HMX基O/W型悬浮油墨的喷墨打印成型及性能  

Inkjet Printing Molding and Properties of HMX⁃based O/W Type Suspension Ink

作　　者：闫晓虹 徐传豪 李千兵 牛康 高磊 安崇伟 王晶禹 YAN Xiao-hong;XU Chuan-hao;LI Qian-bing;NIU Kang;GAO Lei;AN Chong-wei;WANG Jing-yu(School of Environmental and Safety Engineering,North University of China,Taiyuan 030051,China;Jiangxi Xinyu Guoke Technology Co.,Ltd.,Xinyu 338018,China)

机构地区：[1]中北大学环境与安全工程学院,山西太原030051 [2]江西新余国科科技股份有限公司,江西新余338018

出　　处：《含能材料》2024年第5期492-500,共9页Chinese Journal of Energetic Materials

基　　金：国家自然科学基金(22275170,22105184)。

摘　　要：为探究乳液型炸药油墨与喷墨打印工艺结合的可行性,设计了以氟碳树脂(FEVE)的乙酸乙酯溶液为油相,聚乙烯醇(PVA)水溶液为水相的水包油(O/W)型双组分黏结剂体系,并选用微纳米HMX为主体炸药,制备O/W悬浮型炸药油墨进行了喷墨打印。采用电子密度测试仪、激光共聚焦显微镜、扫描电子显微镜(SEM)、X射线衍射仪(XRD)、纳米压痕仪、同步热分析TG-DSC、撞击和摩擦感度测试仪对喷墨打印成型样品的密度、形貌、力学性能、热安全性能、撞击感度和摩擦感度进行了表征,对喷墨打印成型样品的爆速和临界尺寸进行了测试。结果表明:喷墨打印成型样品表面较平整,线平均粗糙度为7.346µm,且内部颗粒分布紧实,内部的HMX未转晶,热稳定性及力学性能较好。样品的实测密度为1.5326 g·cm^(-1)(83%TMD);样品的撞击能为7 J,摩擦荷重为144 N,截面尺寸1 mm×1mm打印样品的爆速为7076 m·s^(-1)和临界尺寸为1 mm×0.087 mm,具有优异的安全性能和微尺度爆轰性能。In order to explore the feasibility of combining emulsion explosive ink and inkjet printing process,an oil-in-water(O/W)two-component binder system was designed through ethyl acetate solution of fluorocarbon resin(FEVE)as oil phase and polyvinyl alcohol(PVA)aqueous solution as water phase.The micro-nano HMX was selected as the main explosive to prepare O/W suspension explosive ink for the inkjet printing.Furthermore,the density,morphology,mechanical properties,thermal safety performance,impact sensitivity and friction sensitivity of the printed samples were characterized by electron density tes-ter,laser confocal microscope,scanning electron microscope(SEM),X-ray diffractometer(XRD),nanoindentation instrument,simultaneous thermal analysis TG-DSC,impact and friction sensitivity tester.The detonation velocity and critical size of the print-ed samples were tested.The results show that the surface of the inkjet printed sample is relatively flat,the average line roughness is 7.346μm,and the internal particle distribution is compact.The crystal type of HMX particles would not change during printed process,and the printed samples display good the thermal stability and the mechanical properties.The measured density of the sample is 1.5326 g·cm^(-1)(83%theoretical maximum density).The impact energy and the friction load of the printed sample are 7 J and 144 N,respectively.The detonation velocity of the printed sample with size of 1 mm×1 mm is 7076 m·s^(-1)and the criti-cal size is 1 mm×0.087 mm.Therefore,the samples prepared through inkjet printing of HMX based emulsion explosive ink have excellent safety performance and micro-scale detonation performance.

关 键 词：水包油型黏结剂体系 炸药油墨 微纳米HMX 喷墨打印 微尺度爆轰 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术]