摘要
以粒径为200~300μm的硅藻土颗粒作为乳化基质的载体来制备低爆速乳化炸药。对硅藻土的微观性能进行表征,分析硅藻土质量分数对炸药的粒径和爆轰机理的影响,测量炸药的密度、爆速、空中爆炸冲击波压力,并进行了硅藻土与乳化基质的相容性测试。结果表明,当硅藻土质量分数由15%增加至35%时,炸药粒径与硅藻土含量呈现负相关,炸药的密度由0.79 g·cm^(-3)降至0.51 g·cm^(-3),爆速由2561 m·s^(-1)降至1655 m·s^(-1),空中爆炸冲击波压力峰值由0.061 MPa降至0.023 MPa;硅藻土的加入对乳化基质的热安定性没有影响,并且硅藻土和乳化基质在常温与加热条件下均不会相互反应,储存期2 d和120 d的炸药,其爆速和空中爆炸冲击波压力峰值降幅均小于5%,说明硅藻土与乳化基质有良好的相容性。
Diatomite particles with size distribution of 200^(-3)00μm were used as emulsifying matrix carrier to prepare low deto⁃nation velocity emulsified explosive.The microscopic properties of diatomite were characterized.The effects of diatomite mass fraction on the particle size and detonation mechanism of explosive were analyzed.The density,detonation velocity and air ex⁃plosion shock wave pressure of explosive were measured.The compatibility of diatomite and emulsified matrix was tested.The results show that when the mass fraction of diatomite increases from 15%to 35%,the particle size of explosive is negatively cor⁃related with the content of diatomite,the density of explosive decreases from 0.79 g·cm^(-3) to 0.51 g·cm^(-3),and the detonation ve⁃locity decreases from 2561 m·s^(-1) to 1655 m·s^(-1).The peak pressure of air explosion shock wave decreases from 0.061 MPa to 0.023 MPa.The addition of diatomite has no effect on the thermal stability of emulsified matrix,and the diatomite and emulsi⁃fied matrix do not react with each other under room temperature or heating conditions.The detonation velocity and the peak pressure of air explosion shock wave of the explosive stored for 2 days and 120 days drop less than 5%,indicating that diatomite has good compatibility with emulsified matrix.
作者
孙宝亮
黄文尧
汪泉
潮捷
檀鑫
牛草原
胡洁
SUN Bao-liang;HUANG Wen-yao;WANG Quan;CHAO Jie;TAN Xin;NIU Cao-yuan;HU Jie(School of Chemical Engineering,Anhui University of Science and Technology,Huainan 232001,China)
出处
《含能材料》
EI
CAS
CSCD
北大核心
2023年第1期26-34,共9页
Chinese Journal of Energetic Materials
基金
国家自然科学基金资助(11872002)。
关键词
硅藻土颗粒
乳化基质
低爆速乳化炸药
热安定性
相容性
diatomite particles
emulsion matrix
low detonation velocity emulsion explosive
thermal stability
compatibility
