JAXA Repository / AIREX 未来へ続く、宙(そら)への英知
titleAb initio計算と熱分析によるアンモニウムジニトラミド混合系の反応解析
Other TitleReaction analysis on ammonium dinitramide mixture using ab initio calculations and thermal analysis
Author(jpn)塩田, 謙人; 伊里, 友一朗; 羽生, 宏人; 三宅, 淳巳
Author(eng)Shiota, Kento; Izato, Yuichiro; Habu, Hiroto; Miyake, Atsumi
Author Affiliation(jpn)横浜国立大学; 横浜国立大学; 横浜国立大学 : 宇宙航空研究開発機構宇宙科学研究所宇宙飛翔工学研究系(JAXA)(ISAS); 横浜国立大学
Author Affiliation(eng)Yokohama National University; Yokohama National University; Yokohama National University : Department of Space Flight Systems, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA)(ISAS); Yokohama National University
Issue Date2019-02-28
Japan Aerospace Exploration Agency (JAXA)
Publication title宇宙航空研究開発機構研究開発報告: 高エネルギー物質研究会: 平成30年度研究成果報告書
JAXA Research and Development Report: Technical Report of The Research Activity for High Energy Materials (2018)
Start page25
End page31
Publication date2019-02-28
Abstractアンモニウムジニトラミド(ADN)から構成される高エネルギーイオン液体系推進剤(EILPs)の研究が進められている.ADN系EILPsの凝縮相反応は燃焼反応に影響することが分かっている.そこで,本研究ではADN混合系の凝縮相における反応解析を目的とし,ADNの熱分解初期に生成するNO2・による水素引き抜き反応に着目した.NO2・が関与する反応の反応物,遷移状態,生成物のpotential energy surfaceをab initio計算から求めた.さらに,ADN 混合系の熱挙動を示差走査熱量計(DSC)を用いて測定した.計算とDSCの結果から,ADN 混合系の凝縮相反応においてNO2・による水素引き抜き反応が反応初期の発熱に重要であることが明らかになった. 加えて,アルキル基を有し炭素鎖が長い物質はADNと反応性が高いと考えられた.
Ammonium dinitramide (ADN) has been studied as ADN-based energetic ionic-liquid propellants (EILPs). Thermal decomposition of ADN in condensed phase affects combustion of pure ADN and ADN-based EILPs. Therefore, the objective of this study is reaction analysis on ADN mixtures in condensed phase. To obtain deep understanding of reactivity of ADN mixtures in condensed phase, this study focused on hydrogen abstracting reaction by NO2・ formed from thermal decomposition of ADN. We calculated potential energy surface of reaction with NO2・ and substance mixed with ADN using ab initio calculation. Thermal analysis was conducted to understand thermal property of ADN mixtures using differential scanning calorimetry (DSC). The calculation and DSC results show hydrogen-abstracting reaction by NO2・ is important in condensed phased reaction of ADN mixture and, substance that has methyl group and carbon straight chain has high reactivity with ADN.
Description形態: カラー図版あり
Physical characteristics: Original contains color illustrations
KeywordsAmmonium dinitramide; Nitrate salts; Amides; Energetic ionic liquid propellants (EILPs); Hydrogen-abstracting
Document TypeTechnical Report
JAXA Category研究開発報告
NASA Subject CategorySpacecraft Propulsion and Power
Report NoJAXA-RR-18-006

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