摘要
微波连续流反应器相比传统反应器具有快速、高效的优势。常规缩聚合成方法存在能耗高、生产时间长和污染大等缺点。因此,为探索微波连续流制备钝感剂工艺,本文设计了微波连续流反应器用于新型钝感剂合成。以己二酸和2-乙基-2-硝基-1,3-丙二醇为原料,在微波连续流反应器中进行缩聚反应,研究了温度、微波功率、流速和反应时间对缩聚过程性能的影响,通过FT-IR和NMR方式对其进行表征。对比常规合成和“封闭式”微波辅助合成,结果表明:微波连续流反应能有效缩短反应时间,提高合成效率及处理能力。热重分析结果表明:合成的聚酯钝感剂热分解温度在300℃以上,热稳定性更好。
Microwave continuous-flow reactors are a valuable alternative to conventional reactors for accelerating chemical reactions.Conventional preparation methods of polycondensation reaction has disadvantages of high energy consumption,long production time and pollution.Therefore,to explore the process of preparing insensitive propellant by microwave flow reactor method.In this paper,a microwave continuous flow reactor was designed for the synthesis of new insensitive propellants.The polycondensation reaction of adipic acid and 2-ethyl-2-nitro-1,3-propanediol was carried out in a microwave continuous flow reactor.The temperature,microwave power,flow velocity and process time was explored.The structure was characterized by FT-IR and NMR.Compared with conventional synthesis and“closed”microwave-assisted synthesis,the results showed that microwave continuous flow reaction can effectively shorten the reaction time,improve efficiency and processing capacity.TGA results showed that the thermal decomposition temperature of polyester desensitizer was above 300℃,the thermal stability was better.
作者
王金玉
薛田
邹帅
王辛欣
王爱红
杨琴琴
WANG Jinyu;XUE Tian;ZOU Shuai;WANG Xinxin;WANG Aihong;YANG Qinqin(61699 Unit of People's Liberation Army of China,Yichang 443200,China)
出处
《合成化学》
2025年第3期190-197,共8页
Chinese Journal of Synthetic Chemistry
关键词
波连续流反应器
钝感剂
缩聚
工艺
合成
microwave flow reactor
insensitive propellant
polycondensation reaction
process
synthesis
