含DNTN的CMDB推进剂的能量特性的计算及其组分的相容性  

Computation of Energetic Characteristics of CMDB Propellant Containing DNTN and Compatibility of Their Components

作　　者：李祥志[1] 毕福强[1] 廉鹏[1] 李辉[1] 刘国权[1] 王伯周[1] LI Xiang-zhi;BI Fu-qiang;LIAN Peng;LI Hui;LIU Guo-quan;WANG Bo-zhou(Xi′an Modern Chemistry Research Institute,Xi′an 710065,China)

机构地区：[1]西安近代化学研究所,陕西西安710065

出　　处：《含能材料》2018年第4期311-315,共5页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金(21243007)

摘　　要：根据最小自由能法,采用NASA-CEA软件,计算了含2,3-二羟甲基-2,3-二硝基^(-1),4-丁二醇四硝酸酯(DNTN)的复合改性双基(CMDB)推进剂能量特性。采用差示扫描量热法研究了DNTN和CMDB推进剂组分的相互作用。结果表明,DNTN替代硝化棉(NC)+硝化甘油(NG)/黑索今(RDX)/Al推进剂配方中的RDX,使体系的理论比冲最大,达2666.5 N·s·kg^(-1),特征速度逐渐增大,氧系数逐渐提高。DNTN全部替代NC+NG/高氯酸铵(AP)/Al推进剂配方中的AP,使理论比冲最大,达2669.1 N·s·kg^(-1),燃气平均分子量降低,燃温升高,表明CMDB推进剂体系中的DNTN有良好的应用潜力。DNTN与NC/NG、RDX、奥克托金(HMX)、六硝基六氮杂异戊兹烷(CL-20)、吉纳(DINA)和炭黑(C.B)之间没有明显的相互作用,与邻苯二甲酸铅(φ-Pb)和1,3-二甲基^(-1),3-二苯基脲(C2)之间相互作用明显。The energy characteristics of CMDB propellant containing 2,3-bis(hydroxymethyl)-2,3-dinitro-1,4-butanediol tetranitrate(DNTN)were calculated by NASA-CEA software based on the minimum free energy method.The interaction of DNTN with components of composite modified double base(CMDB)propellant was studied by differential scanning calorimetry(DSC).Results show tthat The substitution of RDX in nitrocellulose(NC)+nitroglycerin(NG)/Hexogen(RDX)/Al propellant formulation for DNTN makes the system have the greatest theorety specific impulse,reaching 2666.5 N·s·kg-1,the characteristic velocity increase gradually,the oxgen coefficient improve gradually.The substitution of all AP in NC+NG/AP/Al propellant formulation for DNTN makes the system have the greatest theory specific impulse,up to 2669.1 N·s·kg-1,the average molecular weight of combustion gases decrease and the combustion temperature rise,indicating that DNTN has good application potential in CMDB propellant.There are not obvious interactions between DNTN with(NC/NG),RDX,Octogen(HMX),hexanitrohexaazaiso-wurtzitane(CL-20),carbon black(C.B)and N-nitrodihydroxyethylaminedinitrate(DINA),and there are strong interaction between DNTN with lead phthalate(φ-Pb)and 1,3-dimethyl-1,3-diphenylurea(C2).

关 键 词：2 3-二羟甲基-2 3-二硝基-1 4-丁二醇四硝酸酯(DNTN) 改性双基推进剂(CMDB) 能量特性 相容性 差示扫描量热法(DSC) 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]