Magnesium hydride (MgH₂) was doped into PTFE/Al to improve the energy release characteristics of the material system and strive for better application in military engineering. Five types of PTFE/Al/MgH₂ reactive materials with different MgH₂ content were prepared by molding sintering method. The dynamic mechanical properties of the materials were studied by performing split-Hopkinson pressure bar (SHPB) tests and scanning electron microscope characterizations. The thermal behavior, reaction energy, reaction process and reaction mechanism were systematically investigated by conducting thermogravimetry-differential scanning calorimetry tests, oxygen bomb calorimeter measurements, X-ray diffraction and SHPB tests. The results show that MgH₂ particles less than 10% content contribute to heightening the dynamic mechanical properties of PTFE/Al system. The product Mg generated by decomposition of MgH₂ can not only react with gas phase C₂F₄⁺ but also undergo a Grignard-type reaction with condensed PTFE. The reaction energy and ignition threshold of PTFE/Al/MgH₂ reactive materials enhance monotonously as MgH₂ content rose. With the increase of MgH₂ content from 0% to 20%, the reaction time is prolonged as well as the reaction intensity is enhanced dramatically arising from the massive water vapour produced by the reaction between O₂ and H₂. The gaseous products generated can form a high pressure shortly after the reaction, which helps to elevate the damage effect of the PTFE/Al system.

将氢化镁（MgH ₂）掺杂到PTFE/Al中，以改善材料体系的能量释放特性，争取在军事工程中得到更好的应用。采用模压烧结法制备了五种不同MgH _{2含量的PTFE/Al/MgH 2}反应材料。通过进行分裂霍普金森压力棒（SHPB）测试和扫描电子显微镜表征研究了材料的动态力学性能。通过热重-差示扫描量热测试、氧弹量热仪测量、X射线衍射和SHPB测试，系统地研究了热行为、反应能、反应过程和反应机理。结果表明，MgH ₂小于 10% 的颗粒有助于提高 PTFE/Al 系统的动态机械性能。_{MgH 2}分解生成的产物Mg不仅可以与气相C ₂ F ₄ ⁺反应，还可以与缩合的PTFE发生格氏反应。_{PTFE/Al/MgH 2}反应材料的反应能和着火阈值随着MgH ₂含量的增加而单调增加。随着MgH _{2含量从0%增加到20%，由于O 2}和H ₂反应产生大量水蒸气，反应时间延长，反应强度显着增强. 生成的气态产物在反应后不久会形成高压，这有助于提高 PTFE/Al 体系的破坏效果。