New portable microchannel molding system based on micro-wire molding, droplet formation studies in circular cross-section microchannel
New portable microchannel molding system based on micro-wire molding, droplet formation studies in circular cross-section microchannel
复制标题
DOI：
10.1016/j.mtcomm.2018.05.006
复制
发表时间：
2018-09-01
影响因子：
3.8
通讯作者：
Pourabbas, Behzad
中科院分区：
文献类型：
--
作者：
Effati, Elham;Pourabbas, Behzad
这项工作描述了一种通过称为微线成型的快速工艺设计和制造各种 3D 微通道的新设备。该方法提供了多种可能性，包括同时固化和成型，无需任何位移或固化炉。金属和尼龙微丝均可用于该方法。该方法的设计使得模制容器需要最少的聚二甲基硅氧烷，从而提供了生产具有不同横截面、形状和几何形状的通道的可能性。在直径为 800 μm 的圆形横截面通道内，T 形接头用于生成油包水微滴，并以两种不同的被检测液体作为连续相。研究了相的相对流速和粘度的影响，并证明这些参数影响通道内运行相内液滴的形状、尺寸、速度和分离。
This work describes a new appliance for design and fabrication of various 3D microchannels by a quick process known as micro-wire molding. The method provides several possibilities including simultaneous curing and molding without any displacement or a curing oven. Both metallic and Nylon micro-wires can be used in this method. The method is designed so that the molding container needs minimal polydimethylsiloxane providing possibility to produce channels with different cross-sections, shapes and geometries. Inside a circular cross-section channel by 800 mu m diameter, a T-junction is used to generate micro-droplets of water in oil with two different examined liquids as the continuous phases. The effect of relative flow rate and viscosity of the phases have been studied and demonstrated that these parameters affect the shape, size, velocity and separation of the droplets inside the running phase within the channel.