화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Polymer(Korea), Vol.44, No.3, 342-348, May, 2020
DOI10.7317/pk.2020.44.3.342  Export Citation
가공 송전선 빙설해 예방을 위한 코팅재의 결빙 방지 및 방열 성능 평가
Evaluation of Icephobic and Dissipation Performance on Coating Materials for Preventing Overhead Transmission Line from Ice/Snow Damages
이형준, 김유섭, 조희재, 오승태1, 심재환1, 남영석1, 손송호2, 정용찬2, 한상철2, 이수열†
  • 충남대학교 신소재공학과
  • 1경희대학교 기계공학과
  • 2한국전력공사 전력연구원
Hyongjoon Lee, You Sub Kim, Hui Jae Cho, Seungtae Oh1, Jaehwan Shim1, Youngsuk Nam1, Song Ho Sohn2, Yong Chan Jung2, Sang Chul Han2, and Soo Yeol Lee†
  • Department of Materials Science and Engineering, Chungnam National University, Daejeon 34134, Korea
  • 1Department of Mechanical Engineering, Kyung Hee University, Yongin 17104, Korea
  • 2KEPCO Research Institute, Daejeon 34056, Korea
E-mail:
초록
본 연구에서는 송전선 결빙으로 인한 피해를 최소화하고자 상온 경화형 실리콘 고무에 입자 크기와 혼합 배열을 달리한 알루미늄 안료를 첨가하여 결빙 방지 코팅재를 제조하였다. 접촉각과 표면에너지 측정을 통해 표면 거칠기가 높은 코팅재가 뛰어난 발수성을 가짐을 확인하였다. 하지만, 결빙 방지 성능은 표면 거칠기와 경도가 낮을수록 우수하였다. 연속허용전류 인가 실험 결과, 실리콘 고무 코팅재의 방열성능이 가장 우수하였으며, 이는 실리콘 고무의 복사율이 가장 컸기 때문이다. 또한 가속 열화 시험과 얼음 탈착/부착 반복 시험을 통하여 실리콘 고무 코팅재는 장기간 물성 변화 없이 우수한 결빙 방지 성능이 유지됨을 알 수 있었다. 본 연구를 통하여 개발된 코팅재는 송전선의 결빙 방지를 위해 충분히 사용될 수 있는 가능성을 보여주었으며, 특히 우수한 방열특성으로 인하여 송전선의 온도도 낮추어 주기 때문에 여름철 전력 효율을 높이는데도 크게 기여를 할 수 있을 것으로 생각된다.
In this work, we manufactured icephobic coating materials, consisting of aluminum pigment-added room temperature vulcanized silicone rubber, by varying the particle size and type of the aluminum pigment. From the measurements of contact angle and surface energy, the coating with higher surface roughness revealed superior water repellency. However, icephobic performance was inversely proportional to surface roughness and hardness. The continuous allowable current application test showed that the silicone rubber (SR) coating exhibited the highest heat dissipation capacity due to its higher emissivity close to ~1. Furthermore, the SR coating revealed the remarkable durability for the icephobicity in the long-term period, as evidenced from the accelerated degradation test and cyclic icing/de-icing test. The developed coating material broadens industrial applicability as the icephobic coatings in transmission line. Moreover, it is expected that the superior heat dissipation capability of the SR coating would enhance the power efficiency in summer.
Keywords:transmission line;icephobic coating;aluminum pigment;ice adhesion strength;heat dissipation
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