Journal of the Korean institute of surface engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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Deposition of aluminum nitride nanopowders and fabrication of superhydrophobic surfaces

질화알루미늄 나노분말의 부착과 이를 활용한 초소수성 표면 제작

  • Kwangseok Lee (Alternative Fuels and Power System Research Center, Korea Research Institute of Ships & Ocean Engineering (KRISO)) ;
  • Heon-Ju Choi (Department of Mechanical Engineering, Mokpo National University) ;
  • Handong Cho (Department of Mechanical Engineering, Mokpo National University)
  • 이광석 (선박해양플랜트연구소 친환경연료추진연구센터) ;
  • 최헌주 (국립목포대학교 기계공학과) ;
  • 조한동 (국립목포대학교 기계공학과)
  • Received : 2024.01.09
  • Accepted : 2024.02.21
  • Published : 2024.02.29
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Abstract

Superhydrophobic surfaces have been expected to be able to provide considerable performance improvements and introduce innovative functions across diverse industries. However, representative methods for fabricating superhydrophobic surfaces include etching the substrate or attaching nanosized particles, but they have been limited by problems such as applicability to only a few materials or low adhesion between particles and substrates, resulting in a short lifetime of superhydrophobic properties. In this work, we report a novel coating technique that can achieve superhydrophobicity by electrophoretic deposition of aluminum nitride (AlN) nanopowders and their self-bonding to form a surface structure without the use of binder resins through a hydrolysis reaction. Furthermore, by using a water-soluble adhesive as a temporary shield for the electrophoretic deposited AlN powders, hierarchical aluminum hydroxide structures can be strongly adhered to a variety of electrically conductive substrates. This binder-free technique for creating hierarchical structures that exhibit strong adhesion to a variety of substrates significantly expands the practical applicability of superhydrophobic surfaces.

Keywords

Acknowledgement

본 과제(결과물)는 2023년도 교육부의 재원으로 한국연구재단의 지원을 받아 수행된 지자체-대학협력기반 지역혁신 사업의 결과입니다. (재단 과제관리번호 : 광주전남플랫폼 2021RIS-002)

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