摘要本文运用静电喷雾法制备硼复合粒子，探讨了制备条件，发现在电压18KV，喷嘴与铝箔距离10cm，喷液流速在3ml/min-1的情况下可以制得良好的硼复合粒子。为了探究在静电喷雾法制备下，不同含量硝化棉对硼复合粒子的微观形貌，热化学反应机理以及点火性能，本文运用扫描电镜（SEM），密闭爆发器测试和热重/差热（TG/DSC)测试进行分析，结果发现，加入硝化棉可以明显减少主反应的反应温度，3%硝化棉的硼复合粒子有最好的微球状的微观形貌，硝化棉不仅起粘合剂的作用，还参与反应，少量的硝化棉（3%-5%)可以减少点火时间，提高爆炸性能。综合考虑，3%硝化棉为最适加入量。51309

毕业论文关键词：硼复合粒子 静电喷雾法 硝化棉含量

Abstract

Title：     Preparation of boron composite nanoparticles by electrostatic spraying                              

Using electrostatic spray method preparation of boron composite particles, the influence of preparation conditions, found in the voltage of 18kV, nozzle and aluminum foil distance of 10 cm, spray flow rate in the 3ml/min-1 can be of good boron composite particles. In order to explore the preparation of electrostatic spray, different content of nitrate of cotton on the boron composite particles morphology, thermal and chemical reaction mechanism and the ignition performance. In this paper, the use of scanning electron microscopy (SEM), closed bomb test and thermogravimetric / differential thermal (TG) test are analyzed, the results found that adding nitrocellulose can significantly reduce the main reaction reaction temperature, 3% nitrocellulose boron complex Particle best microsphere morphology, nitrocellulose not only adhesive function, but also participates in the reaction, a small amount of nitrocellulose (3% - 5%) can reduce the ignition time, improving explosion performance. Considering that nitrocellulose 3% is the optimum adding amount.

Keywords: boron particles content of NC electrostatic spraying method

目录 1

摘要 2

Abstract 3

1.绪论 4

2. 硼复合粒子的制备和表征 7

2.1 实验 7

2.1.1 实验试剂与仪器 7

2.1.2 实验流程图 8

2.1.3 实验步骤 8

2.4 本章小结 13

3. 硼复合粒子热化学反应性能测试（热重分析和差热分析TG/DSC测试） 14

3.1 实验步骤 14

3.2 含硝化棉的硼复合粒子的热化学反应历程 14

3.3 不含硝化棉的硼复合粒子的热化学反应历程 15

3.4 不同含量硝化棉的硼复合粒子的热化学差异 16

本章小结 18

4. 硼复合粒子的点火性能测试（密闭爆发器实验 ） 19

4.1 实验步骤 19

4.2 实验结果与分析 21

4.3 本章小结 22

结论 23

致谢 24

参考文献 25

1.绪论

1.1 引言