压装PBX用新型有机硅中性聚合物键合剂的合成及应用  

Synthesis and application of novel organo-silicone neutral polymeric bonding agent for pressed PBX

作　　者：董亚希 王丽丽 白国强 李晓峰 陈洛亮 Dong Yaxi;Wang Lili;Bai Guoqiang;Li Xiaofeng;Chen Luoliang(Liming Research&Design Institute of Chemical Industry Co.,Ltd.,Luoyang 471000,China)

机构地区：[1]黎明化工研究设计院有限责任公司,河南洛阳471000

出　　处：《化学推进剂与高分子材料》2024年第4期22-26,55,共6页Chemical Propellants & Polymeric Materials

摘　　要：以丙烯腈、甲基丙烯酸甲酯、丙烯酸羟乙酯、γ–甲基丙烯酰氧基丙基三甲氧基硅烷为聚合单体,通过自由基溶液聚合反应制备了一系列压装高聚物黏结炸药(PBX)用新型有机硅中性聚合物键合剂(LBA–315)。通过傅里叶变换红外光谱(FTIR)、核磁共振氢谱(1H–NMR)、元素分析、电感耦合等离子体发射光谱仪(ICP–OES)、凝胶渗透色谱(GPC)等确定了产品的结构。分子动力学模拟研究表明,LBA–315键合剂的效果优于传统的中性聚合物键合剂(NPBA)和硅烷偶联剂γ–氨基丙基三乙氧基硅烷(KH550)。X射线光电子能谱(XPS)测试结果表明,LBA–315键合剂对1,3,5–三氨基–2,4,6–三硝基苯(TATB)具有较好的包覆效果。初步应用研究表明,LBA–315键合剂应用于高聚物黏结炸药配方中,使炸药药柱常温抗拉强度和最大延伸率分别提高了89.3%和88.2%。Using acrylonitrile,methyl methacrylate,hydroxyethyl acrylate,γ-methacryloxypropyltrimethoxysilane as polymerization monomers,a series of novel organo-silicone neutral polymeric bonding agents(LBA-315)for pressed polymer bonded explosive(PBX)were prepared by free radical solution polymerization reaction.The structure of the products was confirmed by Fourier transform infrared(FTIR)spectrum,nuclear magnetic resonance hydrogen spectrum(1H-NMR),elemental analysis,inductively coupled plasma emission spectrometer(ICP-OES),gel permeation chromatography(GPC)and so on.The molecular dynamics simulation studies showed that the effect of LBA-315 bonding agent was superior to those of traditional neutral polymeric bonding agent(NPBA)and silane coupling agentγ-aminopropyl triethoxysilane(KH550).The X ray photoelectron spectroscopy(XPS)testing results showed that LBA-315 bonding agent had good coating effect on 1,3,5-triamino-2,4,6-trinitrobenzene(TATB).The preliminary application studies showed that when the LBA-315 bonding agent was used in the polymer bonded explosive formulations,the ambient temperature tensile strength and the maximum elongation of the explosive grains were improved by 89.3%and 88.2%,respectively.

关 键 词：有机硅 中性聚合物键合剂 分子动力学 包覆 力学性能 

分 类 号：V512[航空宇航科学与技术—航空宇航推进理论与工程] TQ564[化学工程—炸药化工]