火炸药学报2024，Vol.47Issue(6)：513-520,8.DOI:10.14077/j.issn.1007-7812.202405002
微流控技术制备DNTF/LLM-105复合材料及其安全性能分析
Preparation of DNTF/LLM-105 Composites Using the Microfluidic Technology and It's Safety Performance Analysis
摘要
Abstract
In order to improve the safety performances of 3,4-dinitrofurazanfuroxan(DNTF),2,6-diamino-3,5-dinitropy-razine-1-oxide(LLM-105)was used to combine with it by using the microfluidic technology,DNTF/LLM-105 composites with different mass ratios of 50∶50,60∶40 and 70∶30 were prepared.Scanning electron microscopy(SEM)was used to char-acterize the morphology and structure of prepared DNTF/LLM-105 composites,and the thermal decomposition were tested by DSC method.The mechanical sensitivities of the composites were tested.The results show that DNTF/LLM-105 composites are all in the prism-shaped structure,and the particle size are significantly smaller than that of raw DNTF,the thermal decomposi-tion peak temperature of the composites are beyond 269.0,262.6,and 255.4 ℃,which is 21.2,27.6,34.8 ℃ lower than that of DNTF,respectively.The mechanical sensitivity test shows that the characteristic drop height of the prepared DNTF/LLM-105 composites increased by(50±2),(45±2)and(45±2)cm,respectively,compared with raw materials of DNTF,and the characteristic drop height increased by(15±2),(10±2)and(10±2)cm,respectively,compared with raw materials of LLM-105.The critical load of friction sensitivity of the DNTF/LLM-105 composites are all higher than 360N.The results indicate that the microfluidic technology can be used to prepare the composites with small particle size and better sensi-tivity than the corresponding energetic material monomers.关键词
物理化学/DNTF/LLM-105复合材料/微流控技术/热分析/机械感度/静电火花感度Key words
physical chemistry/DNTF/LLM-105 composite materials/microfluidic technology/thermal analysis/mechanical sensitivity/electrostatic spark sensitivity分类
军事科技引用本文复制引用
王宇利,张怡婧,李媛媛,刘博,南海,杨建武,马海霞..微流控技术制备DNTF/LLM-105复合材料及其安全性能分析[J].火炸药学报,2024,47(6):513-520,8.基金项目
陕西省创新团队建设项目(No.2022T-33) （No.2022T-33）
国防科技重点实验室基金(No.2022-JCJQ-LB-037) （No.2022-JCJQ-LB-037）
