Journal of Inorganic Materials ›› 2022, Vol. 37 ›› Issue (10): 1037-1042.DOI: 10.15541/jim20220221

• RESEARCH ARTICLE •     Next Articles

Hydrophobic BN Powders by Combustion Synthesis and Its Super-hydrophobic Coatings: Preparation and Property

MENG Qing1,2(), LI Jiangtao1,2()   

  1. 1. Key Laboratory of Cryogenics, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100190, China
    2. Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
  • Received:2022-04-15 Revised:2022-05-07 Published:2022-10-20 Online:2022-05-27
  • Contact: LI Jiangtao, professor. E-mail:
  • About author:MENG Qing (1994-), female, PhD candidate. E-mail:
  • Supported by:
    National Natural Science Foundation of China(52072381);National Natural Science Foundation of China(U1904217)


BN nanofilms with hierarchical structure exhibite super-hydrophobicity, but they are not suitable for the large-scale production and application due to their complicated preparation process and expensive cost. Compared with common BN nanofilms, the application of super-hydrophobic coatings based on hydrophobic BN powders are more convenient. Herein, the hydrophobic single-phase BN powders were prepared by combustion synthesis method through magnesiothermic reduction reaction and acid washing, showing the water contact angle at (144.6±2.4)°. Their hydrophobic character lies in the micro-nano hierarchical structure of BN particles. The super-hydrophobic BN/fluorosilicone resin coatings were prepared using the combustion-synthesized hydrophobic BN powders as fillers. The water contact angle and sliding angle for 30% BN/fluorosilicone resin coatings (in mass) are (151.2±0.7)° and 8°, respectively, which are comparable to that of BN nanofilms fabricated by CVD method reported in the literature. This method is a convenient way to prepare super-hydrophobic organic-inorganic composite coatings by utilizing the hydrophobicity of ceramic powders. Therefore, hydrophobic BN powders and super-hydrophobic BN/fluorosilicone resin coatings are expected to have wide application.

Key words: combustion synthesis, BN, hydrophobicity, super-hydrophobic coating

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