为了增强纳米SiO2在氟碳涂层中的分散性、润湿性,以提高氟碳涂料的性能,在纳米SiO2表面包覆聚苯乙烯(PS)进行改性,将改性后的SiO2粒子添加到三氟型FEVE氟碳涂料中,制成复合氟碳涂料,涂覆于马口铁或玻璃表面.采用傅里叶变换红外光谱(FTIR)和透射电镜(TEM)分析了纳米SiO2改性前后的结构,采用紫外分光光度计、接触角测量仪和电化学工作站测试了复合氟碳涂层的结构及性能.结果表明:PS成功地包覆在纳米SiO2粒子表面,且粒径大小均一;与不合SiO2氟碳涂料相比,改性后纳米SiO2粒子添加量为氟碳树脂的3％时,复合氟碳涂料的耐腐蚀性、抗紫外老化性、耐酸碱性、附着力以及其他物理性能都得到较大改善,且涂层表面具有较好的疏水自清洁性能.
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