Journal of the Korean Society of Propulsion Engineers (한국추진공학회지)

The Korean Society of Propulsion Engineers (한국추진공학회)
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Surface Tension Change of Simulant Gel Propellant according to the Metal Particle Addition

금속입자 첨가에 따른 모사젤 추진제의 표면장력 변화

  • Kim, Kyehwan (Graduate School of Aerospace and Mechanical Engineering Korea Aerospace University) ;
  • Kim, Sijin (Graduate School of Aerospace and Mechanical Engineering Korea Aerospace University) ;
  • Han, Seungjoo (Graduate School of Aerospace and Mechanical Engineering Korea Aerospace University) ;
  • Kim, Jinkon (School of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Moon, Heejang (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • Received : 2016.12.27
  • Accepted : 2017.03.30
  • Published : 2017.06.01
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Abstract

In this study, the surface tension of simulant gel propellants was measured by Du $No{\ddot{u}}y$ ring method. The variation of the surface tension was investigated with respect to the amount of the gelling agent, and metal particle addition. Distilled water was used as the base fluid for the preparation of the simulant gel propellant where Carbopol 941 was used as a gelling agent and SUS304 spherical metal particles (mean diameter : 100 nm) as simulant energetic particles. As a result of measurements, surface tension increased with increasing gelling agent concentration while, in the presence of metal particle, different behavior of surface tension has been observed.

본 연구에서는 모사젤 추진제의 표면장력을 적환법(Du $No{\ddot{u}}y$ ring method)을 이용하여 측정하고 젤화제 및 금속입자 첨가량에 따른 표면장력 변화를 분석하였다. 금속입자 첨가에 따른 영향을 파악하기 위해 증류수를 기반유체로 그리고 젤화제는 Carbopol 941을 사용하였으며, 금속입자로는 평균입도 100 nm의 구형 스테인리스 304 입자를 사용하였다. 측정결과, 표면장력은 젤화제의 첨가량 증가에 따라 증가하였으나, 모사젤 추진제 내에 금속입자 첨가에 따른 표면장력은 다른 경향을 나타내었다.

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References

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