Impacts of Wettability on Immiscible Fluid Flow Pattern-Microfluidic Chip Experiment

查看全文 作　　者：Zheng [1]Xianglei;Jang [2]Jaewon

机构地区：[1]Municipal Testing Laboratory,New York, USA;[2]Department of Civil and Environmental Engineering, Hanyang University

出　　处：《China Petroleum Processing & Petrochemical Technology》索引2019年第21卷第1期,共10页

基　　金：supported by the research fund of the Korea Agency for Infrastructure Technology Advancement(19CTAP-C142849-02) 摘　　要：Immiscible fluid flow is frequently found in resource recovery or soil remediation. The flow pattern in the porous media is affected by the wettability of pore surface. In this study, quartz substrates and microfluidic chips are treated by silica nanoparticles(SNP) and triethoxy(octyl)silane(TES) to fabricate the water-wet and oil-wet surfaces. The wettability of the treated-surface is measured in term of contact angle for several combinations of surrounding fluid and a liquid droplet. The effect of the wettability on the fluid flow pattern is explored by injecting oil and water alternately into the surface-treated microfluidic chips. The results reveal that the SNP-coated quartz substrate shows strong water-wet property and the TES coating makes water-repellent/oil-wet surfaces. In addition, it is found that the maximum and minimum oil and water saturation during alternate injection of oil and water depends on the surface wettability of the microfluidic chips. The characteristics of the pore-scale fluid flow pattern are also described. 关键词：WETTABILITY contact angle nanoparticle coating HYDROPHILIC HYDROPHOBIC microfluidic chip

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Impacts of Wettability on Immiscible Fluid Flow Pattern-Microfluidic Chip Experiment

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