化工学报2025，Vol.76Issue(3)：1334-1345,12.DOI:10.11949/0438-1157.20240811
喷雾闪蒸制备微纳米颗粒
Spray flash evaporation preparation of micro/nanoparticles
摘要
Abstract
This study presents the design and construction of an experimental device for the preparation of micro/nanoparticles through a spray flash evaporation.Solutions containing organic solutes are sprayed into a vacuum flash evaporation chamber to obtain the organic micro/nanoparticles.The experiment included an initial pressure of 3.0-4.5 MPa,an initial temperature of 130-200℃,three sets of nozzles with different diameters,and four sets of organic solutes.Using the 0.10 mm nozzle,the particle size distribution of p-toluene sulfonamide ranges from 0 to 30 μm.When the initial conditions are increased to 4.5 MPa and 170℃,the proportion of particles smaller than 6 μm can be increased to 62%and 75%,respectively.This indicates that increasing the initial conditions has a significant refinement effect on the particles.In addition,increasing the nozzle size will further increase the particle size and non-uniformity due to the suppression of flash evaporation caused by the deterioration of atomization effect.Therefore,the small diameter nozzle can produce smaller,more concentrated,and uniformly distributed micro/nanoparticles.The particle morphology and size of different organic solutes are different,but the particle size is distributed within 40 μm,indicating that this experimental device has a certain universality.关键词
喷雾闪蒸/有机溶质/制备/微纳米颗粒/粒子形成/粒度分布Key words
spray flash evaporation/organic solutes/preparation/micro/nanoparticles/particle formation/particle size distribution分类
能源科技引用本文复制引用
蔡本安,张建新,龙城君,杜乔琛,车勋建,张义迎,蔡伟华..喷雾闪蒸制备微纳米颗粒[J].化工学报,2025,76(3):1334-1345,12.基金项目
国家自然科学基金项目(52206194) （52206194）
吉林省自然科学基金项目(20230101342JC) （20230101342JC）
