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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SiO_2、TiO_2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℃以上,滚动角小于5℃,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 free-radical copolymerization method was used to prepare the random copolymer of fluorine-modified acrylic resin and characterized. The influence of synthesis conditions on the hydrophobicity of the coating surface was studied. The results show that the superhydrophobic self-cleaning coating prepared by blending nano-SiO 2, TiO 2 and fluorine-modified acrylic resin by particle filling method has water contact angle above 160 ℃, roll angle less than 5 ℃, Hydrophobicity. Coating on the surface of the dirt covered by a certain degree of self-cleaning effect. Scanning electron microscopy and atomic force microscopy of the coating surface observation showed that the coating surface has a similar lotus leaf surface micro-nano dual microstructure.