双重乳液的微流控制备进展

发布时间：2019-01-18 19:34

【摘要】：双重乳液是一种离散相液滴中还包裹着更小的液滴的高度结构化流体,单分散的在食品、化工、医疗等领域有着广泛的应用。微流控技术作为一门研究微尺度流体的新兴技术,已经成为制备优质双重乳液的首选。本文对被动式微流控技术进行了系统地综述,介绍了协流式、交叉流式、流动聚焦式微通道的结构及其乳化机理,展望了该项技术在微液滴制备方面的发展前景。在学科交叉应用的背景下,通过对微流控装置的改进与升级,可以克服常见微流控方法出现的双乳液生产效率低,不具备超薄壁结构等问题。此外,本文还讨论了微流控技术背景下双重乳液流型演化研究的进展,提出可以通过单乳液的研究基础,联系和发展双重乳液流型演化的完备理论体系。
[Abstract]:Dual emulsion is a highly structured fluid with smaller droplets in discrete phase droplets. Monodisperse emulsion is widely used in food, chemical, medical and other fields. As a new technology to study micro-scale fluids, microfluidic technology has become the first choice for the preparation of high-quality dual emulsion. In this paper, the passive microfluidic technology is systematically reviewed. The structure and emulsification mechanism of coflow, cross flow and flow focusing microchannels are introduced, and the development prospects of this technology in the preparation of microdroplets are prospected. Under the background of interdisciplinary application, by improving and upgrading the microfluidic device, the problems such as low production efficiency and lack of ultra-thin wall structure can be overcome in common microfluidic methods. In addition, this paper also discusses the progress in the evolution of dual emulsion flow patterns under the background of microfluidic technology, and puts forward a complete theoretical system for linking and developing the evolution of dual emulsion flow patterns through the research foundation of single emulsion.
【作者单位】：东南大学能源与环境学院;扬州大学水利与能源动力工程学院;
【基金】：国家自然科学基金青年科学基金(51306033) 江苏省自然科学基金(BK20130621) 中国博士后科学基金(2015T80478,2014M561551)项目
【分类号】：O35

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