Efficient sensitivity ofreducing and hygroscopicity preventing of ultra-fine ammonium perchlorate forhigh burning-rate propellants,
Efficient sensitivity ofreducing and hygroscopicity preventing of ultra-fine ammonium perchlorate forhigh burning-rate propellants,
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高燃速推进剂用超细高氯酸铵的高效减敏防吸湿
DOI：
10.1002/prep.201600237
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发表时间：
2017
期刊：
影响因子：
--
通讯作者：
Fude Nie
中科院分区：
文献类型：
--
作者：
Zhijian Yang;Feiyan Gong;Ling Ding;Yubin Li;Guangcheng Yang;Fude Nie
在这项研究中，选择了几种惰性材料，包括一些功能性碳材料、石蜡和著名的不敏感含能材料1,3,5-三氨基-2,4,6-三硝基苯（TATB），通过聚合物改性涂层来降低超细高氯酸铵（UF-AP）不良的高灵敏度和吸湿性。通过扫描电子显微镜、灵敏度测试、热实验、接触角和吸湿性分析，系统研究了UF-AP基复合材料的结构、灵敏度、热性能和吸湿性能。结果表明，仅用少量的2%（质量）脱敏剂即可分别显着降低UF-AP的冲击敏感性和摩擦敏感性。同时，热分解性能得到改善，吸湿性也能大幅度降低。对质量含量为10 %包覆UF-AP的推进剂进行加工和测试，燃烧速率达到45.7 mm s−1，比普通AP提高50 %，冲击灵敏度从11.5 J显着降低到29.6 J，摩擦灵敏度从76 %显着降低到28 %。
In this research, several inert materials, including some functional carbon materials, paraffin wax and the well‐known insensitive energetic material 1,3,5‐triamino‐2,4,6‐trinitrobenzene (TATB) were selected to reduce the undesirable high sensitivity and hygroscopicity of ultra‐fine ammonium perchlorate (UF‐AP) via polymer modified coating. Structure, sensitivity, thermal and hygroscopicity performances of the UF‐AP based composites were systematically studied by scanning electron microscopy, sensitivity tests, thermal experiments, contact angle, and hygroscopicity analysis. The results showed that both the impact and friction sensitivity of UF‐AP can be remarkably reduced, respectively, with only a small amount of 2 % (in mass) desensitization agents. Meanwhile, improved thermal decomposition was gained, and the hygroscopicity can also be reduced to a large extent. Propellants containing 10 % coated UF‐AP in mass were processed and tested, the burning rate reached 45.7 mm s−1, 50 % higher compared with that of normal AP, with remarkably reduced impact sensitivity from 11.5 J to 29.6 J and friction sensitivity from 76 % to 28 %.