持久的一维液体注入表面用于实际滴状冷凝增强

IF 3.9 2区 化学 Q2 CHEMISTRY, MULTIDISCIPLINARY
Seyed Ahmadreza Kia, Hossein Pakzad, Behzad Rezaee and Ali Moosavi*, 
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引用次数: 0

摘要

适当的接触角(CA)和接触角滞后(CAH)使注入液体表面(LISs)成为有希望的凝聚增强材料。然而,它们的实际应用遇到了耐久性低、不可扩展性和高成本等问题的限制。在这项研究中,用不同粘度的硅油和十甲基环五硅氧烷(D5)覆盖铝,将其暴露在紫外线(UV)光下两个不同的时间,以生产耐用且低成本的一维LIS,而不使用有害材料。对于短期暴露,使用10小时的辐射,而长期暴露取决于润滑剂的凝胶化时间。试验表明,所有润滑油均与基材发生化学吸附,CA值为100°,CAH值低于10°。此外,与裸铝相比,制备的样品可以将腐蚀电流密度降低2个数量级。冷凝测试表明,表面覆盖5 cSt硅油,在紫外线下暴露10小时,在过冷温度为14.5,10和5.5 K时,与裸铝相比,冷凝水分别提高了29%,38%和39%。此外,与文献相比,制造的LIS的耐久性提高了350%。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Durable One-Dimensional Liquid-Infused Surface for Practical Dropwise Condensation Enhancement

Durable One-Dimensional Liquid-Infused Surface for Practical Dropwise Condensation Enhancement

Suitable contact angle (CA) and contact angle hysteresis (CAH) of liquid-infused surfaces (LISs) make them promising candidates for condensation enhancement. However, their practical application encounters restrictions arising from issues such as low durability, unscalability, and high cost. In this study, aluminum covered with silicone oils of various viscosities and decamethylcyclopentasiloxane (D5) is exposed to ultraviolet (UV) light for two different periods to produce a durable, yet low-cost, 1-D LIS without the use of hazardous materials. For short-term exposure, 10 h of radiation is utilized, whereas long-term exposure depends on the gelation time of the lubricants. Tests reveal that all lubricants are chemically attached to the substrate, possessing a CA of >100° and CAH of lower than 10°. Furthermore, the fabricated samples can reduce the corrosion current density by up to 2 orders of magnitude with respect to bare aluminum. The condensation test reveals that the surface, covered with 5 cSt silicone oil that is exposed to UV light for 10 h, enhances the condensed water by 29%, 38%, and 39% at subcooling temperatures of 14.5, 10, and 5.5 K compared to bare aluminum, respectively. Additionally, compared with the literature, the durability of the fabricated LIS is improved by 350%.

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来源期刊
Langmuir
Langmuir 化学-材料科学:综合
CiteScore
6.50
自引率
10.30%
发文量
1464
审稿时长
2.1 months
期刊介绍: Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).
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