Our official English website, www.x-mol.net, welcomes your
feedback! (Note: you will need to create a separate account there.)
Design of Nanofibrous and Microfibrous Channels for Fast Capillary Flow
Langmuir ( IF 3.7 ) Pub Date : 2018-01-05 00:00:00 , DOI: 10.1021/acs.langmuir.7b01797 Dahua Shou 1 , Jintu Fan 1
Langmuir ( IF 3.7 ) Pub Date : 2018-01-05 00:00:00 , DOI: 10.1021/acs.langmuir.7b01797 Dahua Shou 1 , Jintu Fan 1
Affiliation
|
The speed of capillary flow is a key bottleneck in improving the performance of nanofluidic and microfluidic devices for various applications including microfluidic diagnostics, thermal management heat pipes, micromolding devices, functional fabrics, and oil–water separators. Here, we present a novel nanofibrous or microfibrous hollow-wedged channel (named as W-Channel), which can significantly speed up the capillary flow. The capillary flow in the initial 100 s in the nanofibrous W-Channel was shown to be 8 times faster than that in the single-layer strip of the same material when placed vertically and over 20 times faster when placed horizontally. The enhanced flow under gravity is attributed to the adaptive interplay of capillary pressure and flow resistance within the triangular hollow wedge between the fibrous layers. The W-Channel can be fabricated following a simple procedure using inexpensive materials such as electrospun nanofibers or microfibrous filter papers.
中文翻译：
快速毛细管流动的纳米纤维和微纤维通道的设计
毛细管流动的速度是提高纳米流体和微流体设备在各种应用中的性能的关键瓶颈，这些应用包括微流体诊断，热管理热管，微成型设备，功能性织物和油水分离器。在这里，我们提出了一种新型的纳米纤维或微纤维中空楔形通道（称为W通道），可以显着加快毛细管流动。纳米纤维W通道在最初100 s内的毛细管流动显示为垂直放置时，是相同材料的单层条带中毛细管流动的8倍，水平放置时是20倍以上。在重力作用下增加的流动归因于毛细压力和纤维层之间的三角形空心楔形物内的流动阻力的自适应相互作用。
更新日期：2018-01-05
中文翻译：
快速毛细管流动的纳米纤维和微纤维通道的设计
毛细管流动的速度是提高纳米流体和微流体设备在各种应用中的性能的关键瓶颈，这些应用包括微流体诊断，热管理热管，微成型设备，功能性织物和油水分离器。在这里，我们提出了一种新型的纳米纤维或微纤维中空楔形通道（称为W通道），可以显着加快毛细管流动。纳米纤维W通道在最初100 s内的毛细管流动显示为垂直放置时，是相同材料的单层条带中毛细管流动的8倍，水平放置时是20倍以上。在重力作用下增加的流动归因于毛细压力和纤维层之间的三角形空心楔形物内的流动阻力的自适应相互作用。
京公网安备 11010802027423号