Preparation of superhydrophobic boehmite and anatase nanocomposite coating films

Hsing I. Hsiang, Ming Tsai Liang, Hung Chin Huang, Fu Su Yen

Research output: Contribution to journalArticlepeer-review

27 Citations (Scopus)


Developing a surface with water-repelling and self-cleaning ability has attracted much interest in nano-technology. We prepared superhydrophobic films in this study using a mixture of small anatase particles and large boehmite particles. Additionally, a N2 automated adsorption apparatus, atomic force microscopy and contact angle meter were employed to examine the effects of the added boehmite and anatase to the boehmite ratio on the roughness, micropore ratio and contact angle of the hydrophobic films. As boehmite addition increased from 0 to 8 wt.%, the average roughness increased up to 30 nm, which resulted in the water contact angles increasing from 105° to 155°. The hardness of the films increased from 6B to 2H. The addition of a proper amount of small anatase particles into the large boehmite particles could lead to increasing the micropore ratio in the films, which would enhance the contact angle.

Original languageEnglish
Pages (from-to)420-427
Number of pages8
JournalMaterials Research Bulletin
Issue number3
Publication statusPublished - 2007 Mar 22

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


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