From core-shell to Janus: Microfluidic preparation and morphology transition of Gas/Oil/Water emulsions. (23rd November 2017)

• Record Type: Journal Article
• Authors: Zhang, Shao-Bin; Ge, Xue-Hui; Geng, Yu-Hao; Luo, Guang-Sheng; Chen, Jian; Xu, Jian-Hong
• Is Part Of: Chemical engineering science. Volume 172(2017)
• Page Start: 100
• Page End: 106
• Publication Date: 2017-11-23
• Subjects: Microfluidics -- Gas-liquid-liquid emulsions -- Microparticles -- Janus; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; Chemical engineering; Periodicals; Electronic journals; 660
• DOI: 10.1016/j.ces.2017.06.031
• Languages: English
• ISSNs: 0009-2509

Abstract

Highlights: A novel and simple strategy to produce Gas/Oil/Water emulsions with controlled morphologies is developed. We achieved the morphology transition of Gas/Oil/Water emulsions: from core-shell to Janus. The morphology of Janus droplets can be tuned by changing several parameters. Abstract: In this article, gas-liquid-liquid emulsion drops were firstly generated by one-step method in a coaxial microfluidic device. Based on that, the effects of several parameters on the morphology transition from core-shell to Janus droplets was studied systematically. By tuning flow rates, interfacial tensions and viscosity, we can change the size and morphology of droplets. Furthermore, non-spherical microparticles were obtained by using photo-responsive reagent through solidification. The developed approach offers a novel and simple strategy on the synthesis of Janus emulsions and anisotropic microparticles with controlled morphologies.