Journal of the Korean Recycled Construction Resources Institute (한국건설순환자원학회논문집)

Korean Recycled Construction Resources Institute (한국건설순환자원학회)
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A Basic Study on the Marine Anti-Fouling Coating Using Cellulose Nanofiber

셀룰로오스 나노섬유를 활용한 해양 방오 코팅제에 관한 기초 연구

  • Jang, Nag-Seop (Department of Civil Engineering, Gyeongsang National University) ;
  • Kim, Tae-Kyun (Department of Civil Engineering, Gyeongsang National University) ;
  • Oh, Hong-Seob (Department of Civil Engineering, Gyeongsang National University)
  • 장낙섭 (경상국립대학교 토목공학과) ;
  • 김태균 (경상국립대학교 토목공학과) ;
  • 오홍섭 (경상국립대학교 토목공학과)
  • Received : 2021.09.30
  • Accepted : 2021.11.08
  • Published : 2021.12.30
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Abstract

In this study, the mechanical property of anti-fouling coating using CNF was evaluated to prevent the durability and stability of structure exposed the marine environment. Anti-fouling coating using CNF was prepared by CNF, AKD and waste glass powder, and contact angle test, drying time, viscosity analysis and microstructure were performed. When coating on one number of times, It was showed to relatively high hydrophobic performance in steel. And It was confirmed that the contact angle increased as the content of AKD increased in cement mortar. When coating on three number of times, the surface was confirmed super-hydrophobic at maximum of 151.6°. When mixing waste glass powder, the surface was showed to relatively high hydrophobic. It is pseudo plastic fluid when CNF and distilled water were prepared in a ratio of 1:1, And Anti fouling coating is judged to be suitable for use as coating on marine structure.

본 연구에서는 해양환경에 노출된 구조물의 내구성과 안전성 저하를 방지하는 셀룰로오스 방오 코팅제에 대한 기본적인 역학 성능을 평가하였다. 셀룰로오스 나노섬유와 AKD 및 폐유리 미분말을 주요 재료로 구성하여 제조하였으며, 접촉각 시험, 건조 시간, 점성 분석, 미세구조 분석을 실시하였다. 셀룰로오스 방오 코팅제를 1회 코팅할 경우 상대적으로 강재 시편에서 높은 소수성능을 발휘하는 것으로 나타났으며, 시멘트 모르타르에서는 AKD 함유량이 증가할수록 접촉각이 증가하는 것이 확인되었다. 3회 코팅시 최대 151.6°의 초소수성을 표면을 확인하였으며, 폐유리 미분말 혼입시 상대적으로 높은 소수성능을 갖는 것이 나타났다. 셀룰로오스와 증류수를 1:1 비율로 제조할 경우 의가소성 유체에 해당하여 코팅제로의 활용에 적합할 것으로 판단되었다.

Keywords

Acknowledgement

본 연구는 국토교통과학기술진흥원의 국토교통기술촉진연구사업(21CTAP-C164039-01)의 지원에 의해 수행되었습니다.

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