CAJ | 학술논문

以异丙醇铝为原料采用溶胶-凝胶技术制备水合氧化铝粉体,通过TEM、XRD和IR等手段表征水合氧化铝粉体,研究了异丙醇铝与水的摩尔比(简称R)和水解温度对水合氧化铝粉体特性的影响规律.结果表明,R值对水合氧化铝的尺寸和形貌影响很大.当R为1:1或1:50时水合氧化铝粉体为无定形,且团聚严重;当R值为1:3时,水合氧化铝粉体结晶度高且具有好的分散性.当R值一定时,水解温度80℃比60℃更有利于异丙醇铝的水解.
이이병순려위원료채용용효-응효기술제비수합양화려분체,통과TEM、XRD화IR등수단표정수합양화려분체,연구료이병순려여수적마이비(간칭R)화수해온도대수합양화려분체특성적영향규률.결과표명,R치대수합양화려적척촌화형모영향흔대.당R위1:1혹1:50시수합양화려분체위무정형,차단취엄중;당R치위1:3시,수합양화려분체결정도고차구유호적분산성.당R치일정시,수해온도80℃비60℃경유리우이병순려적수해.
The hydrous alumina powders were fabricated using aluminum alkoxides as raw materials by sol-gel method.The effect of the mol ratio of aluminum alkoxides to H2O(in brief,R) and the hydrolysis temperature on the hydrous alumina powders was studied.The hydrous alumina powders were analyzed and characteristiced by TEM,XRD and IR.The results good dispersing.Under the condition of the same R value,the hydrous alumina powders were easily fabricated at 80℃than that at 60℃.