화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Journal of Chemical Engineering, Vol.33, No.10, 3016-3020, October, 2016
DOI10.1007/s11814-016-0173-8  Export Citation
Combustion of boron particles coated with an energetic polymer material
Weon Gyu Shin, Doohee Han1, Yohan Park2, Hyung Soo Hyun3, Hong-Gye Sung1, †, and Youngku Sohn2, †
  • Department of Mechanical Engineering, Chungnam National University, Daejeon 34134, Korea
  • 1School of Aerospace and Mechanical Engineering, Korea Aerospace University, Goyang, Gyeonggi-do 21071, Korea
  • 2Department of Chemistry, Yeungnam University, Gyeongsan, Gyeongbuk 38541, Korea
  • 3The Fourth R&D Institute, Agency for Defense Development, Daejeon 34188, Korea
E-mail:,
Elemental boron has attracted considerable attention as a potential high energetic material for explosives and propellants. However, its use has been hindered by its high vaporization temperature and surface oxide layer. In this study, boron particles were coated with glycidyl azide polymer (GAP) to improve their combustion characteristics. The coated particles were characterized by transmission electron microscopy, X-ray photoelectron spectroscopy (XPS) and Fourier-transform infrared spectroscopy. XPS performed before and after Ar+ ion sputtering confirmed that the azide (-N3) group of GAP was positioned at the proximity of the boron surface. In addition, B@GAP particles could be decorated with metallic Ag (~10 nm) nanoparticles. The combustion characteristics were examined using a newly designed pre-heated (1,800 K) drop tube furnace and a high speed camera. Two stages of combustion were observed for a dust cloud of GAP-coated boron particles. The burning time was estimated to be approximately 37.5msec.
Keywords:Boron;Glycidyl Azide Polymer;Drop Tube Furnace;Combustion;Burning Time
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