5-氨基四唑/高碘酸钠体系气体发生剂特性

doi:10.12382/bgxb.2021.0198

摘要/Abstract

摘要： 为获得低燃温气体发生剂，利用喷雾干燥法制备5-氨基四唑(5-AT)/NaIO₄/CuO复合粒子作为气体发生剂配方。通过扫描电子显微镜对5-AT/NaIO₄/CuO复合粒子的复合效果进行表征，用同步热分析仪、氧弹量热仪、热电偶和靶线法分别对5-AT/NaIO₄/CuO复合粒子的放热量、温度和燃速进行测试。结果表明：由喷雾干燥法制备的样品为2~4 μm微球且混合均匀；纳米CuO的加入使得燃烧热平均降低约300 J/g，燃温平均降低约100 ℃，最低为1 013 ℃；该气体发生剂的最大燃速为3.94 mm/s，最小为0.76 mm/s，配方残渣率平均降至约6.7%；该配方具有燃烧温度低、固体残渣含量低的特点。

关键词: 气体发生剂, 低燃温, 5-氨基四唑, 高碘酸钠, 喷雾干燥

Abstract: 5-AT/NaIO₄/CuO composite particles are prepared to obtain low-temperature gas-generating agents by spray drying method. The size and morphology of 5-AT/NaIO₄/CuO particles are characterized by scanning electron microscope. The combustion performances of gas-generating agents were tested using TG-DSC，automatic oxygen bomb calorimeter，thermocouple and target line method. The results show that 5-AT/NaIO₄/CuO composite particles are characterized as 2~4 μm microspheres and well-distributed. The addition of nano CuO reduces average combustion heat by 300 J/g and combustion temperature by 100 ℃.The minimum combustion temperature is 1 013 ℃,and the maximum and minimum burning rates are 3.94 mm/s and 0.76 mm/s respectively. The supplement of nano CuO effectively reduces the burning residuals with the residue rate of about 6.7%. The formula is characterized as low combustion temperature and little residuals.

Key words: gas-generatingagent, low-temperature, 5-aminotrazole, sodiumperiodate, spraydrying

中图分类号:

TJ55

袁建文，祁轩，董成，易镇鑫，张琳，朱顺官. 5-氨基四唑/高碘酸钠体系气体发生剂特性[J]. 兵工学报, 2022, 43(4): 788-795.

YUAN Jianwen， QI Xuan， DONG Cheng， YI Zhenxin， ZHANG Lin， ZHU Shunguan. Characteristics of 5-aminotrazole/sodium Periodate Low-temperature Gas-generating Agents[J]. Acta Armamentarii, 2022, 43(4): 788-795.

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