日用化学工业（中英文）2024，Vol.54Issue(7)：751-758,8.DOI:10.3969/j.issn.2097-2806.2024.07.001
纳米SiO2颗粒稳定非水相泡沫的排液行为研究
Study on the drainage behavior of non-aqueous foams stabilized by nano-silica particles
摘要
Abstract
Non-aqueous foams have a wide range of applications in petrochemical industry,food industry,daily chemical industry and biomedical industry.However,the low surface tension and low dielectric constant of non-aqueous solvents lead to the difficulty in forming stable foams.The unique advantages of nano-silica particles in foaming and foam stabilization are getting more and more attention.In this work,the surface wettability of 14 nm nano-silica particles was modified with dichlorodimethylsilane(DCDMS).The effects of wettability of these nano-silica particles on the drainage behaviors of several non-aqueous foams were studied.It was found that,with the increase of the polarity of non-aqueous solvents,the foaming performance showed a gradually increasing trend.The drainage process for non-aqueous foam could be divided into three stages:The initial stage,the middle stage,and the end stage.With the increase of the surface wettability of nano-silica particles,the half-life of foam was first increased and then decreased.The half-life of foams of highly polar solvents could reach 45 min,and the half-life of foams of moderately polar solvents could reach 60 min.Under optical microscope,it was observed that with drainage,the bubble size of foams gradually increased and the shape gradually became polygonal.关键词
纳米SiO2颗粒/润湿性/非水相泡沫/排液曲线/排液半衰期Key words
nano-silica particle/wettability/non-aqueous foam/drainage curve/drainage half-life分类
化学工程引用本文复制引用
高婷婷,燕永利,张随望,陈钰,贺炳成..纳米SiO2颗粒稳定非水相泡沫的排液行为研究[J].日用化学工业（中英文）,2024,54(7):751-758,8.基金项目
国家自然科学基金资助项目(22272126,21773183) （22272126,21773183）
陕西省自然科学基金资助项目(2018JM2011) （2018JM2011）
西安石油大学研究生创新与实践能力培养项目(YCS22214216) （YCS22214216）
