Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Warming Ability and Antibacterial Properties of Rubber Sheets Containing PCM Microcapsules Sonochemically Coated with Photocatalytic ZnO Prepared Through Sonochemical Synthesis

초음파화학법으로 합성한 광촉매 산화아연 나노입자와 PCM 마이크로캡슐을 복합한 잠수복용 고무 시트의 보온성 및 항균성

  • Haneul Chae (Department of Material and Design Engineering, Kumoh National Institute of Technology) ;
  • Seung Han Lee (Department of Material and Design Engineering, Kumoh National Institute of Technology) ;
  • Byung Gil Min (Department of Material and Design Engineering, Kumoh National Institute of Technology)
  • 채하늘 (금오공과대학교 소재디자인공학과) ;
  • 이승한 (금오공과대학교 소재디자인공학과) ;
  • 민병길 (금오공과대학교 소재디자인공학과)
  • Received : 2023.03.27
  • Accepted : 2023.05.03
  • Published : 2023.06.30
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Abstract

Photocatalytic ZnO nanoparticles were synthesized through sonochemical synthesis process for depositing them onto PCM microcapsules for the purpose to provide warming ability and antibacterial activity to rubber sheets for diving suit. Spherical ZnO nanoparticles having average diameter of 50 nm could be synthesized in deionized water under ultrasonic irradiation for 30 min at pH 11.5. However, needle-like ZnO nanoparticles were obtained in ammonium hydroxide instead of deionized water as medium. It was found that spherical shape is more favorable for the sonochemical coating thereof onto PCM microcapsules. The formation of ZnO nanopartcles through Zn(OH)2 microparticles were confirmed using UV-Vis spectroscopy and X-ray diffractometry. Composite rubber sheets containing 0-25 wt% of PCM microcapsules with or without ZnO nanoparicles were prepared by solution casting. The composite rubber sheets exhibited much better warming ability compared than neat rubber sheet in cold water due to exothermic heat by PCM microcapsules. Moreover, The composite rubber sheets with ZnO nanoparicles showed excellent antibacterial activity against bacteria of S. aureus by showing 99.9 % reduction of bacteria.

Keywords

Acknowledgement

이 연구는 2022-2023년도 금오공과대학교 학술연구비로 지원되었음.

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