用自由基共聚法制备氟改性丙烯酸树脂的无规共聚物并对其进行了表征, 研究了合成工艺条件对涂层表面疏水性的影响。结果表明, 采用粒子填充法将纳米SiO2、TiO2与氟改性丙烯酸树脂共混后制备的超疏水自清洁涂层, 水在其表面的接触角达160 o以上, 滚动角小于5o, 具有超疏水性。涂层对其表层覆盖的污物具有一定的自清洁作用。扫描电子显微镜和原子力显微镜对涂层表面观察结果表明, 涂层表面具有类似荷叶表面的微米-纳米双微观结构。
The fluoropolyacrylate was prepared by the free radical copolymerization. The influence of process conditions on hydrophobicity of the coating was investigated. The super-hydrophobic and selfcleaning coating was prepared by particle-filling process. The results show that the contact angle of the coating is above 160? and rolling angle is less than 5?. This coating also has self-cleaning effect on the pollutants. The coating surface processes natural lotus-like micro- and nano-hierarchical structure.
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