Development of a simple method for the fabrication of superhydrophobic coating of nano TiO2/CaCO3 composite

作者：Huang, Jiwei^*; Qing, Yongquan; Hu, Chuanbo; Wang, Falong; Mo, Qian

来源：Optoelectronics and Advanced Materials-Rapid Communications, 2014, 8(11-12): 1225-1228.

• Composite particles
• Double-scale roughness
• Contact angle
• Superhydrophobic

In this work, we have a facile and inexpensive method to fabricate a superhydrophobic surface with TiO2/CaCO3 composite particles. The superhydrophobic surface was prepared through mechanical stirring method of a mixture of nano-TiO2 and nano-CaCO3 suspensions on a substrate, followed by modification of a low-surface-energy of oleic acid. The surfaces were characterized by field-emission scanning electron microscopy, Fourier transform IR, thermo gravimetric analysis and differential scanning calorimeter. The results show that nano-CaCO3 surfaces are physically combined with nano-TiO2 particles, and after modified composite particle is introduced into the hydrophobic methyl, and formation of double-scale roughness structures. The as-prepared coating showed self-cleaning properties with a water contact angle as high as 162.1 degrees and a sliding angle of 7 degrees.

• 出版日期2014-12
• 单位广西大学