摘要
基于含氟聚氨酯和纳米SiO2的协同作用,在铝合金表面成功制备了一层超疏水涂层.用红外光谱、扫描电镜和电化学测试等技术对超疏水涂层进行了表征和分析.红外光谱结果表明,硅烷偶联剂(A1100)成功键合到纳米SiO2表面.扫描电镜和接触角测定仪对涂层的表面形貌表征结果表明,涂层表面存在微米-亚微米尺度的粗糙结构,接触角可达到156°,滚动角小于5°.电化学测试(交流阻抗和极化曲线)结果表明,所得到的涂层极大地提高了铝合金的耐蚀性能.
Based on the cooperation of the fluorated polyurethane and nano silicon oxide, superhydrophobic coating was successfully fabricated on the surface of aluminium alloy. The superhydrophobic coating was characterized and investigated by P-T-IR.SEM and electrochemical measurement. The P-T-IR result showed that silane coupling reagent （A1100） was grafted on the surface of the nano-disilicon oxide. Scanning electronic microscopy（SEM） and optical contact angle meter（0） indicated that rough structure was present on the surface of the coating, and the contact angle could reach up to 156° with sliding angle smaller than 5°. The results of electrochemical measurements （EIS and polarization curve） showed that anti-corrosion property of aluminium alloy was greatly improved.
出处
《物理化学学报》
SCIE
CAS
CSCD
北大核心
2007年第10期1631-1636,共6页
Acta Physico-Chimica Sinica
关键词
超疏水
硅烷偶联剂
电化学测试
耐蚀性
Superhydrophobic
Silane coupling reagent
Electrochemical measurement
Anti-corrosion property
