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镁锂合金表面含聚苯胺复合涂层的防腐性能研究

, PP. 384-387

Keywords: 聚苯胺,聚苯胺,-,二氧化硅,镁锂合金,防腐蚀性能

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Abstract:

以过硫酸铵为氧化剂,磺基水杨酸为掺杂剂,用化学氧化法合成了聚苯胺-二氧化硅(PANI-SiO2)复合材料;通过FTIR,XRD和SEM对PANI-SiO2复合材料进行表征;以PANI-SiO2粉末为功能成分,环氧树脂为成膜物质,在镁锂合金表面制备了PANI-SiO2/环氧树脂复合涂层,用开路电位和交流阻抗谱研究了涂层的防腐蚀性能.结果表明,在3.0mass%的NaC1溶液中,PANI-SiO2/环氧树脂复合涂层具有很好的防腐性能,且认为PANI的存在使得镁锂合金表面生成一层钝化膜.

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