结构诱导的能量协调化合物作为激光启动初级爆炸物的添加剂
Meng Cui1,2,3, Yun-Fan Yan1, Rui-Xuan Qian1,2,3
1State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, P. R. China.
Advanced materials (Deerfield Beach, Fla.)
|December 9, 2024
概括
研究人员开发了新的能量协调化合物,以显著降低酸 (LA) 等初级爆炸物的激光启动能量. 这一突破使得使用最小的激光输入实现了强大的引爆,为先进的微型引爆器铺平了道路.
科学领域:
- 材料科学 材料科学 材料科学
- 能量材料 能量材料
- 化学工程是化学工程的重要组成部分.
背景情况:
- 传统的电动启动初级爆炸物的可靠性不如激光点火.
- 商业酸 (LA) 需要高激光能量 (2402mJ) 引爆.
- 现有的激光可点燃材料具有有限的引爆能力和高能耗要求.
研究的目的:
- 设计使用能量协调化合物 (ECC) 的新型激光可点燃初级爆炸物.
- 为了降低爆炸物的最小激光启动能量 (Emin).
- 开发酸 (LA) 的添加剂,以提高激光点火灵敏度.
主要方法:
- 合成了两种以亚化物和四醇为基础的ECC:[Co ((N3) ((2-bmttz) ((H2O) ]2 (1) 和[Co ((N3) ((2-bmttz) ((MeOH) ]2 (2).
- 将ECC 1作为添加剂添加到酸 (LA) 中,以创建1e材料 (4%重量).
- 评估了LA和材料1e的激光启动值 (Emin) 和时间 (Tmin).
- 在RDX上测试了1e的引爆能力,使用最小的激光能量.
主要成果:
- 材料1e显示了超低的激光启动值 (Emin = 1.6 mJ) 和超快的时间 (Tmin = 0.2 ms).
- 1e的Emin是纯LA所需的1500分之一.
- 30毫克的1e成功地使用仅1.6mJ的激光能量引爆了RDX.
- 由于激素生成和光热转换的增强,ECC 1 的性能优于ECC 2.
结论:
- 基于亚酸和醇的ECC,特别是化合物1,显著提高了初级爆炸物的激光点火灵敏度.
- 这项研究为开发具有高性能和低能耗的激光驱动微型引爆器提供了范式转变.
- 这些发现在微启动系统中具有潜在的应用,这些系统需要精确的低能激光触发.
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