Journal of Ocean Engineering and Technology (한국해양공학회지)

Korean Society of Ocean Engineers (한국해양공학회)
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Mechanical Behavior of Polymer Foam Reinforced with Silica Aerogel

실리카 에어로겔을 첨가한 폴리머 폼의 기계적 특성

  • Ahn, Jae-Hyeok (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Kim, Jeong-Hyeon (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Kim, Jeong-Dae (Department of Naval Architecture and Ocean Engineering, Pusan National University) ;
  • Park, Sungkyun (Department of Physics, Pusan National University) ;
  • Park, Kang Hyun (Department of Chemistry, Pusan National University) ;
  • Lee, Jae-Myung (Department of Naval Architecture and Ocean Engineering, Pusan National University)
  • 안재혁 (부산대학교 조선해양공학과) ;
  • 김정현 (부산대학교 조선해양공학과) ;
  • 김정대 (부산대학교 조선해양공학과) ;
  • 박성균 (부산대학교 물리학과) ;
  • 박강현 (부산대학교 화학과) ;
  • 이제명 (부산대학교 조선해양공학과)
  • Received : 2017.08.16
  • Accepted : 2017.12.20
  • Published : 2017.12.31
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Abstract

In the present study, silica-aerogel-polyurethane foams were synthesized to improve the mechanical characteristics and insulation performance of the polyurethane foam applied to a liquefied natural gas carrier at a cryogenic temperature of $-163^{\circ}C$. A silica-aerogel-polyurethane foam bulk was prepared using a homogenizer by varying the weight ratio of the silica aerogel (0, 1, 3, and 5 wt%), while maintaining the contents of the polyol, isocyanate, and blowing agent constant. Compression tests were performed at room and cryogenic temperatures to compare the mechanical properties of the silica-aerogel polyurethane foams. The internal temperature of the universal testing machine was maintained through the cryogenic chamber. The thermal conductivity of the silica-aerogel-polyurethane foam was measured using a heat flow meter to confirm the insulation performance. In addition, the effect of the silica aerogels on the cells of the polyurethane foam was investigated using FE-SEM and FTIR. From the experimental results, the 1 wt% silica aerogel polyurethane foam showed outstanding mechanical and thermal performances.

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References

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