摘要
铝及其合金具有低密度、高比强度等优点,在很多行业被广泛使用。然而,由于其耐蚀性一般,很大程度上限制了它的应用。提高其耐蚀性的有效手段之一就是采用溶胶-凝胶技术在铝合金表面制备防腐蚀膜层,该技术具有操作简单、节能环保等优点,有望取代对环境不友好的铬酸盐处理技术。对铝合金表面溶胶-凝胶氧化物、有机、有机改性硅酸盐、含掺杂物有机改性硅酸盐复合等防腐蚀膜层的研究进展进行了综述,并展望了未来可能的研究方向。
Aluminum and its alloys have many excellent properties, such as the low density and high strength/weight ratio, and so on. They are widely used in many industries. However, poor resistance to corrosxon limits their application. One of the effective ways to improve their corrosion resistance is preparation of anti-corrosion coatings on aluminum alloys by sol-gel technology, which has advantages of simple operation, environmental protection and so on. It is expected to replace the conventional harmful chromate treatment technology. In this paper, sol-gel anti-corrosion coatings on aluminum alloys, such as oxides, organic coatings, ormosil coatings, dopant-containing ormosil coatings are reviewed. The challenges for industrial productions and future research on sol-gel corrosion protective coatings are also briefly discussed.
出处
《腐蚀与防护》
CAS
北大核心
2013年第12期1045-1052,共8页
Corrosion & Protection
基金
国家自然科学基金(50701006
51271031)
中央高校基本科研业务费专项资金(FRF-SD-12-027A)
关键词
铝合金
溶胶-凝胶
防腐蚀
膜层
aluminum alloy
sol-gel
anti-corrosion
coating
