Performance Study On Materials Of Film Type Decoy With Low Combustion Temperature

Based on the characteristic of high radiation intensity and high combustion temperature of formula Mg/PTFE, the ultrafine and flammable materials such as red phosphorus and copper oxide et al. were used as filling materials between interface of burning medium of Mg/PTFE, and ensuring infrared decoy materials of new formulation Mg/PTFE can produced a high intensity infrared radiation, and meanwhile can be burned steady with lower temperature after making into film type.The ignition temperature of primary formulas were determined by DTA test at first, and then the influences of each new additives added to formula Mg/PTFE were analyzed, and the final additive used in Mg/PTFE was locked as red phosphorus and copper oxide. To ensure the film type decoy materials has a certain elasticity and tensile strength, and without dispersion when explosion, celluloid was used as adhesive in new formulas with weight ratio of10%in all tests. In three kinds of formulas, the influence rules of combustion temperature and oxidants with different particle sizes were studied.Compared with the traditional decoy formula Mg/PTFE, a series of formulas with average combustion temperature lower than900℃in the new design were detected, and the performance of which were studied. The results indicated that the content of red phosphorus and copper oxide has a deep influence on the combustion temperature and radiation intensity of the new decoy formula Mg/PTFE. In redesigned formulas, the average combustion temperature was less than900℃when the content of between20%and30%, or red phosphorus was15%and copper oxide was10%. The combustion process of the thin film type decoy was the most steady, and the combustion time was over2.5s, the radiation intensity about2.0W/Sr.