한국섬유공학회지 (Textile Science and Engineering)

  • 제57권1호
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  • Pages.25-30
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  • 2020
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  • 1225-1089(pISSN)
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  • 2288-6419(eISSN)
한국섬유공학회 (The Korean Fiber Society)
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CNT 연속섬유의 전기전도성과 기계적 성질에 미치는 산처리 효과

Effect of Acid Treatment on the Electrical Conductivity and Mechanical Properties of Carbon Nanotube Continuous Fibers

  • 이일재 (충남대학교 유기소재.섬유시스템공학과) ;
  • 김경은 (충남대학교 유기소재.섬유시스템공학과) ;
  • 구수현 (충남대학교 유기소재.섬유시스템공학과) ;
  • 김지현 (충남대학교 유기소재.섬유시스템공학과) ;
  • 백두현 (충남대학교 유기소재.섬유시스템공학과)
  • Lee, Il Jae (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Kim, Kyung Eun (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Koo, Su Hyun (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Kim, Ji Hyun (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University) ;
  • Baik, Doo Hyun (Department of Advanced Organic Materials and Textile System Engineering, Chungnam National University)
  • 투고 : 2019.11.22
  • 심사 : 2020.02.12
  • 발행 : 2020.02.29
⟨ 이전 논문 다음 논문 ⟩

초록

Carbon nanotubes (CNTs) have been studied to fabricate continuous fibers or for assembly in various applications. However, the properties of CNT continuous fibers are not as advantageous as those of CNTs. In this study, CNT fibers produced by continuous spinning were subjected to acid treatment to improve the electrical conductivity and mechanical properties of the fibers. The CNT fibers were dipped into an acid mixture composed of sulfuric acid and nitric acid. The microstructures of the acid-treated CNT fibers were observed by scanning electron microscopy (SEM). X-ray photoelectron spectroscopy (XPS) was performed to confirm the surface functionalization of the acid-treated CNT fibers. The electrical conductivities of the acid-treated CNT fibers were determined by a 4-point probe method. The mechanical properties of the acid-treated CNT fibers were analyzed by a universal testing machine (UTM). The electrical conductivity of the acid-treated CNT fibers increased by 6.8 times and the tensile strength increased by 41% compared to the original CNT fibers.

키워드

과제정보

본 연구는 산업통상자원부 산업소재핵심기술개발사업(과제번호 10052838, 주관기관 숭실대학교 산학협력단)의 연구비 지원 하에 연구되었으며, 당 기관의 연구비 지원에 감사드립니다.

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