Immiscible Two-Phase Parallel Microflow and Its Applications in Fabricating Micro- and Nanomaterials

Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials Pub Date : 1900-01-01 DOI:10.4018/978-1-5225-7138-4.CH005

Yujie Li, Jie Wang, Shijie Wang, D. Li, Shanshan Song, Peng Zhang, Jianguo Li, Hai Yuan

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Abstract

The immiscible two-phase flow behaves nonlinearly, and it is a challenging task to control and stabilize the liquid-liquid interface. Parallel flow forms under a proper balance between the driving force, the friction resistance, and the interfacial tension. The liquid-solid interaction as well as the liquid-liquid interaction plays an important role in manipulating the liquid-liquid interface. With vacuum-driven flow, long and stable parallel flow is possible to be obtained in oil-water systems and can be used for fabricating micro- and nanomaterials. Ultra-small Cu nanoparticles of 4~10 nm were synthesized continuously through chemical reactions taking place on the interface. This makes it possible for in situ synthesis of conductive nanoink avoiding oxidation. Well-controlled interface reactions can also be used to produce ultra-long sub-micro Cu wires up to 10 mm at room temperature. This method provided new and simple additive fabrication methods for making integrated microfluidic devices.

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非混相两相平行微流及其在微纳米材料制造中的应用

非混相两相流具有非线性特性，控制和稳定液-液界面是一项具有挑战性的任务。在驱动力、摩擦阻力和界面张力之间的适当平衡下形成平行流动。液-固相互作用和液-液相互作用在控制液-液界面中起着重要作用。利用真空驱动流动，可以在油水系统中获得长时间稳定的平行流动，并可用于制造微纳米材料。通过在界面上进行化学反应，连续合成了4~10 nm的超小铜纳米颗粒。这使得原位合成导电纳米油墨避免氧化成为可能。控制良好的界面反应也可用于在室温下生产长达10毫米的超长亚微铜线。该方法为集成微流控器件的制备提供了新的、简单的增材制造方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials

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