Study On The Preparation And Properties Of High Energy Incendiary Agent Based On Mg/PTFE

Thermites composite particles of Al/CuO, Al/NiO, Al/TiO2, Al/Fe2O3 were prepared by chemical precipitation method in this paper. The morphology and structural of composite particles were characterized by XRD, SEM. Different types and content of thermites which were achieved by chemical precipitation added to Mg/PTFE incendiary agent and made the particles were prepared to research combustion properties and heat radiation properties. Within the content, the combustion temperature gradually decreased with the increase of Al/CuO, Al/NiO content. The combustion temperature improved when the content is relatively low. The combustion temperature decreased when the content is relatively high. The combustion temperature gradually decreased and improved with the increase of Al/TiO2, Al/Fe2O3 content. Combustion is stable. The combustion time of Mg/PTFE incendiary agent decreased and combustion rate increased after adding the additives of Al/CuO, Al/TiO2, Al/Fe2O3. The low level of Al/NiO make combustion time decreased and combustion rate increased, however the combustion time no significant change with higher content. Al/CuO, Al/TiO2, Al/Fe2O3 can improved the heat radiation intensity at the band of 3-5μm,8-14μm, especially in 3-5μm band. Al/NiO can improve the heat radiation intensity at the band of 3-5μm,8-14μm,when the content is relatively low.Al/M1, Al/M2, Cu/M3, Al/M4, Al/M5 mixed metal combustible agent additives prepared by direct mixing. Different types and content of mixing metal combustible agent added to Mg/PTFE incendiary agent were prepared to research combustion properties and heat radiation properties. The combustion temperature increased, combustion time decreased and the combustion rate increased within the content. The weight of the slag increased and the agent harder to ignited with the increased of additive content. The heat radiation intensity increased at the band of 3-5μm,8-14μm,especially when content is relatively low. When content is relatively high the heat radiation intensity relatively reduced.Incendiary agent’s combustion process is complex, by analyzing to establish the heating layer theoretical model. We study and validate the model by experimentation, the results showed that conform to the heating layer theory. In the combustion process to establish the heating layer is crucial.