含能材料2026，Vol.34Issue(1)：92-99,8.DOI:10.11943/CJEM2025197
梯形硝化纤维素制备及其在双基发射药中的应用(Ⅰ):相容性、热分解及感度
Preparation of Ladder-Like Nitrocellulose and its Application in Double-base Gun Propellants(Ⅰ):Compatibility,Thermal Decomposition and Sensitivity
摘要
Abstract
To address the issues of insufficient mechanical properties and high sensitivity in high-energy gun propellants caused by the addition of large amounts of solid high-energy fillers,by using nitrocellulose as the raw material,isophorone diisocyanate as the coupling agent,and polyethylene glycol as the flexible segment,the ladder-like nitrocellulose(LNC)was prepared via a two-step grafting reaction.LNC was then used as an energetic binder to partially replace nitrocellulose,and a semi-solvent meth-od was adopted to prepare LNC-based double-base gun propellants.LNC formed a double-stranded molecular structure accord-ing to the designed reaction pathway.The compatibility,thermal decomposition and sensitivity of LNC-based double-base gun propellants were investigated.Results show that there is good compatibility between LNC and nitrocellulose.The LNC-based double-base gun propellants exhibit enhanced thermal stability with the initial decomposition temperature increased from 190.20℃to 200.89℃.The impact sensitivity is reduced with the characteristic drop height value increased from 15.4 cm to 28.2 cm.关键词
LNC(梯形硝化纤维素)/双基发射药/低敏感/接枝改性/相容性Key words
ladder-like nitrocellulose/double-base gun propellants/low sensitivity/graft modification/compatibility分类
军事科技引用本文复制引用
浦程凯,栾于,蒋梓洪,秦枭锋,肖正刚..梯形硝化纤维素制备及其在双基发射药中的应用(Ⅰ):相容性、热分解及感度[J].含能材料,2026,34(1):92-99,8.基金项目
国家自然科学基金(22475100)National Natural Science Foundation(No.22475100) （22475100）
