This study developed a novel emulsion explosive containing sodium borohydride(NaBH 4).The effects of NaBH 4 content on the performance of the emulsion explosive were investigated using methods such as brisance,density...This study developed a novel emulsion explosive containing sodium borohydride(NaBH 4).The effects of NaBH 4 content on the performance of the emulsion explosive were investigated using methods such as brisance,density measurements,and theoretical calculations.Additionally,the thermal decomposition characteristics of the emulsion explosive samples were examined through thermogravimetric analysis.Results indicated that as the NaBH 4 content increased,the density of the explosive initially increased and then decreased,while the heat of explosion continuously increased.The brisance of the emulsion explosives is stable under different temperature conditions ranging from 20℃to 30℃.At 25℃,the brisance initially increased and then decreased,reaching a maximum value of 22.4 mm at a NaBH 4 content of 5%,which represents a 50.33%improvement compared to ordinary emulsion explosives.The TG curves of all samples exhibited consistent trends.Under the same heating rate,the initial decomposition temperature of the emulsion explosive increased with the addition of NaBH 4.展开更多
基金supported by the Foundation of Anhui Engineering Research Center of New Explosive Materials and Blasting Technology of Anhui University of Science and Technology(AHBP2023B-03).
文摘This study developed a novel emulsion explosive containing sodium borohydride(NaBH 4).The effects of NaBH 4 content on the performance of the emulsion explosive were investigated using methods such as brisance,density measurements,and theoretical calculations.Additionally,the thermal decomposition characteristics of the emulsion explosive samples were examined through thermogravimetric analysis.Results indicated that as the NaBH 4 content increased,the density of the explosive initially increased and then decreased,while the heat of explosion continuously increased.The brisance of the emulsion explosives is stable under different temperature conditions ranging from 20℃to 30℃.At 25℃,the brisance initially increased and then decreased,reaching a maximum value of 22.4 mm at a NaBH 4 content of 5%,which represents a 50.33%improvement compared to ordinary emulsion explosives.The TG curves of all samples exhibited consistent trends.Under the same heating rate,the initial decomposition temperature of the emulsion explosive increased with the addition of NaBH 4.
