火工品INITIATORS&PYROTECHNICS文章编号：1003-1480（2023）01-0058-05NC/F2602/RDX复合微球悬浮组装成型及其性能研究朱玉宇，霍宏彪，王杰超，刘淳睿，都吉航，安崇伟（中北大学环境与安全工程学院，山西太原，030051）摘要：为了提升RDX基PBX造型粉的包覆效果和质量一致性，采用膜乳化技术制备出乳滴直径均一的水包油型粘结剂（NC/F2602）乳液，将超细RDX颗粒悬浮于乳液体系中，通过驱除乳滴中的溶剂，实现NC/F2602/RDX含能微球的悬浮组装成型。对样品形貌、粒度分布、晶型和热分解性能进行表征，并对不同样品的撞击感度进行测试。结果表明：NC/F2602/RDX复合物呈球状，包覆致密且粒度分布较窄，晶型未发生改变。相比超细RDX，NC/F2602/RDX复合微球的表观活化能由162.25kJ·mol-1升至165.98kJ·mol-1，热爆炸临界温度仅降低了0.01℃；复合微球的撞击安全性显著改善，特性落高H50由47.3cm升至62.5cm。关键词：黑索今；膜乳化；复合微球；悬浮组装；撞击感度中图分类号：TJ55；TQ564文献标识码：ADOI：10.3969/j.issn.1003-1480.2023.01.012TheSuspensionAssemblyandPropertiesofNC/F2602/RDXCompositeMicrospheresZHUYu-yu，HUOHong-biao，WANGJie-chao，LIUChun-rui，DUJi-hang，ANChong-wei(SchoolofEnvironmentalandSafetyEngineering,NorthUniversityofChina,Taiyuan,030051)Abstract：InordertoimprovethecoatingeffectandqualityconsistencyofRDX-basedPBXmoldingpowder,anoil-in-wateremulsionwithuniformdropletdiameterdissolvedwithbinder(NC/F2602)waspreparedbymembraneemulsificationtechnology,andthenultrafineRDXparticlesweresuspendedintheemulsionsystem.Byexpellingthesolventinthedroplets,thesuspensionassemblymoldingofNC/F2602/RDXenergeticmicrosphereswasrealized.Themorphology,particlesizedistribution,crystalformandthermaldecompositionpropertiesofRDXsampleswerecharacterized,furthermore,theimpactsensitivityofdifferentsampleswasalsotested.TheresultsshowthattheNC/F2602/RDXcompositeisspherical,withcompactcoatingandnarrowparticlesizedistribution,andthecrystalformremainsunchanged.ComparedwithultrafineRDX,theapparentactivationenergyofthethermaldecompositionofNC/F2602/RDXcompositemicrospheresisincreasedfrom162.25kJ·mol-1to165.98kJ·mol-1,thecriticaltemperatureofthermalexplosi...
