含能材料2025，Vol.33Issue(12)：1395-1404,10.DOI:10.11943/CJEM2025215
典型抑制剂对含FeS2乳化炸药热分解过程的抑制机理
Inhibition Mechanism of Typical Inhibitors on the Thermal Decomposition Process of Emulsion Explosives Containing FeS2
摘要
Abstract
To investigate the inhibition mechanisms of typical inhibitors on the thermal decomposition process of emulsion explo-sives containing FeS2,the thermal decomposition behavior,gas products,solid products and thermal self-ignition behavior of emulsion explosives containing FeS2 with typical inhibitors(NH4H2PO4,CaCO3 and ZnO)were studied by using TG-DSC,TGA-FTIR,XRD and a thermal spontaneous combustion experimental platform.The results indicate that the inert species generat-ed during inhibitor decomposition effectively suppress the catalytic activity of FeS2 toward the thermal decomposition of emul-sion explosives,thereby reducing the reaction rate and increasing the apparent activation energy.The apparent activation energy of the emulsion explosive containing FeS2,calculated via the Kissinger method,was determined to be 99.03 kJ·mol-1.When NH4H2PO4 serves as the inhibitor,the emulsion explosive exhibits the highest apparent activation energy(130.38 kJ·mol-1).Further-more,all three inhibitors can effectively inhibit the formation of nitrogen oxides(NO2 and N2O)and react with Fe or S derived from FeS2 to form thermally stable inert compounds.The inhibitors can also markedly extend the ignition delay period and re-duce the combustion intensity,among which NH4H2PO4 shows the most pronounced flame suppression performance.关键词
抑制剂/二硫化铁(FeS2)/乳化炸药/热分解/热自燃/比色测温Key words
inhibitors/ferrous disulfide/emulsion explosive/thermal decomposition/thermal spontaneous combustion/colorimet-ric pyrometer分类
化学化工引用本文复制引用
许建伟,程扬帆,张启威,朱守军,佘骏原..典型抑制剂对含FeS2乳化炸药热分解过程的抑制机理[J].含能材料,2025,33(12):1395-1404,10.基金项目
国家自然科学基金面上项目(12572409,12272001)National Natural Science Foundation of China(Nos.12572409,12272001) （12572409,12272001）
