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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。
Abstract：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.
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基本信息:
DOI：10.14062/j.issn.0454-5648.2010.05.038
中图分类号:TB383.3
引用信息:
[1]姚义俊,谢爱根,李纯成,等.表面涂覆氮化铝粉末的抗水化性[J].硅酸盐学报,2010,38(05):913-917.DOI:10.14062/j.issn.0454-5648.2010.05.038.
基金信息:
南京信息工程大学科研基金(20080113)资助项目
2010-05-15
2010-05-15