基于HTPB改性多功能助剂的合成及性能分析  

Synthesis and Properties of HTPB-based Modified Multifunctional Agents

作　　者：张平安 张习龙 袁剑民[1] 邓剑如[1] ZHANG Ping-an;ZHANG Xi-long;YUAN Jian-min;DENG Jian-ru(College of Chemistry and Chemical Engineering, Hunan University, Changsha 410082, China;Hubei Sanjiang Aerospace Jianghe Chemical Technology Co. Ltd., Yuan′an Hubei 444200, China)

机构地区：[1]湖南大学化学化工学院,湖南长沙410082 [2]湖北三江航天江河化工科技有限公司,湖北远安444200

出　　处：《火炸药学报》2021年第3期342-348,共7页Chinese Journal of Explosives & Propellants

摘　　要：在多羟基、多胺基聚丁二烯(AEHTPB)的基础上,向其分子结构中引入硼酸酯基团,制备出多硼酸酯基、多胺基聚丁二烯(AEHTPB-B);通过红外光谱、核磁共振氢谱对产物的结构进行表征,并对产物的黏度、玻璃化温度、羟值、胺值等理化性质进行了分析;研究了AEHTPB-B对黏合剂基体力学性能的影响,并通过装药实验探究了AEHTPB-B对丁羟四组元推进剂力学性能及燃烧性能的影响,分析了AEHTPB-B对不同填料的键合效果。结果表明,AEHTPB-B可提高黏合剂基体强度,还可同时对高氯酸铵(AP)及黑索金(RDX)填料起键合作用,有效改善丁羟四组元推进剂的力学性能;当AEHTPB-B质量分数为8%时,常温下推进剂拉伸强度(σm)可提升29.2%,最大伸长率(εm)可提升63.3%,推进剂燃速降低11.7%。On the basis of polyhydroxyl and polyamine polybutadiene(AEHTPB),borate ester group was introduced into its molecular structure to prepare polyborate ester and polyamine polybutadiene(AEHTPB-B).The structure of the target product was characterized by FTIR and 1HNMR.The physical and chemical properties of the product,such as viscosity,glass-transition temperature,hydroxyl value and amine value were also analyzed.The effects of AEHTPB-B on the mechanical properties of the binder matrix were studied,and the effects on the mechanical properties and combustion characteristics of the propellants were investigated by charging experiments.The bonding effects of AEHTPB-B on different fillers were analyzed.The results show that the addition of AEHTPB-B can enhance the strength of the binder matrix,and the AEHTPB-B has a good bonding effect on ammonium perchlorate(AP)and hexogen(RDX),which can effectively improve the mechanical properties of HTPB propellant.When the mass fraction of AEHTPB-B is 8%,the propellant tensile strength can be increased by 29.2%,the maximum elongation can be increased by 63.3%,and the burning rate can be reduced by 11.7%at room temperature.

关 键 词：有机化学 端羟基聚丁二烯(HTPB) 丁羟推进剂 化学改性 界面键合 多功能助剂 

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]