CL-20/HATO复合物的制备、表征及性能

Preparation,Characterization and Properties of CL-20/HATO Composite

以二水合1,1'-二羟基-5,5'-联四唑(H2DHBT)和羟胺水溶液为原料,通过中和反应,采用原位结晶法在六硝基六氮杂异伍兹烷(CL-20)水悬浮液中制备了一种CL-20与1,1'-二羟基-5,5'-联四唑二羟胺盐(TKX-50,HATO)的复合物样品。采用扫描电子显微镜(SEM)、傅里叶变换红外图谱(FT-IR)、核磁共振(NMR)以及X射线衍射(XRD)表征了复合物的形貌和结构,研究了不同工艺条件对复合物样品形貌的影响;利用差示扫描量热技术(DSC)分析了其热性能,按GJB772A^(-1)997方法测试其撞击、摩擦感度;使用Urizar公式计算了其爆速。结果表明,获得附着完整均匀的CL-20/HATO复合物样品工艺条件为:反应温度90℃,反应时间10 min,羟胺水溶液的滴加速率为60 mL·min^(-1),制得的CL-20/HATO复合物样品中CL-20晶型未发生变化,由定量碳谱所得复合物质量比为m(CL-20)∶m(HATO)=55∶45;复合物存在两个放热分解峰,其峰温分别为238.3℃和250.7℃,特性落高为44.7 cm,撞击爆炸概率为52%,摩擦爆炸概率为76%;复合物样品的理论爆速为9516 m·s^(-1)。

A composite sample of CL-20 and dihydroxylammonium 5,5'-bistetrazole-1,1'-diolate(TKX-50,HATO)was pre-pared by in-situ crystallization method in aqueous suspension of CL-20 using 1,1'-dihydroxy-5,5'-bitetrazole(H2DHBT)and hydroxylamine aqueous solution as raw material through neutralization reaction.The morphology and structure of the composite were characterized by scanning electron microscope(SEM),Fourier transform infrared spectroscopy(FT-IR),nuclear magnetic resonance(NMR)and X-ray diffraction(XRD).The effect of different processing conditions on the morphology of the composite was studied.Thermal property was analyzed using DSC.Its impact and friction sensitivity were measured with GJB772A-1997 method.Its detonation velocity was calculated using Urizar's formula.Results show that the technological conditions for obtain-ing CL-20/HATO composite sample with uniform adhesion are:reaction temperature 90℃,reaction time 10 min and dropping rate 60 mL·min-1 of NH2OH aqueous solution.The crystal form of CL-20 in prepared CL-20/HATO composite sample does not change.The mass ratio of CL-20 and HATO in CL-20/HATO composite obtained by quantitative carbon spectroscopy is m(CL-20)∶m(HATO)=55∶45.The temperature of thermal decomposition of the complete is 238.3℃and 250.7℃.Its characteris-tic drop height is 44.7 cm,the probability of impact explosion is 52%and the probability of friction explosion is 76%.Theoreti-cal detonation velocity of the composite sample is 9516 m·s^-1.