火炸药学报2024，Vol.47Issue(6)：498-505,8.DOI:10.14077/j.issn.1007-7812.202403023
超细HMX的微流体结晶调控及高通量制备
Microfluidic Crystallization Control and High-throughput Preparation of Ultrafine HMX
摘要
Abstract
To make accurate control of crystal microstructure and improve the crystal quality and quality consistence of ultra-fine energetic materials,a microfluidic crystallization platform was established and the flow characteristics of fluids under mi-croscale conditions were studied by taken HMX as the research object.The effect of reaction parameters such as concentration and flow on the morphology of ultrafine HMX crystals was studied and the large-scale preparation of ultrafine HMX was ex-plored.The results show that the swirling chip has better mass transfer effect and thinner boundary layer effect than the heart shaped chip,make it more suitable for the preparation of brittle crystals.When DMSO is used as solvent,HMX crystals have good morphology with uniform size and high sphericity.When the flow ratios R are 1,5,and 10,the average particle sizes of HMX are 8.86,4.14,and0.86µm,respectively.With the increasing of R,the particle size of HMX gradually decreases and the particle size distribution narrows.By changing the process parameters,microfluidic crystallization can realize the con-trollable preparation of ultrafine HMX with different morphologies and particle sizes.The high-throughput preparation of ultra-fine HMX is realized by multi-layer combination and parallel shunt.This method not only has the merits of small mixing efficien-cy difference,large product processing capacity and low overall energy consumption of the equipment,but also provides a way for the high-throughput preparation of micro-nano energetic materials with narrow particle size range.关键词
物理化学/微流体技术/超细HMX/流体模拟/结晶调控/高通量制备Key words
physical chemistry/microfluidic technology/ultrafine HMX/fluid simulation/crystallization control/high-through-put preparation分类
军事科技引用本文复制引用
姜菡雨,徐司雨,于谨,刘博,赵双飞,王煊军..超细HMX的微流体结晶调控及高通量制备[J].火炸药学报,2024,47(6):498-505,8.基金项目
国家自然科学基金(No.2140316) （No.2140316）
