推进剂安定剂与硝酸酯(NG-NC)相互作用研究  

Interaction of stability and nitric acid ester( NG-NC) of propellant

作　　者：丁黎[1] 郑朝民[1] 翟高红[2] 王琼林[1] 

机构地区：[1]西安近代化学研究所,西安710065 [2]西北大学化学系,西安710068

出　　处：《固体火箭技术》2014年第4期525-529,共5页Journal of Solid Rocket Technology

摘　　要：采用高压差示扫描量热(PDSC)和绝热加速量热(ARC)2种方法,研究了DPA、C2、AKII与NC-NG的相互作用;采用密度泛函理论B3LYP方法和6-31g(d)基组,优化得到了安定剂C2、AKII及其与H+作用后各中间体的稳定构型,计算了安定剂结合H+的反应能变,以解释该3种安定剂安定化作用的强弱。结果表明,3种安定剂与硝酸酯存在明显的相互作用,且安定剂对硝酸酯化学稳定性的影响由强到弱依次为DPA>C2>AKⅡ,与安定剂亲核性顺序一致。The interaction of stability and nitric acid ester were studied by PDSC and ARC.The result show that decomposition temperature of nitric acid ester decreases because of adding stability. The structures of C2, AKII and its complexes with the H＋, namely（ C2＋H）＋（ C=O） ,（ AKⅡ＋H）＋（ C=O） ,（ AKⅡ＋H）＋（ C-N） ,were optimized using the density function theory（ DFT） at the B3LYP/6-31g（d）level.The energy of stability reacted with H＋ calculated at B3LYP/6-31g（d）was used to explain ability of stability.It was obvious interaction between stability and nitric acid ester,and the influence on chemical stability of nitric acid ester from strong to weak were DPA〉C2〉AKⅡ,which is in accord with nucleophilic ability.

关 键 词：物理化学 相互作用 安定剂 硝酸酯 化学稳定性 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程]