含能材料2025，Vol.33Issue(2)：127-135,9.DOI:10.11943/CJEM2024222
胺基化合物改性球形ADN的制备及性能
Preparation and Properties of Modified Spherical ADN with Amine Compounds
摘要
Abstract
Ammonium dinitramide(ADN),as a high-energy green oxidizer,faces significant challenges in engineering applica-tions within solid propellants due to its high surface polarity and strong hygroscopicity.To improve the hygroscopicity of ADN,both emulsion and liquid-phase methods were employed to graft hydrophobic amine compounds,oleylamine and 4-fluoroben-zylamine,onto the surface of spherical ADN(PADN),thereby preparing the modified spherical ADN(PMADN).The structure and properties of the modified ADN were characterized using scanning electron microscopy-energy dispersive spectroscopy(SEM-EDS),thermogravimetric-differential thermal analysis(TG-DTA),and X-ray photoelectron spectroscopy(XPS).Addition-ally,hygroscopicity studies were conducted using the desiccator equilibrium method.The results confirmed both amine com-pounds were grafted successfully and the spherical morphology of the modified ADN was intact.The thermal decomposition tem-perature of the modified ADN increased from 196.3℃(raw ADN)to 198.3℃and 200.7℃,and the impact sensitivity im-proved from 17.95 J to 24.35 J and 28.80 J(average value),respectively.After 144 h under 25℃and 57%relative humidity,the moisture rates of the two modified spherical ADN were 1.37%and 1.07%,decreasing 74.95%and 80.44%compared to that of the raw ADN.Additionally,no caking or liquid water was observed on the surface,indicating the modified ADN had excel-lent anti-hygroscopic properties.关键词
二硝酰胺铵/固体推进剂/胺基化合物改性/氧化剂/吸湿性Key words
ammonium dinitramide(ADN)/solid propellants/amine compounds modification/oxidizer/hygroscopicity分类
军事科技引用本文复制引用
屈炜宸,晏嘉伟,夏文韬,李磊,杜芳,吴鹏,林昱辉,何健明,陶博文..胺基化合物改性球形ADN的制备及性能[J].含能材料,2025,33(2):127-135,9.基金项目
国家自然科学基金(22175059) Grant support:National Natural Science Foundation of China(No.22175059) （22175059）
