Titanium oxide nanoparticle coating of PMMA open flow channels for spontaneous water transport

Titanium oxide nanoparticle coating of PMMA open flow channels for spontaneous water transport
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PMMA 的氧化钛纳米颗粒涂层开放流动通道,用于自发水传输

DOI:
10.1016/j.colsurfa.2022.130265
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发表时间:
2022
期刊:
Colloids and Surfaces A: Physicochemical and Engineering Aspects
影响因子:
--
通讯作者:
Takahiro Yamada
Takahiro Yamada
中科院分区:
--
文献类型:
--
作者:
Yuki Kameya;Takahiro Yamada

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纳米粒子涂层是一种赋予固体表面功能特性的潜在技术。本文研究了二氧化钛(TiO 2)纳米颗粒涂层在聚甲基丙烯酸甲酯(PMMA)开放流动通道中的应用。通过铣削制造宽度为0.5-1 mm的开放流动通道。通过水接触角的测量研究了TiO 2涂层对PMMA表面润湿性的影响。数据显示纳米颗粒涂层适用于方形和圆形流动通道。TiO 2的颗粒浓度影响涂层的均匀性。使用二氧化钛涂层的通道,自发的水流被证明,而裸露的PMMA通道不允许水流动。这里观察到的自发流动条件总结使用广义卡西角。最后,选择性的液体输送的可能性进行了证明,使用平行的TiO 2涂层和未涂层的流动通道源于一个单一的流体入口。这项工作提供了一个潜在的纳米粒子涂层技术,扩大开放的流动通道的应用。
Nanoparticle coating is a potential technique for conferring functional properties to solid surfaces. The application of a titanium oxide (TiO2) nanoparticle coating to polymethyl methacrylate (PMMA) open flow channels was investigated herein. Open flow channels with the widths of 0.5–1 mm were fabricated by milling. The effect of TiO2coating on the wettability of PMMA surface was examined by water contact angle measurements. The data show that nanoparticle coating was applicable to both square and round flow channels. The particle concentration of TiO2affected the evenness of the coating layer. Using TiO2-coated channels, spontaneous water flow was demonstrated, whereas the bare PMMA channel did not allow water flow. The spontaneous flow conditions observed here were summarized using the generalized Cassie angle. Finally, the possibility of selective liquid transport was demonstrated using parallel TiO2-coated and uncoated flow channels stemming from a single fluid inlet. This work offers a potential technique of nanoparticle coating for extending the applications of open flow channels.
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发表时间: 2020
期刊: IOP Conference Series: Earth and Environment
影响因子: --
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影响因子: 7.4
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