关键词: 微流体学, 微反应器, 流动, 界面, 加工制造, 功能材料

Abstract: Microfluidic technology is an efficient tool to control micro-scale phase interfaces precisely；therefore it is an important novel approach for design，preparation，and performance regulation and control of new functional materials with controllable micro-structures. In this paper，the controllable construction of two types of stable micro-scale phase interfaces with microfluidics is introduced. One type is the emulsion droplet system with enclosed liquid-liquid phase interface，and the other type is the laminar flow system with non-enclosed layered and annular liquid-liquid phase interface. The progress of preparation of three categories of functional materials with these two types of microfluidics-generated stable phase interface architectures as templates is reviewed，including fabrication of microspheres and microcapsules with emulsion droplets as templates，preparation of membranes in microchannels with layered laminar flow systems as templates，and synthesis of microfiber materials with annular laminar flow systems as templates. Microfluidic technology brings new opportunities for the realization of small-scale features and multi-functions of functional materials，ultra-thin membranes and ultra-fine fibers，and integration of materials and components. In the future，further in-depth and systematic understanding of design and regulation of the liquid-liquid phase interfaces as well as the regularities and mechanisms in the synthesis processes of functional materials should be emphasized.

Key words: microfluidics, microreactor, flow, interface, fabrication, functional materials