表面涂覆氮化铝粉末的抗水化性  

WATER-RESISTANCE OF SURFACE COATED ALUMINUM NITRIDE POWDER

作　　者：姚义俊[1] 谢爱根[1] 李纯成[1] 丘泰[2] 

机构地区：[1]南京信息工程大学数理学院,南京210044 [2]南京工业大学材料科学与工程学院,南京210009

出　　处：《硅酸盐学报》2010年第5期913-917,共5页Journal of The Chinese Ceramic Society

基　　金：南京信息工程大学科研基金(20080113)资助项目

摘　　要：研究了表面涂覆硬脂酸和吐温80对氮化铝粉末抗水化性能的影响。经过表面改性工艺处理的氮化铝粉末在20～60℃具有很好的化学稳定性,溶液pH值在9.88基本保持不变;改性处理的氮化铝粉末在水中长时间浸泡,X射线衍射分析表明其物相为AlN相。通过表面改性工艺在氮化铝粉末表面包裹一层有机化合物,能有效地抑制氮化铝与水的反应,阻碍水分子向氮化铝粉末表面侵蚀,提高氮化铝粉末在潮湿环境的抗水化能力。The chemical stability of aluminum nitride powder surface-coated with stearic acid and Tween-80 in aqueous environment was studied. The treated powder did not react with water at 20–60 ℃ at a constant pH value of 9.88. The result of X-ray diffraction shows that there is mainly AlN phase when the treated powder directly contacted with water for a long period of time. The surface of aluminum nitride powder coated with hydrophobic films can form a diffusion barrier between water and AlN surface, restrain hydrolysis reaction and increase the water-resistance of AlN powder in wet environment.

关 键 词：氮化铝粉末 表面改性处理 抗水性 

分 类 号：TG146[一般工业技术—材料科学与工程]