高级脂肪酸酯类化合物包覆RDX的研究  

Properties of RDX Coated by Higher Aliphatic Ester Compounds

作　　者：王娟[1] 孙笑[1] 周新利[1] 

机构地区：[1]南京理工大学化工学院,江苏南京210094

出　　处：《含能材料》2015年第6期527-531,共5页Chinese Journal of Energetic Materials

摘　　要：为了解高级脂肪酸酯类化合物对黑索今(RDX)性能的影响,以RDX为主体,分别添加质量分数为3%和5%的2,3-二羟甲基-2,3-二硝基-1,4-丁二醇四月桂酸酯(BHDBTL)、2,3-二羟甲基-2,3-二硝基-1,4-丁二醇四硬脂酸酯(BHDBTS)和2,3-二羟甲基-2,3-二硝基-1,4-丁二醇四(12-羟基硬脂酸酯)(BHDBTHS)包覆RDX,制备了6个钝感RDX配方。用红外光谱(IR)、扫描电镜(SEM)、激光粒径分析、差示扫描量热分析(DSC)表征了包覆前后RDX的结构和性能,并依据GJB772-1997测试了其机械感度。结果表明,被5%BHDBTL,BHDBTS,BHDBTHS包覆的RDX比表面积分别由0.0374m2·g-1增大至0.173m2·g-1、0.344m2·g-1、0.328m2·g-1;包覆后RDX的分解热提高,当包覆剂为5%BHDBTHS时,RDX的分解热由1479.1J·g-1提高至1912.5J·g-1;当包覆剂为5%的BHDBTL、BHDBTS和BHDBTHS时,包覆后RDX的撞击感度分别为28%、48%、52%,摩擦感度分别为20%、60%、48%。In order to study the effect of higher aliphatic ester compounds on the properties of RDX,six insensitive samples（RDX coated by 2,3-bis（hydroxymethyl）-2,3-dinitro-1,4-butanediol tetralaurate（BHDBTL）,2,3-bis（hydroxymethyl）-2,3-dinitro-1,4-butanediol tetrastearate（BHDBTS）,2,3-bis（hydroxymethyl）-2,3-dinitro-1,4-butanediol tetra（12-hydroxyl stearate）（BHDBTHS）with mass fraction of 3% or5%,respectively）were prepared.All RDX samples were characterized by infrared spectroscopy（IR）,scanning electron microscope（SEM）,laser particle size analyzer,differential scanning calorimetry（DSC）,and their mechanical sensitivity were tested by GJB772-1997.Results show that the particle size of coated RDX decreases signally,and the specific surface area of RDX coated by 5% BHDBTL,BHDBTS,BHDBTHS increase from 0.0374m2·g^-1 to 0.173m2·g^-1,0.344m2·g^-1 and 0.328m2·g^-1,respectively.The decomposition heat of coated RDX increased,for addition of 5% BHDBTHS,the decomposition heat increases from 1479.1J·g^-1 to 1912.5J·g^-1.The impact sensitivity of RDX coated by 5% BHDBTL,BHDBTS and BHDBTHS are 28%,48%,52% and the friction sensitivity were 20%,60%,48%,respectively.

关 键 词：高级脂肪酸酯 黑索今(RDX) 包覆 热性能 感度 

分 类 号：TQ560.1[化学工程—炸药化工]