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One-step green method to prepare progressive burning gun propellant through gradient denitration strategy

Defence Technology（防务技术） 2023年第4期22卷 135-143页

作者： Shi-ying Li Yu Li Ya-jun Ding Hao Liang Zhong-liang Xiao School of Chemical Engineering Nanjing University of Science and TechnologyNanjing210094China Key Laboratory of Special Energy Materials(Nanjing University of Science and Technology) Ministry of EducationNanjing210094China

gradiently denitrated gun propellant(GDGP)prepared by a“gradient denitration”strategy is obviously superior in progressive burning performance to the traditional deterred gun ***,the preparation of GDGP employed a tedious two-step method involving organic solvents,which hinders the large-scale preparation of *** this paper,GDGP was successfully prepared via a novelty and environmentally friendly one-step *** obtained samples were characterized by FT-IR,Raman,SEM and *** results showed that the content of nitrate groups gradiently increased from the surface to the core in the surface layer of GDGP and the surface layer of GDGP exhibited a higher compaction than that of raw gun propellant,with a well-preserved nitrocellulose *** denitration process enabled the propellant surface with regressive energy density and good progressive burning performance,as confirmed by oxygen bomb and closed bomb *** the same time,the effects of different solvents on the component loss of propellant were *** result showed that water caused the least component ***,the stability of GDGP was confirmed by methyl-violet *** work not only provided environmentally friendly,simple and economic preparation of GDGP,but also confirmed the stability of GDGP prepared by this method.

关键词： gradiently denitrated gun propellant One-step green method Denitration Progressive burning Stability

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