Biomimetic lubricant-grafted surfaces on laser-textured microwell arrays with multifunctionality

IF 6.3 1区 工程技术 Q1 ENGINEERING, MECHANICAL
Friction Pub Date : 2024-06-25 DOI:10.1007/s40544-024-0906-3
Xiaorui Song, Zhiqiang Hou, Zhehao Gan, Yuyao Hu, Hongyu Zheng, Yongling Wu, Mingming Liu
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Abstract

Recently, various slippery liquid-infused porous surfaces (SLIPS) have been fabricated for the protection of various materials. However, these SLIPSs are limited by their underlying storage structure and superficial lubricant layer, showing poor durability. Herein, inspired by the high-strength structure of Shell nacre’s “brick-mud” layer, we fabricated an all-inorganic composite coating by using wet chemically etched MXene as a brick and an aluminum phosphate binder (AP) as mud. Then, a series of microwell-array structures were designed and prepared on the coating via nanosecond ultrafast laser writing ablation technology. Subsequently, the textured surface was modified by a silane coupling agent. Vinyl-terminated polydimethylsiloxane (PDMS) was tightly grafted onto the porous surface through a thiol-ene click reaction to obtain lubricant grafted texture surface (LGTS). The prepared LGTS showed good lubrication properties for multiple phases, including various liquids, ice crystals, and solids. It exhibits excellent chemical stability and mechanical durability under deionized water impact, centrifugal test, strong acid solutions, anti/de-icing cycles, and high-intensity friction. Thus, the proposed strategy for constructing robust LGTS will greatly promote theoretical research on super wetting interfacial materials and their applications in the fields of antifouling, anti/de-icing, and lubricating protection.

Abstract Image

具有多功能性的激光纹理微孔阵列上的仿生润滑剂接枝表面
最近,人们制造出了各种注入液体的多孔滑面(SLIPS),用于保护各种材料。然而,这些 SLIPS 受限于其底层存储结构和表层润滑层,耐久性较差。在此,我们受到贝壳珍珠 "砖-泥 "层高强度结构的启发,以湿化学蚀刻 MXene 为砖,磷酸铝粘合剂(AP)为泥,制作了一种全无机复合涂层。然后,通过纳秒级超快激光写入烧蚀技术在涂层上设计和制备了一系列微椭球阵列结构。随后,硅烷偶联剂对纹理表面进行改性。通过硫醇-烯点击反应,乙烯基封端聚二甲基硅氧烷(PDMS)被紧密接枝到多孔表面,从而获得润滑剂接枝纹理表面(LGTS)。所制备的 LGTS 对包括各种液体、冰晶和固体在内的多相具有良好的润滑性能。它在去离子水冲击、离心试验、强酸溶液、防/除冰循环和高强度摩擦下均表现出优异的化学稳定性和机械耐久性。因此,所提出的构建坚固 LGTS 的策略将极大地促进超润湿界面材料的理论研究及其在防污、防/除冰和润滑保护领域的应用。
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来源期刊
Friction
Friction Engineering-Mechanical Engineering
CiteScore
12.90
自引率
13.20%
发文量
324
审稿时长
13 weeks
期刊介绍: Friction is a peer-reviewed international journal for the publication of theoretical and experimental research works related to the friction, lubrication and wear. Original, high quality research papers and review articles on all aspects of tribology are welcome, including, but are not limited to, a variety of topics, such as: Friction: Origin of friction, Friction theories, New phenomena of friction, Nano-friction, Ultra-low friction, Molecular friction, Ultra-high friction, Friction at high speed, Friction at high temperature or low temperature, Friction at solid/liquid interfaces, Bio-friction, Adhesion, etc. Lubrication: Superlubricity, Green lubricants, Nano-lubrication, Boundary lubrication, Thin film lubrication, Elastohydrodynamic lubrication, Mixed lubrication, New lubricants, New additives, Gas lubrication, Solid lubrication, etc. Wear: Wear materials, Wear mechanism, Wear models, Wear in severe conditions, Wear measurement, Wear monitoring, etc. Surface Engineering: Surface texturing, Molecular films, Surface coatings, Surface modification, Bionic surfaces, etc. Basic Sciences: Tribology system, Principles of tribology, Thermodynamics of tribo-systems, Micro-fluidics, Thermal stability of tribo-systems, etc. Friction is an open access journal. It is published quarterly by Tsinghua University Press and Springer, and sponsored by the State Key Laboratory of Tribology (TsinghuaUniversity) and the Tribology Institute of Chinese Mechanical Engineering Society.
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