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Development of a simple method for the fabrication of s uperhydrophobic coating of nano TiO 2 /CaCO 3 composite

JIWEI HUANG1,2,3,* , YONGQUAN QING1, CHUANBO HU1, FALONG WANG1, QIAN MO1

Affiliation

  1. Department of Biological and Chemical Engineering, Guangxi University of S cience and Technology Technology, Liuzhou 545006, China
  2. Guangxi Key Laboratory of Green Processing of Sugar Resources , Guangxi University of Science and Technology Technology, Liuzhou 545006, China
  3. Key Laboratory for Processing of Sugar Resources of Guangxi Higher Educatio n Institutes, Guangxi University of Science and Technology Technology, Liuzhou 545006, China

Abstract

In this work, we have a facile and inexpensive method to fabricate a superhydrophobic surface with TiO 2 /CaCO 3 composite particles . The superhydrophobic surface was prepare d through mechanical stirring method of a mixture of nano TiO 2 and nano CaCO 3 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, Fourie r transform IR, thermo gravimetric analysis and differential scanning calorimeter. The results show that nano CaCO 3 surfaces are physically combined with nano TiO 2 particles and after modified composite particle is introduced into the hydrophobic methyl, a nd formation of double scale roughness structures. The as prepared coating showed self cleaning properties with a wate r contact angle as high as 162.1 ° and a sliding angle of 7°..

Keywords

Composite particles, Double scale roughness, Contact angle, Superhydrophobic.

Citation

JIWEI HUANG, YONGQUAN QING, CHUANBO HU, FALONG WANG, QIAN MO, Development of a simple method for the fabrication of s uperhydrophobic coating of nano TiO 2 /CaCO 3 composite, Optoelectronics and Advanced Materials - Rapid Communications, 8, 11-12, November-December 2014, pp.1225-1228 (2014).

Submitted at: Aug. 31, 2013

Accepted at: Nov. 13, 2014