Gradient Denitration Strategy Eliminates Phthalates Associated Potential Hazards During Gun Propellant Production and Application,Propellants, Explosives, Pyrotechnics

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Gradient Denitration Strategy Eliminates Phthalates Associated Potential Hazards During Gun Propellant Production and Application
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-03-25 , DOI: 10.1002/prep.202000006
Shiying Li _{1,

2} , Zhongan Tao _{1,

2} , Yajun Ding _{1,

2} , Hao Liang _{1,

2} , Xianzheng Zhao _{1,

2} , Zhongliang Xiao _{1,

2} , Chunzhi Li ₃ , Jiangyang Ou ₃

Affiliation

Phthalates, which often have to be used as deterrents during gun propellants production for realizing progressive burning, are widely believed to be harmful to human and the environment. Meanwhile, phthalates also generate much smoke during propellant combustion, thus, lowering firing accuracy and exposing positions, which may bring risk. To avoid phthalates usage during propellants production, this work, for the first time, reported the employment of “gradient denitration” strategy to prepare nitrocellulose‐based gun propellant without the addition of any phthalate deterrents. The successful preparation of gradiently denitrated gun propellant (GDGP) was supported by FT‐IR, Raman spectroscopy and FESEM equipped with energy‐dispersive X‐ray spectroscopy (EDS), as evidenced by the gradiently increased content of nitrogen and nitrate group from the surface to the core of GDGP. Such a denitration process, without any hazardous phthalates deterrents addition, could also realize the good progressive burning performance of the gun propellant, as confirmed by closed bomb test and ballistic gun test. Meanwhile, both theoretical calculation and weapon muzzle smoke test also demonstrated the lowering of smoke generation during propellant combustion. This phthalates‐free strategy paves a new way to eliminate potential hazards associated with phthalates during traditional gun propellant production and application.

中文翻译：

梯度脱硝策略消除了邻苯二甲酸盐在枪支推进剂生产和应用过程中的潜在危害

人们普遍认为，邻苯二甲酸盐通常在生产过程中必须用作威慑剂，以实现逐步燃烧，但对人类和环境都是有害的。同时，邻苯二甲酸盐在推进剂燃烧过程中也会产生大量烟气，从而降低了射击精度和暴露位置，可能带来危险。为了避免在推进剂生产过程中使用邻苯二甲酸盐，这项工作首次报告了采用“梯度脱硝”策略来制备硝化纤维素基枪支推进剂，而没有添加任何邻苯二甲酸盐威慑剂。FT-IR，拉曼光谱和配备能量色散X射线能谱（EDS）的FESEM支持了梯度脱硝火药推进剂（GDGP）的成功制备，从GDGP的表面到核心的氮和硝酸盐基团的含量逐渐增加可以证明这一点。这样的脱硝过程，不添加任何有害的邻苯二甲酸酯类威慑剂，也可以实现枪推进剂的良好渐进燃烧性能，这已通过密闭炸弹试验和弹道枪试验证实。同时，理论计算和武器枪口烟雾试验也证明了推进剂燃烧过程中烟雾的产生有所降低。这种不含邻苯二甲酸盐的策略为消除传统枪支推进剂生产和应用过程中与邻苯二甲酸盐相关的潜在危险铺平了新途径。经密闭炸弹测试和弹道枪测试确认。同时，理论计算和武器枪口烟雾试验也证明了推进剂燃烧过程中烟雾的产生有所降低。这种不含邻苯二甲酸盐的策略为消除传统枪支推进剂生产和应用过程中与邻苯二甲酸盐有关的潜在危险开辟了新途径。经密闭炸弹测试和弹道枪测试确认。同时，理论计算和武器枪口烟雾试验也证明了推进剂燃烧过程中烟雾的产生有所降低。这种不含邻苯二甲酸盐的策略为消除传统枪支推进剂生产和应用过程中与邻苯二甲酸盐相关的潜在危险铺平了新途径。

更新日期：2020-03-25

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