涂层保护是石油储罐腐蚀防护的主要措施.为此,国内曾先后开发了醇酸银粉漆、氯磺化聚乙烯涂料、高氯化聚乙烯涂料、丙烯酸聚氨酯防腐蚀涂料、常温固化型氟碳涂料等,并在不同时期的工程建设中得到应用.不同的涂料具有不同的表面性能,设计部门和使用单位往往根据涂料性能和实际需求选择涂料.醇酸银粉漆和氯磺化聚乙烯涂料因其使用寿命短而被淘汰.对高氯化聚乙烯涂层、丙烯酸聚氨酯涂层、常温固化型氟碳涂层进行了光老化、盐雾、酸碱浸泡、表面能、耐沾污性等多种表面性能的测试评价.结果表明：常温固化型氟碳涂层综合性能优于高氯化聚乙烯涂层和丙烯酸聚氨酯涂层.

The external surface of oil tanks is exposed to atmosphere and suffers from wind,rain,sunshine,salt fog and industrial exhaust gas,which may cause severe corrosion of the tanks.To prevent the external surface from atmospheric corrosion and extend the service life of the tanks,various external anti-corrosion coatings,such as alkyl sliver coating,chlorosulphonated polyethylene coating,high chlorinated polyethylene coating,acrylate polyurethane coating and fluorocarbon coating,have been developed and used in China.Since different coatings have different surface properties,coatings are chosen by the designer,consumer or owner of the tanks according to the coating performance and individual project requirement.As the alkyl sliver coatings and chlorosulphonated polyethylene coatings have been eliminated through selection or contest due to their short service life,the comparison here is focused on the current popular coatings in terms of accelerated UV ageing (ASTM G153),salt spraying (ASTM B117),acid or alkaline immersion,surface energy and dirt resistance of the coatings.