Preparation of Nano‐Spherical Cu‐en and Its Catalytic Study on the Performance of Solid Propellant,Propellants, Explosives, Pyrotechnics

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Preparation of Nano‐Spherical Cu‐en and Its Catalytic Study on the Performance of Solid Propellant
Propellants, Explosives, Pyrotechnics ( IF 1.7 ) Pub Date : 2020-09-20 , DOI: 10.1002/prep.202000147
Naimeng Song ₁ , Jianchao Liu ₂ , Li Yang ₂ , Pingan Liu ₁

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This paper mainly describes a nano‐spherical energetic catalyst Cu‐en. The result of particle size distribution shows that the D₅₀ value of Cu‐en is 80.18 nm. The thermal decomposition process of RDX, AP, and NC is improved obviously after mixed with Cu‐en. Among them, the change of AP is the most significant, and its peaks of high‐temperature decomposition and low‐temperature decomposition degenerate into one decomposition peak. The thermal decomposition temperature of NC also decreased from 214.5 °C to 191.6 °C. In the range of 3–9 MPa, Cu‐en can significantly increase the burning rate of HTPB propellant and reduce the pressure exponent n from 0.684 to 0.459. According to the test data results of the CMDB propellant, the nano‐spherical Cu‐en prepared by the spray drying method has a stronger catalytic ability than the micro‐nano Cu‐en prepared by the high‐energy ball milling method.

中文翻译：

纳米球形Cu的制备及其对固体推进剂性能的催化研究

本文主要描述了纳米球形高能催化剂Cu-en。粒度分布的结果表明，Cu-en的D ₅₀值为80.18 nm。与Cuen混合后，RDX，AP和NC的热分解过程得到明显改善。其中，AP的变化最为显着，其高温分解和低温分解的峰退化为一个分解峰。NC的热分解温度也从214.5°C降至191.6°C。在3–9 MPa的范围内，Cu-en可以显着提高HTPB推进剂的燃烧速率并降低压力指数n从0.684到0.459。根据CMDB推进剂的测试数据结果，喷雾干燥法制得的纳米球形Cu-en比高能球磨法制得的微纳米Cu-en具有更强的催化能力。

更新日期：2020-11-05

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