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表面涂覆氮化铝粉末的抗水化性

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Abstract:

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。

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