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化学工业与工程 2021, Vol. 38 Issue (5) :42-52    DOI: 10.13353/j.issn.1004.9533.20210357
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微流控技术中液滴聚并的研究进展
郭未希, 朱春英, 付涛涛, 马友光
天津大学化工学院, 化学工程联合国家重点实验室, 天津 300072
Research Progress of Droplet Coalescence in Microfluidic Technology
Guo Weixi, Zhu Chunying, Fu Taotao, Ma Youguang
State Key Laboratory of Chemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China

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摘要 随着微流控技术的发展,在微通道内精确调控液滴行为的研究受到越来越多的关注。详细介绍了引发液滴聚并的方式,包括主动聚并和被动聚并。主动聚并是指施加电场、磁场、温度场等引起液滴融合,被动聚并是指通过改变通道结构或改变通道壁面润湿性促进聚并发生。此外,综述了液滴聚并动力学研究进展,例如:液膜排出时间和临界毛细管数。最后对聚并过程中的流场研究做了简要介绍。对液滴聚并的后续机理研究、探索高效的聚并方式和聚并的实际应用具有重要的指导意义。
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郭未希
朱春英
付涛涛
马友光
关键词微流控技术   微通道   液滴   聚并     
Abstract: With the development of microfluidic technology, the research of precise control of droplet behavior in microchannels has received increasing attention. The methods of initiating droplet coalescence including active methods and passive methods are introduced in detail. The active methods refer to trigger droplet fusion by applying electric field, magnetic field, temperature field, etc, and the passive methods refer to the promotion of coalescence by changing the channel structure or the wettability of the channel wall. Furthermore, the research progress of the dynamics of droplet coalescence is reviewed, such as the liquid film draining time and the critical capillary number. Moreover, the flow field research in the process of coalescence is briefly introduced. This article has important guiding significance for the follow-up mechanism research on the droplet coalescence, the exploration of efficient coalescence methods and the practical application of coalescence.
Keywordsmicrofluidic technology   microchannel   droplet   coalescence     
Received 2021-04-27;
Fund:国家自然科学基金项目(92034303;21978197)。
Corresponding Authors: 马友光,E-mail:ygma@tju.edu.cn。     Email: ygma@tju.edu.cn
About author: 郭未希(1996-),女,硕士研究生,现从事多相过程与微化工技术方面的研究。
引用本文:   
郭未希, 朱春英, 付涛涛, 马友光.微流控技术中液滴聚并的研究进展[J].  化学工业与工程, 2021,38(5): 42-52
Guo Weixi, Zhu Chunying, Fu Taotao, Ma Youguang.Research Progress of Droplet Coalescence in Microfluidic Technology[J].  Chemcial Industry and Engineering, 2021,38(5): 42-52
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