性良好,且在无水乙醇溶液中水解缓慢,能够满足工业上制备硼酸氨基三乙酯涂层的工艺要求。以硼酸氨基三乙酯为先驱体在氮气气氛中于400℃和800℃条件下热解,其热解产物为氮化硼和碳化硼的混合物。400℃时氮化硼的结晶程度较低,800℃时结晶程度提高。氮化硼涂层对高硅氧、无碱玻璃纤维织物具有显著的增强作用并可明显改善其耐温性能。With triethanolamine and boric acid as raw materials, triethanolamine borate was synthesized. In this process, the effects of raw materials mixing ratio, reaction temperature and reaction time on the yield were investi gated. Due to the introduction of N element, the hydrolytic stability of triethanolamine borate was good and could meet the technological requirements for commercially producing boron nitride coating material by a process of pyro lyzing triethanolamine borate as precursor in nitrogen gas atmosphere at 400 ℃ and 800 ℃, resulting in a mixture of boron nitride and boron carbide. Boron nitride exhibited lower crystallization at 400 ℃and higher crystallization at 800℃. The boron nitride coating provided significant ble improvement of their heat resistance. reinforcement for high silica and E glass fabrics and remarka

关 键 词：硼酸氨基三乙酯 先驱体 氮化硼 改性 玻璃纤维织物 

分 类 号：TQ171[化学工程—玻璃工业]