NEPE推进剂/衬层/绝热层界面迁移组分定量分析  

Quantitative Analysis of Migrating Components in Interface of NEPE Propellant/Liner/Insulation

作　　者：黄志萍[1] 谭利敏[1] 曹庆玮[1] 马新刚[1] 

机构地区：[1]中国航天科技集团公司四院四十二所,湖北襄樊441003

出　　处：《含能材料》2010年第3期330-334,共5页Chinese Journal of Energetic Materials

基　　金：国家973项目(61338-02-01)

摘　　要：应用高效液相色谱(HPLC)、气相色谱(GC)对含硝酸酯的聚醚(NEPE)推进剂/端羟基聚丁二烯(HTPB)衬层/三元乙丙橡胶(EPDM)绝热层Φ25圆柱标准粘接试件粘结界面主要迁移组分进行了定量分析研究。研究结果表明,HPLC适合于同时测定粘接界面主要迁移组分增塑剂硝化甘油(NG)、丁三醇三硝酸酯(BTTN)、功能助剂AD;GC法适合于测定增塑剂癸二酸二辛酯(DOS)。采用建立的相应方法测定衬层中这四个组分,结果变异系数小于6%,样品回收率大于90%,测定方法准确度和精密度可满足一般测定要求。样品测定结果表明,推进剂中的NG、BTTN、AD可向衬层和绝热层迁移,其中衬层中含量较高,AD比NG、BTTN迁移更为明显,且AD易在衬层富聚。衬层中的DOS则只向绝热层迁移,不向推进剂迁移。The main migrating components in the interfaces of standard Φ25 mm cylinder samples of nitrate ester plasticized polyether（NEPE） based propellant/hydroxyl terminated polybutadiene（HTPB） based liner/ethylene-propylene-diene terpolymer（EPDM） based insulation were quantified by using high performance liquid chromatography（HPLC） and gas chromatography（GC）.The results show that plasticizers of nitroglycerin（NG） and 1,2,4-butanetriol tri-nitrate（BTTN）,as well as function reagent of AD,which are the main components migrating in the interface,are separated well simultaneously by HPLC,while plasticizer of dioctyl sebacate（DOS） is only found by GC.The recovery ratios of the established HPLC method for determination of NG,BTTN and AD,and GC method for determination of DOS are more than 90%,and the coefficients of variation are less than 6% for these components in the liner.The precision and accuracy of the methods are satisfied for common determination.The results show that NG,BTTN and AD in the propellant can migrate to the liner and insulation with more content in the liner,while AD migrates more obviously than NG and BTTN,and AD even concentrates in the liner.DOS in the liner only migrates to the insulation,not to the propellant.

关 键 词：高分子化学 NEPE推进剂 界面 迁移 定量分析 高效液相色谱(HPLC) 气相色谱(GC) 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]