Effects of Annealing Ambient on the Anti-Pollution and Mechanical Properties of Functional Film Coated on the Ceramic Substrate

세라믹 기판위에 코팅된 기능성 필름의 열처리 분위기에 따른 내오염 및 기계적 특성

Shan, Bowen;Kang, Hyunil;Choi, Won Seok;Joung, Yeun-Ho

  • Received : 2016.03.02
  • Accepted : 2016.03.10
  • Published : 2016.04.01


For the improvement of the anti-pollution properties of porcelain electrical insulators, in this study, we have applied the functional film to the surface of insulator. The functional films were coated on the ceramic substrates which components were like the porcelain electrical insulator. The coating material was applied to ceramic substrate by spray coating method and then the film was cured at around $300^{\circ}C$ for 10 minutes with different gas ambient, such as $O_2$, $N_2$, and only vacuum. We have measured the contact angle of the coated surface, and obtained the lowest angle ($8.9^{\circ}$) and a strong hydrophilic property at vacuum condition. The anti-pollution properties were measured, revealing that as the contact angle decreased, the anti-pollution properties improved. The mechanical hardness and adhesion were both excellent regardless of the annealing ambient.


Electrical insulator;Functional coating;Self-Cleaning;Anti-Pollution;Annealing ambient


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Supported by : 국토교통부