日用化学工业（中英文）2025，Vol.55Issue(2)：176-184,9.DOI:10.3969/j.issn.2097-2806.2025.02.006
Pickering Janus乳液微观结构的影响因素及其应用
Influence factors on microstructure of Pickering Janus emulsions and its application
摘要
Abstract
Janus emulsions stabilized by solid particles as emulsifier can be called Pickering Janus emulsions.Pickering Janus emulsions have double advantages of Pickering emulsions and Janus emulsions.Compared with the traditional emulsions,Janus emulsions have the advantages of stronger separation and better solubilization abilities,and have broad application prospects in the transportation and storage of active substances.Compared with Janus emulsions stabilized by surfactant,Janus emulsions stabilized by solid particles are less toxic,more stable and environmentally friendly.In this paper,Pickering Janus emulsions,in which cellulose nanocrystals(CNCs)was used as emulsifier and silicone oil(O1)and its immiscible oil(O2)were used as oil phases,were prepared by one-step homogenization method.The effects of oil property(O2),the relative content of O1 to O2,the content of coemulsifier and preparation technology on the topological structure and droplet size of the emulsions were investigated.The results show that Pickering Janus emulsions have highly controllable topology and size.By changing the type of oil(O2),the emulsion droplets can be changed from a partially engulfed dumbbell Janus structure to a fully engulfed core-shell structure.By adjusting the relative content of O1 to O2,the volume ratio of two phases in the droplet can be precisely controlled.The surface coverage of one phase relative to another can be adjusted by changing the content of coemulsifier.In addition,the size of the emulsion droplets can be controlled by changing the emulsification energy(such as the homogenization rate).The higher homogenization rate is,the smaller sizes of the droplets are.The release behavior of the active substances in the system can also be adjusted by changing the relative content of two oils or the content of coemulsifier.In addition,Pickering Janus emulsion has a better slow-release effect than traditional Janus emulsion.This study provides guidance for the practical application of the new emulsion system in the field of cosmetics.关键词
Pickering Janus乳液/拓扑结构/固体颗粒/缓释Key words
Pickering Janus emulsion/topological structure/solid particle/slow release分类
化学化工引用本文复制引用
韩旭,吴槚佳,周康夫,尚亚卓..Pickering Janus乳液微观结构的影响因素及其应用[J].日用化学工业（中英文）,2025,55(2):176-184,9.基金项目
中央高校基本科研业务费专项资金(222201717003) （222201717003）
