含能材料2025，Vol.33Issue(11)：1313-1325,13.DOI:10.11943/CJEM2025103
苝酰亚胺复合六硝基茋的光热与安全性能
Photothermal and Safety Performance of Perylene Diimide/Hexanitrostilbene Composite
摘要
Abstract
To enhance the photothermal response of hexanitrostilbene(HNS)under laser initiation,a core-shell composite(HNS@PDI)was prepared by a combining strategy of molecular structure regulation and self-assembly surface deposition meth-od,and the influence of the molecular structure of PDI on its photothermal conversion efficiency and the laser ignition perfor-mance of HNS@PDI were systematically studied.The perylene imide(PDI-C12)modified with a dodecyl chain can easily assem-ble into a J-stacking structure that is conducive to non-radiative exciton transitions.Under 1064 nm laser irradiation,the compos-ite modified with PDI-C12 exhibits a photothermal conversion efficiency of 69.3%,which is 110%higher than that of the short-chain analog PDI-C2(32.9%).When the PDI loading was optimized to 5%,the laser ignition delay time was reduced to 22 ms at a laser power of 10 W and energy density of 80 W·cm-2.The PDI shell also significantly improves the safety perfor-mance of this composite.The critical impact energy of the composite increases from 5 J to 30 J,and the critical friction force is above 360 N.In addition,the PDI layer effectively inhibits photodecomposition.This study effectively improved the laser igni-tion performance of HNS,while enhanced the safety and photostability,providing new ideas for the development of high-performance laser ignition agents and photosensitizers.关键词
激光点火/六硝基茋(HNS)/苝酰亚胺(PDI)/光热转换/表面沉积/机械感度Key words
laser ignition/hexanitrostilbene(HNS)/perylene diimide(PDI)/photo-thermal conversion/self-assembly deposition/mechanical sensitivity分类
武器工业引用本文复制引用
成卓,刘德芳,王骏,文驰宇,李小东,朱国翔..苝酰亚胺复合六硝基茋的光热与安全性能[J].含能材料,2025,33(11):1313-1325,13.基金项目
国家自然科学基金(22306178) National Natural Science Foundation of China(No.22306178) （22306178）
