Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Surface Modification of High Energetic Materials by Molecular Self-assembly

자기조립법을 이용한 고에너지물질의 표면개질 연구

  • Kim, Ja-Young (Energetic Material & Pyrotechnics Department, Hanwha Corporation R&D Institute) ;
  • Jeong, WonBok (Energetic Material & Pyrotechnics Department, Hanwha Corporation R&D Institute) ;
  • Shin, Chae-Ho (Department of Chemical Engineering, Chungbuk National University) ;
  • Kim, Jin-Seok (The 4th R&D Institute - 2nd Directorate, Agency for Defense Development) ;
  • Lee, Keundeuk (The 4th R&D Institute - 2nd Directorate, Agency for Defense Development) ;
  • Lee, Kibong (The 4th R&D Institute - 2nd Directorate, Agency for Defense Development)
  • Received : 2015.12.03
  • Accepted : 2016.03.15
  • Published : 2016.04.01
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Abstract

Self-assembly of organic molecules is formed spontaneously on surfaces by electrostatic interaction with substrate. This research has shown that the self-assembly improves safety and handling tractability of high-energetic materials (HEMs). According to the recent study, control of the specific crystal size for reducing the internal defects is mightily important, because the internal defects are a factor in unstability of HEMs. In turn, we performed self-assembly of organic molecules and HEMs by using nano-sized HEMs, which were produced by drowing-out or milling/crystallization. Surface modification efficiency was decided by size distribution, zeta-potential, friction sensitivity and electrostatic charge.

유기 분자의 자기조립 다분자막은 기질의 표면에서 전자기적인 상호작용을 통해 자발적으로 형성된다. 본 연구에서는 이 기술을 응용하여 고에너지물질의 안전성과 취급용이성이 향상됨을 입증하였다. 최근 다양한 연구에서 고에너지물질 결정 내부의 결함은 물질의 안전성을 저하시키는 요인이므로, 결정 입자의 크기를 감소시키는 연구가 중요시되고 있다. 이에 따라, 결정화 방법을 통해 제조된 나노 수준의 고에너지물질을 사용하였으며, 자기조립 다분자막 기술을 응용하여 물질의 안전성을 향상시켰다. 입도/표면전하/마찰감도/정전기 전하 등을 측정하여 표면개질 여부를 확인하였다.

Keywords

References

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