화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Applied Chemistry for Engineering, Vol.30, No.2, 178-185, April, 2019
DOI10.14478/ace.2018.1119  Export Citation
결정화에 의한 4성분계 에너지 복합체 제조 및 열분해 특성
Preparation of Quaternary Energetic Composites by Crystallization and Their Thermal Decomposition Characteristics
김병수, 김재경, 안익성1, 김현수2, 구기갑†
  • 서강대학교 화공생명공학과
  • 1연세대학교 화공생명공학과
  • 2국방과학연구소
Byoung-Soo Kim, Jae-Kyeong Kim, Ik-Sung Ahn1, Hyoun-Soo Kim2, and Kee-Kahb Koo†
  • Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea
  • 1Department of Chemical and Biomolecular Engineering, Yonsei University, Seoul 03722, Korea
  • 2Agency for Defense Development, Daejeon 34186, Korea
E-mail:
초록
결정화/응집 공정을 이용하여 금속/금속산화물/분자화약/산화제로 구성된 구형 4성분계 복합체 3종을 제조하였다. 열중량 분석(TGA) 및 시차주사열량법(DSC)에 의한 열 특성 분석 결과 복합체를 이룬 분자화약의 분해 구간이 단축됨을 관찰하였고, ammonium perchlorate(AP) 분해 생성물인 HCl 및 ClO2에 의한 자가 촉매 반응에 의한 것으로 해석된다. 활성화 에너지 분석 결과 분자화약 분해 종료 구간에서 급격하게 활성화 에너지가 감소함을 확인할 수 있었으며, 이는 분자화약 분해 생성물 중 공통으로 발생하는 HNO2에 의한 것으로 판단된다. 본 연구에서 복합체 열분해 분석 결과로부터 Distributed Activation Energy Model (DAEM)에 의해 모사된 활성화 에너지가 model-fitting 분석법인 Kissinger-Akahira-Sunose와 Flynn-Wall-Ozawa model에 의한 모사치보다 정확도가 대단히 우수함을 알 수 있었다.
Three spherical quaternary composites composed of metal/metal oxide/high explosive/oxidizer were prepared by a crystallization/ agglomeration process. From the characteristics of composites by thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC), the shortening of the decomposition zone of high explosives in the quaternary composite was observed, which may be attributed to the autocatalytic reaction caused by ClO2 or HCl which are ammonium perchlorate (AP) degradation products. The activation energy analysis showed that the activation energy abruptly decreases at the end of the decomposition zone of high explosives, and it was considered to be caused by HNO2 which is common in decomposition products of high explosives. The activation energy predicted from complex pyrolysis results by the distributed activation energy model (DAEM) showed much better in accuracy than those by model-fitting methods such as Kissinger-Akahira-Sunose and Flynn-Wall-Ozawa models.
Keywords:Ammonium perchlorate;Drowning-out;Thermal decomposition
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