通过静电喷雾方法制备的RDX/Al/NC复合爆炸物的ANSYS模拟和实验分析
Wei Ji1, Yilong Duan1, Jun Dong2,3
1School of National Defense Science and Technology, Southwest University of Science and Technology Mianyang 621010 China 17745441207@163.com.
RSC advances
|March 26, 2025
概括
将 (Al) 添加到1,3,5-三甲基三胺 (RDX) 和纤维素 (NC) 复合爆炸物中可以提高性能. 这项研究表明,RDX/Al/NC复合材料的激活能量降低,热稳定性提高,燃烧性能提高.
科学领域:
- 材料科学 材料科学 材料科学
- 能量材料 能量材料
- 计算化学计算化学
背景情况:
- 1,3,5-三甲基三胺 (RDX) 是一种关键的能量材料.
- 研究将 (Al) 纳入用于增强基于RDX的爆炸物.
- 纤维素 (NC) 作为复合炸药中的粘合剂.
研究的目的:
- 研究含量对RDX/Al/NC复合爆炸物的性能的影响.
- 模拟和实验验证RDX/Al/NC复合材料的粒子特性.
- 为了评估热性质,燃烧和灵敏度的变化.
主要方法:
- 用于制备RDX/Al/NC复合材料的静电喷涂方法.
- ANSYS软件模拟颗粒大小分布和速度配置.
- 实验性表征包括形态,结构,热分析 (DSC),燃烧行为和冲击灵敏性测试.
主要成果:
- 模拟和实验颗粒大小显示出与增加Al含量的一致趋势.
- 在复合结构中观察到RDX,Al和NC的物理重组.
- 随着含量增加,激活能量显著下降 (4567 kJ/mol).
- 热爆炸的临界温度随着Al的添加而增加 (39K).
- 冲击灵敏度下降,燃烧性能得到改善.
结论:
- 加入可以提高RDX/Al/NC复合爆炸物的性能.
- 该研究验证了模拟数据与实验发现的粒子特性.
- 与纯RDX相比,RDX/Al/NC复合材料提供了更好的安全性和燃烧性能.
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