两种反应型叠氮硝胺发射药表面钝感剂的性能改进

Property Improvement on Two Reactive Surface Deterrents of Azidonitramine Gun Propellant

为改进叠氮硝胺发射药表面钝感剂的性能,以3-丁炔-1-醇和2-甲基-3-丁炔-2-醇为原料设计合成了钝感剂前驱体2,4,6-三(3-丁炔-1-氧基)-1,3,5-三嗪(TPYT)和三乙炔基苯(TEB);采用差示扫描量热(DSC)法和傅里叶变换红外光谱(FT-IR)法研究了前驱体与叠氮基的反应活性,并用转鼓喷涂工艺制得了钝感发射药DAG-DG-1和DAG-DG-2,采用密闭爆发器实验测试了钝感发射药的燃烧性能。结果表明,TPYT和TEB分别能在60℃和50℃下与聚叠氮缩水甘油醚(GAP)反应,60℃下两者与GAP完全反应的时间分别为24h和12h,显示较强的反应活性;TPYT和TEB可用于叠氮硝胺发射药的表面钝感,使钝感发射药DAG-DG-1和DAG-DG-2的燃烧渐增系数分别达到1.78和1.44,获得良好的燃烧渐增性。

To improve properties of the surface deterrents of azidonitramine gun propellant,deterrent precursors 2,4,6-tris（3-butyne-1-yloxy）-1,3,5-triazine（TPYT）and 1,3,5,-triethynylbenzene（TEB）were designed and synthesized using 3-butyn-1-ol and 2-methyl-3-butyn-2-ol as raw materials.The reactivity between the deterrent precursor and azide were researched by differential scanning calorimetry（DSC）and Fourier transform infrared spectroscopy（FT-IR）.The deterred propellants DAG-DG-1 and DAG-DG-2 were prepared by rotating-drum spraying technique,and their combustion performance were measured by the closed-bomb test.The results show that TPYT and TEB can react with glycidyl azide polymer（GAP）at 60℃and 50℃respectively.At 60℃,TPYT and TEB can fully react with GAP in 24 hand 12 hrespectively,revealing that their reaction activities are strong,TPYT and TEB can be used for surface deterring of azidonitramine gun propellant and make the progressive burning factor of deterred gun propellants DAG-DG-1 and DAG-DG-2 reach 1.78 and 1.44 respectively and obtain good burning progressivity.