Journal of Surface Science and Engineering (한국표면공학회지)

The Korean Institute of Surface Engineering (한국표면공학회)
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A study on the Corrosion Detection Sensor using Multi-Wall Carbon Nanotube

다중벽 탄소나노튜브를 이용한 철근 부식 검출 센서 제작 연구

  • Park, Soobin (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Kim, Sungyeon (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Lee, Sujeong (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Choi, Munjeong (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Hong, Yeongjun (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Kwon, Sungjun (Department of Civil and Environmental Engineering, Hannam University) ;
  • Yoo, Bongyoung (Department of Materials Science and Chemical Engineering, Hanyang University) ;
  • Yoon, Sanghwa (Department of Materials Science and Chemical Engineering, Hanyang University)
  • 박수빈 (한양대학교 재료화학공학과) ;
  • 김성연 (한양대학교 재료화학공학과) ;
  • 이수정 (한양대학교 재료화학공학과) ;
  • 최문정 (한양대학교 재료화학공학과) ;
  • 홍영준 (한양대학교 재료화학공학과) ;
  • 권성준 (한남대학교 토목환경공학과) ;
  • 유봉영 (한양대학교 재료화학공학과) ;
  • 윤상화 (한양대학교 재료화학공학과)
  • Received : 2021.08.26
  • Accepted : 2021.08.30
  • Published : 2021.08.31
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Abstract

In this study, rebar corrosion detection sensor was fabricated using multi-walled carbon nanotubes (MWCNTs). MWCNTs were pre-treated in the acid electrolytes to attach the carboxylic acid to the surface of MWCNTs. The fabricated sensor was attached on the surface of rebar and it detected the corrosion of steel using LCR meter with variation of capacitance. The surface morphology and electrical properties were characterized using scanning electron microscope (SEM) and electrical test equipment, respectively. To verify the corrosion detection characteristics, comparison experiment using plastic bar was performed. Moreover, mechanism of corrosion detection sensor was discussed.

Keywords

Acknowledgement

This research was supported by the National Research Foundation of Korea(NRF)(No. NRF-2020R1A2C2009462). Also this research was supported by Basic Science Research Program through the National Research Foundation of Korea(NRF) funded by the Ministry of Science, ICT & Future Planning(No. 2015R1A5A1037548)

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