CAJ | 학술논문

采用激光粒度仪跟踪粒度分布，用扫描电子显微镜（ SEM ）和透射电子显微镜（ TEM ）观察颗粒大小和形貌；通过热重（ TG）和差示扫描量热法（ DSC）分析了使用HLGB-10型粉碎机批量制备纳米黑索今（ RDX）的热分解特性，并测定了5 s爆发点和感度。研究结果表明，制备的纳米RDX粒度分布窄；与原料RDX相比，活化能和5 s爆发点稍有降低，热安定性基本不变，静电感度与火焰感度与原料RDX相当；摩擦、撞击和冲击波感度分别比原料RDX降低了37．5％、92．8％和51．0％。
채용격광립도의근종립도분포，용소묘전자현미경（ SEM ）화투사전자현미경（ TEM ）관찰과립대소화형모；통과열중（ TG）화차시소묘량열법（ DSC）분석료사용HLGB-10형분쇄궤비량제비납미흑색금（ RDX）적열분해특성，병측정료5 s폭발점화감도。연구결과표명，제비적납미RDX립도분포착；여원료RDX상비，활화능화5 s폭발점초유강저，열안정성기본불변，정전감도여화염감도여원료RDX상당；마찰、당격화충격파감도분별비원료RDX강저료37．5％、92．8％화51．0％。
The particle size distribution of nano-RDX was traced by the laser particle size analyzer .At the same time, the particle size and the morphology of nano-RDX were characterized through the SEM and the TEM .The thermal decomposition of nano-RDX which was prepared in batches by the pulverized machine HLGB-10 was examined by the TG/DSC simultaneous thermal analyzer .Furthermore, the explosion temperature in five seconds and the sensitivities were meas-ured.Results show that the nano-RDX gets a narrow particle size distribution .Compared with the coarse counterpart , the activation energy and the explosion temperature in five seconds decrease slightly , and the thermal stability remains unchanged .The electrostatic sensitivity and the flame sensitivity of nano-RDX are the same as that of the coarse counterpart.while friction, impact and shock wave sensitivity of nano-RDX respectively decrease by 37.5%, 92.8%and 51 .0%.