2024年6月常州大学低碳清洁能源与安全高效燃烧科研团队孙运兰教授课题组2023级硕士研究生伍双艳同学在《火炸药学报》期刊发表了题为“ LiF/GAP协同作用改善硼粉的燃烧性能”的研究论文。

论文以氟化锂/缩水甘油叠氮化物聚合物(LiF/GAP)为界面层对微米硼进行改性,研究LiF/GAP协同作用对硼粉热行为、燃烧性能和凝聚相燃烧产物的影响。结果表明,通过硅烷偶联剂处理后,硼粉表面黏结性得以提高,LiF能够较好地包覆在硼粉表面; GAP在400℃之前抑制了LiF与硼表面氧化膜的反应,使LiF的除膜效应延后至硼粉氧化增重阶段,从而将更多的活性硼暴露在空气中发生氧化,促进了硼粉的燃烧; LiF和GAP协同作用显著改善了硼粉的燃烧性能,尤其当LiF和GAP质量分数均为10%时,作用效果最为明显。此外,LiF和GAP协同作用有效抑制了燃烧过程中硼粉团聚,使其凝聚相燃烧产物粒径降低。

      该论文第一作者伍双艳是常州大学2023级硕士研究生，常州大学是第一作者和通讯作者单位！

英文摘要：

  Boron (B) powder has a high volumetric heat value and mass heat value, and has good application prospects in rich fuel solid propellants. However, it suffers from poor ignition performance and low combustion efficiency, which affects the release of energy. In this study, lithium fluoride/glycidyl azide polymer (LiF/GAP) was used as an interface layer to modify micron-sized B particles, and the influence of LiF/GAP synergy on the thermal behavior, combustion performance, and condensed phase combustion products of B powder was investigated. The results show that after treatment with silane coupling agent, the surface viscosity of B powder is improved, and LiF can be well coated on the surface of B particles. GAP inhibits the reaction between LiF and the oxide film on the surface of B particles, reducing its debonding effect before 400℃. This delays the debonding effect of LiF to the stage where B particles oxidize and increase in weight when exposed to air, thereby promoting the combustion of active B particles. The synergistic effect of LiF and GAP significantly improves the combustion performance of B powder, especially when their contents are 10% each. Furthermore; synergistic action between LiF and GAP effectively suppresses agglomeration of B powder during combustion process, resulting in reduced particle size for condensed phase combustion products.

原文链接：https://doi/10.14077/j.issn.1007-7812.202311002

撰稿：2023级硕士研究生伍双艳  审核：朱宝忠