采用溶胶-凝胶技术,以正硅酸乙酯为基本原料,配制二氧化硅溶胶-凝胶液,采用浸涂法在牙科用铜合金表面涂层:用SEM、DTA、ICP等方法对二氧化硅溶胶-凝胶涂层的形貌及特性进行了研究与分析.结果表明,该涂层在乳酸腐蚀液中能减少合金离子的释放,提高了铜合金的抗腐蚀性能,铜合金与涂层的结合中强度可达40MPa.
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