高压物理学报2024，Vol.38Issue(4)：145-153,9.DOI:10.11858/gywlxb.20230838
模拟高原环境下敏化方式对乳化炸药爆轰性能的影响研究
Effect of Aensitization Methods on Detonation Performance of Emulsion Explosive in Simulated Plateau Environment
摘要
Abstract
In order to study the influence of plateau environment on emulsion explosive sensitized by different methods,three typical sensitization materials were selected to prepare emulsion explosive samples.The changes in microstructure and detonation performance of samples stored in simulated plateau environment(-20℃,about 0.05 MPa)were analyzed.The results showed that the low temperature and low pressure of plateau environment mainly affects the performance of explosives from the aspects of aggravating the stability of emulsion system and the distribution of hot spots.In the plateau environment,the crystallization degree of chemically sensitized explosives is lower than that of physically sensitized explosives but the hot spots change greatly,leading to a decrease in detonation performance.In the physical sensitization,the growth mode of expanded perlite explosive crystal is more complex,so it is easier to demulsify and crystallize,and the storage stability and detonation performance are significantly reduced.The degree of crystallization and detonation performance of resin microsphere explosive are relatively stable under low temperature and low pressure.In general,resin microspheres emulsion explosive has better adaptability to plateau.关键词
高原爆破/低温低压/乳化炸药/敏化方式/树脂微球/膨胀珍珠岩Key words
blasting at plateau/low temperature and low pressure/emulsion explosive/sensitization method/resin microspheres/expanded perlite分类
力学引用本文复制引用
陈正严,吴红波,蔡心远,马成帅,谢守东..模拟高原环境下敏化方式对乳化炸药爆轰性能的影响研究[J].高压物理学报,2024,38(4):145-153,9.基金项目
安徽高校自然科学研究重点项目(KJ2019A0121) （KJ2019A0121）
