低玻璃化温度含能增塑剂与HTPB的相容性模拟研究  

Simulation study on compatibility between low glass transition temperature energetic plasticizers and HTPB

作　　者：李承睿 郭妮京 姚强 李玉超 张艳 冀占慧 Li Chengrui;Guo Nijing;Yao Qiang;Li Yuchao;Zhang Yan;Ji Zhanhui(Inner Mongolia Institute of Synthetic Chemical Industry,Hohhot 010010,China)

机构地区：[1]内蒙合成化工研究所,内蒙古呼和浩特010010

出　　处：《化学推进剂与高分子材料》2025年第2期25-29,共5页Chemical Propellants & Polymeric Materials

摘　　要：为提高端羟基聚丁二烯(HTPB)推进剂低温力学性能和能量,扩大其温度适用范围,开展了HTPB黏合剂与新型低温含能增塑剂的相容性探索研究。采用分子动力学方法,模拟研究了HTPB纯物质、HTPB与癸二酸二辛酯(DOS)、HTPB与硝化甘油(NG)及HTPB与5种低温含能增塑剂在不同温度下的密度曲线。结果表明,HTPB与增塑剂DOS、A6(2,2–二硝基丙醇正己酸酯)、ACR–ENP–1(2–硝基–1,3–二(三氟乙氧基)丙烷)、DNPEB(2,2–二硝基丙基–2–丁酸乙酯)相容性较好,与增塑剂NG、GLYN(1,5–双(2,3–二叠氮基丙氧基)戊烷)、DGTN(一缩二甘油四硝酸酯)相容性较差。该模拟方法可用于预测聚合物/增塑剂的相容性,可为适用于HTPB推进剂的含能增塑剂设计提供理论指导。In order to improve the low temperature mechanical performance and energy of hydroxyl-terminated polybutadiene(HTPB)propellants and to expand their temperature application range,the exploration research on the compatibility between HTPB binder and novel low temperature energetic plasticizers was conducted.The density curves of HTPB pure substance,HTPB with dioctyl sebacate(DOS),HTPB with nitroglycerin(NG),and HTPB with five kinds of low temperature energetic plasticizers at different temperatures were simulated and investigated by using molecular dynamics method.The results showed that HTPB had good compatibility with the plasticizers including DOS,A6(2,2-dinitropropanol n-hexanoate),ACR-ENP-1(2-nitro-1,3-di(trifluoroethoxy)propane),DNPEB(2,2-dinitropropyl-2-butyric acid ethyl ester),but had poor compatibility with the plasticizers including NG,GLYN(1,5-bis(2,3-diazidopropoxy)pentane)and DGTN(diglyceride tetranitrate).The simulation method could be used to predict the compatibility of polymer/plasticizer,and provide theoretical guidance for the design of energetic plasticizers suitable for HTPB propellants.

关 键 词：物理相容性 低玻璃化温度 含能增塑剂 HTPB 

分 类 号：TQ226[化学工程—有机化工]