固体推进剂用新型Schiff碱类高效键合剂的合成及性能表征  

Synthesis and Property Characterization of New Schiff Base Bonding Agent for Solid Propellant

作　　者：武卓 赵志坤[3] 徐爽 李洪旭 杨玉林[1] 庞爱民 WU Zhuo;ZHAO Zhi-kun;XU Shuang;LI Hong-xu;YANG Yu-lin;PANG Ai-min(Key Laboratory of New Energy Conversion and Storage Materials,Ministry of Industry and Information,School of Chemical Engineering and Chemistry,Harbin Institute of Technology,Harbin 150001,China;Key Laboratory of Aerospace Chemical Power Technology,Xiangyang Hubei 441003,China;Hubei Institute of Aerospace Chemistry Technology,Xiangyang Hubei 441003,China)

机构地区：[1]哈尔滨工业大学化工与化学学院新能源转换与存储关键材料技术工业和信息部重点实验室,黑龙江哈尔滨150001 [2]航天化学动力技术重点实验室,湖北襄阳441003 [3]湖北航天化学技术研究所,湖北襄阳441003

出　　处：《火炸药学报》2024年第7期649-655,I0004,共8页Chinese Journal of Explosives & Propellants

基　　金：国家自然科学基金面上项目(No.21975066)。

摘　　要：为提高丁羟四组元推进剂和CL-20/GAP推进剂的力学性能,解决新的推进剂填料基体界面“脱湿”问题,设计合成了新型Schiff碱键合剂;采用傅里叶红外光谱仪、扫描电子显微镜及万能材料拉伸机等对键合剂的键合效果和推进剂的力学性能进行了表征。结果表明,合成的新型Schiff碱键合剂包含键合剂必备官能团且在AP表面存在明显键合,新型Schiff碱键合剂有望取代有毒MAPO,可明显提高丁羟四组元推进剂的力学性能,使丁羟四组元推进剂常温拉伸强度达到0.7 MPa,常温延伸率大于55%,高温延伸率大于50%,低温延伸率大于60%,并可以明显改善丁羟四组元推进剂的工艺性能;在CL-20/GAP推进剂中,新型Schiff碱键合剂可同时提高推进剂的拉伸强度和延伸率。In order to improve the mechanical properties of HTPB four component and CL-20/GAP propellants and solve the problem of“dewetting”at the interface of the novel propellant filler matrix,a new Schiff base bonding agent was designed and synthesized.The bonding effect and mechanical properties of the propellant were characterized by Fourier infrared spectroscopy,scanning electron microscopy and universal material tensioning machine.The results showed that the synthesized new Schiff base bonding agent contained the essential functional groups of the bonding agent and had obvious bonding on the AP surface.The new Schiff base bonding agent was expected to replace the toxic MAPO and significantly improve the mechanical properties of HTPB four component propellant,the strength of HTPB four component propellant reached 0.7 MPa,and the elongation was greater than 55%at room temperature.The elongation at high and low temperature are greater than 50%and 60%respectively.The processing performance of HTPB four component propellants can be significantly improved.In CL-20/GAP propellant,the new Schiff base bonding agent can improve the strength and elongation of the propellant at the same time.

关 键 词：材料力学 丁羟推进剂 键合剂 力学性能 SCHIFF碱 界面脱湿 MAPO 

分 类 号：TJ55[兵器科学与技术—军事化学与烟火技术] V512[航空宇航科学与技术—航空宇航推进理论与工程]