| Title |
Characteristic Analysis of Functional Films according to the Annealing Temperature |
| Authors |
선박문(Shan, Bowen) ; 강현일(Kang, Hyunil) ; 최원석(Choi, Won Seok) ; 이경복(Lee, Kyoung-Bok) ; 마상견(Ma, Sanggyeon) |
| DOI |
https://doi.org/10.5370/KIEEP.2016.65.1.053 |
| Keywords |
Electrical insulator ; Functional coating ; Self-cleaning ; Anti-pollution ; Annealing temperature |
| Abstract |
Because of the low pollution resistance of the porcelain electrical insulator itself, in this work the anti-pollution performance of insulator was improved by using the functional coating. The ceramic substrates that components were same as the porcelain electrical insulator were used in this experiment. The functional films were coated on the ceramic substrate by using a spray coating method, and then the coated substrate were annealed under different coating condition such as natural curing and annealing temperature of 200^{\circ}C, 300^{\circ}C and 400^{\circ}C. Then, the contact angles of the coated surfaces were measured and the minimum angle (8.3^{\circ}) was obtained at 400^{\circ}C. The anti-contamination properties were measured, revealing that as the contact angle decreased, the anti-contamination properties improved. The hardness and adhesion were small at the natural curing condition however the excellent mechanical properties were obtained under higher temperature annealing. |