TiH2对乳化炸药性能的影响研究

为获得高威力且热稳定性良好的乳化炸药，研制了一种含有TiH₂的乳化炸药，并对该乳化炸药的性能进行测定。爆速、爆热和猛度实验研究发现，加入TiH₂会使乳化炸药爆速微降，同时提升其爆热和猛度。当乳化炸药中TiH₂质量分数为2%、4%时，爆热分别增加了4.21%、5.66%；猛度分别增加了15.29%、17.20%。TG-DTG实验研究发现，加入TiH₂不会影响乳胶基质的热分解过程，但会降低其表观活化能。当乳化炸药中TiH2的质量分数为2%、4%时，乳化基质的表观活化能分别降低了21.04%、12.61%。TiH₂能够在不影响乳化基质热分解过程的同时，提高乳化炸药威力。

Effect of TiH2 on Performances of the Emulsion Explosive

In order to obtain the emulsion explosive with high power and good thermal stability, an emulsion explosive containing TiH₂ was developed, and its properties were measured. Through the experimental study on detonation velocity, detonation heat and brisance, it is found that the addition of TiH₂ will slightly reduce the detonation velocity of emulsion explosive while improving its detonation heat and brisance. When the mass fraction of TiH₂ in the emulsion explosive is 2% and 4%, the detonation heat increases by 4.21% and 5.66%, and the brisance increases by 15.29% and 17.20%, respectively. TG-DTG experiment shows that the addition of TiH₂ will not affect the thermal decomposition process of the emulsion matrix, but will reduce its apparent activation energy. When the mass fraction of TiH₂ in the emulsion explosive is 2 % and 4 %, the apparent activation energy of the emulsion matrix decreases by 21.04% and 12.61%, respectively. The addition of TiH₂ can improve the power of emulsion explosive without affecting the thermal decomposition process.