한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제25권4호
  • /
  • Pages.36-42
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  • 2021
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  • 1226-6027(pISSN)
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  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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항공우주용 리오셀계 흑연화 직물 개발

Development of Lyocell-Based Graphite Fabric for Aerospace

  • Park, Gil-Young (New Business Division, Dissol Co) ;
  • Kim, Nam-Kyu (New Business Division, Dissol Co) ;
  • Kim, Yun-Chul (The 4th R&D Institute, Agency for Defense Development) ;
  • Seo, Sang-Kyu (The 4th R&D Institute, Agency for Defense Development) ;
  • Chung, Yong-Sik (Department of Organic Materials & Fiber Engineering, Jeonbuk National University)
  • 투고 : 2020.12.04
  • 심사 : 2021.06.28
  • 발행 : 2021.08.31
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초록

본 연구에서는 리오셀 섬유를 사용하여 연속식 흑연직물을 제조함에 있어, 리오셀 섬유에 phosphoric acid, ammonium phosphate, diammonium hydrogen, triammonium phosphate의 인계난연제를 처리 후 열중량, 푸리에변환적외선분광, C-핵자기공명분광, X-선 회절, 중량 분석을 통해 나타나는 물리적, 화학적 구조 변화에 대하여 고찰하였다. 인계난연제에 의한 열적 거동을 분석을 통해 내염화 공정의 온도, 가스, 처리시간 등에 대한 조건을 설정하였다. 연속식 내염화, 탄화, 흑연화 공정을 통해 인장강도 1,007.19±11.47 N/5 cm와 수율 25.3%의 흑연직물을 제조하였다.

In this study, the impregnation of Lyocell fabrics was performed using phosphoric acid, ammonium phosphate, diammonium hydrogen, triammonium phosphate as phosphorus flame retardant, to fabricate continuous graphite fabrics using lyocell fiber. The physical and chemical structure changes were investigated by thermogravimetric, Fourier-transform infrared spectroscopy, C-nuclear magnetic resonance, X-ray diffraction, and weight analyses, By analyzing the thermal behavior of phosphorus flame retardant, conditions for the temperature, gas, and residual time of the pyrolysis process were set. Graphite fabrics with a tensile strength of 1,007.19±11.47 N/5 cm and yield of 25.3% were fabricated using continuous pyrolysis, carbonization and graphitization process.

키워드

과제정보

본 연구는 국방과학연구소의 지원으로 수행되었습니다(계약번호 UC170030GD).

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