高压物理学报2026，Vol.40Issue(5)：112-119,8.DOI:10.11858/gywlxb.20251252
表面活性剂改性硝酸铵性能
Properties of Surfactant-Modified Ammonium Nitrate
摘要
Abstract
Porous ammonium nitrate is frequently used for specific applications due to its porous structure when compared with conventional ammonium nitrate,however,its higher transportation costs increase overall operational expenses.This study investigated the preparation of porous granular modified ammonium nitrate using ionic surfactant PST as an additive via spray granulation.The effects of varying PST concentrations(0-0.4%)on the pore structure,oil absorption capacity,thermal stability,and explosive properties of ammonium nitrate were examined.The research results indicate that increasing PST content gradually transforms dense ammonium nitrate particles into a porous structure with distinct interconnected pores.Thermal stability remains essentially unchanged,and the matrix chemical composition undergoes no fundamental alteration,though its adsorbed water content decreases.The modified samples exhibit enhanced binding capacity with the oil phase.The detonation velocity of the assembled charge increases from"failed to detonate normally"in the unmodified state to 2 831.85 m/s.Trace amounts of PST can induce the formation of a porous structure in ammonium nitrate without significantly compromising thermal safety,while markedly improving detonation velocity performance,demonstrating potential for engineering applications.关键词
改性硝酸铵/喷雾造粒/孔隙率/热稳定性/爆炸性能Key words
modified ammonium nitrate/spray granulation/porosity/thermal stability/explosive properties分类
化学化工引用本文复制引用
汪鑫齐,吴红波,胡鹏飞,任梦雨,谢孟治,夏文杰,朱磊磊..表面活性剂改性硝酸铵性能[J].高压物理学报,2026,40(5):112-119,8.基金项目
安徽高校自然科学研究重大项目(2024AH040070) （2024AH040070）
