Page 183 - 《爆炸与冲击》2026年第9期

第 46 卷 第 9 期 爆 炸 与 冲 击 Vol. 46, No. 9
2026 年 9 月 EXPLOSION AND SHOCK WAVES Sept., 2026

DOI：10.11883/bzycj-2025-0294

不同双金属超分子化合物抑制镁粉

爆燃火焰的实验研究 *

王慧婷，韩志跃，余子明

（北京理工大学爆炸科学与安全防护全国重点实验室，北京 100081）

摘要： 镁粉在生产过程中存在极大的爆炸风险，亟需开发高效靶向抑爆剂。通过共沉淀法成功合成不同类型的
双金属超分子化合物抑爆剂，并利用哈特曼管研究了其对镁粉爆炸的抑制效果。研究发现，双金属超分子化合物材料
的抑爆效果优于传统抑爆剂碳酸氢钠，且当金属阳离子一致时，碳酸根离子的抑爆效果优于氯离子。抑爆效果由强到
弱的排序分别为钙铁碳酸根材料、铜铝碳酸根材料、镁铝碳酸根材料、钙铁氯离子材料、锌铬碳酸根材料以及镁铝氯
离子材料。明确了抑爆机理为吸热分解、物理包裹、惰性气体稀释及金属阳离子/层间阴离子协同清除关键自由基，从
而实现物理-化学的双重抑爆。
关键词： 双金属超分子化合物；镁粉爆炸；火焰传播；爆炸抑制
中图分类号： O383; X932 国标学科代码： 13035 文献标志码： A

Experimental study on suppression of magnesium powder deflagration flame
with different bimetallic supramolecular compounds

WANG Huiting, HAN Zhiyue, YU Ziming
（State Key Laboratory of Explosion Science and Safety Protection, Beijing Institute of Technology, Beijing 100081, China）

Abstract: Magnesium powder, a commonly utilized metallic material, frequently gives rise to combustion and explosion
incidents during its production. To identify efficient suppressants for magnesium dust explosions, six bimetallic supramolecular
compounds were synthesized via co-precipitation, and their flame-suppression performance on magnesium dust flames was
compared by means of flame morphology and flame-propagation velocity in a Hartmann tube; sodium bicarbonate, a
traditional suppressant, served as the reference. In the tests, magnesium powder was premixed with each of the seven
suppressants at a mass ratio of 1∶6 and then ignited in the Hartmann tube. The average flame-propagation velocity was
derived from the tube length and the time required for the flame to reach the tube top, whereas the instantaneous flame-
propagation velocity was obtained by recording flame height at successive instants. A higher average velocity and a faster
flame-front propagation velocity signify a weaker suppressant efficacy. When the seven suppressants were ranked according to
these two indicators, however, the orders were not fully consistent. For instance, MgAl-Cl yielded a lower average velocity
than NaHCO , yet its maximum flame-propagation velocity exhibited the opposite trend. This discrepancy arises because
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certain suppressants only weakly inhibit the magnesium flame, allowing rapid flame acceleration near the tube outlet where
oxygen is abundant. Integrating both the average and the maximum flame-propagation velocities, the suppressants can be
arranged from the least to the most effective as follows: NaHCO , MgAl-Cl, ZnCr-CO , CaFe-Cl, MgAl-CO , CuAl-CO ,
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CaFe-CO . Moreover, the percentage reductions in average velocity imparted by the four bimetallic supramolecular compounds
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* 收稿日期： 2025-09-09；修回日期： 2025-10-11
基金项目： 国家重点研发计划（2023YFC3010604）
第一作者： 王慧婷（2003－ ），女，硕士研究生，1418246822@qq.com
通信作者： 韩志跃（1984－ ），男，博士，副教授，hanzhiyue@bit.edu.cn

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