How to Select Phase Change Materials for Tuning Condensation and Frosting?
How to Select Phase Change Materials for Tuning Condensation and Frosting?
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如何选择调谐冷凝结霜的相变材料？
DOI：
10.1002/adfm.202206301
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发表时间：
2022-11
影响因子：
19
通讯作者：
Rukmava Chatterjee;Umesh V. Chaudhari;S. Anand
中科院分区：
文献类型：
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作者：
Rukmava Chatterjee;Umesh V. Chaudhari;S. Anand
合成表面设计用于调节物质的相变并控制其不期望的应计量（液体或固体），在各种工业应用中发挥关键作用。多年来，驱虫剂表面的设计已经从仅仅改变表面纹理和化学转变为识别新的材料系统。在本研究中，我们建立了选择标准，从广泛的植物基/有机/精油库中识别生物友好型相变材料（pcm），这些材料可以通过利用冷凝过程中释放的潜热来进行热响应，从而延缓极寒环境中不利于其功能的冰/霜的形成。同时，本文还研究了凝结过程中微观尺度的热传递现象与由此产生的宏观效应（如延迟液滴冻结）之间的关系，并将其作为固化pcm固有热力学性能的函数。此外，为了防冻，许多对表面热反射有响应的特性是可以实现的，例如动态调节光学透明度的能力、水分收集、冰脱落和快速的现场可修复性，从而开发出能够跨越广泛功能的保护涂层，从而比传统解决方案具有独特的优势。
Synthetic surfaces engineered to regulate phase transitions of matter and exercise control over its undesired accrual (liquid or solid) play a pivotal role in diverse industrial applications. Over the years, the design of repellant surfaces has transitioned from solely modifying the surface texture and chemistry to identifying novel material systems. In this study, selection criteria are established to identify bio‐friendly phase change materials (PCMs) from an extensive library of vegetable‐based/organic/essential oils that can thermally respond by harnessing the latent heat released during condensation and thereby delaying ice/frost formation in the very frigid ambient that is detrimental to its functionality. Concurrently, a comprehensive investigation is conducted to elucidate the relation between microscale heat transport phenomena during condensation and the resulting macroscopic effects (e.g., delayed droplet freezing) on various solidified PCMs as a function of their inherent thermo‐mechanical properties. In addition, to freeze protection, many properties that are responsive to the thermal reflex of the surface, such as the ability to dynamically tune optical transparency, moisture harvesting, ice shedding, and quick in‐field repairability, are achievable, resulting in the development of protective coatings capable of spanning a wide range of functionalities and thereby having a distinctive edge over conventional solutions.