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Self-Lubricative Organic–Inorganic Hybrid Coating with Anti-Icing and Anti-Waxing Performances by Grafting Liquid-Like Polydimethylsiloxane
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2022-05-23 , DOI: 10.1002/admi.202200160 Xiaoqing Hao 1, 2 , Zhengrong Sun 2, 3 , Shuwang Wu 4 , Ta‐Wei Wang 4 , Yubo Liu 2, 3 , Yang Wu 2, 3, 5 , Ximin He 4 , Qinze Liu 1 , Feng Zhou 2
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2022-05-23 , DOI: 10.1002/admi.202200160 Xiaoqing Hao 1, 2 , Zhengrong Sun 2, 3 , Shuwang Wu 4 , Ta‐Wei Wang 4 , Yubo Liu 2, 3 , Yang Wu 2, 3, 5 , Ximin He 4 , Qinze Liu 1 , Feng Zhou 2
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Polydimethylsiloxane (PDMS) is one of the most popular materials to protect infrastructures from the complicated environment due to its chemical stability, nontoxicity, low cost, high durability, and chain flexibility. Herein, a series of organic–inorganic hybrid coatings are prepared by simply grafting loop-like PDMS on a solid surface. Owning to the low surface energy and high mobility of PDMS chains, the special characteristics, including liquid repellency, anti-fouling, self-lubrication, anti- and delay-ice, anti-paraffin, etc., are presented. To confirm the liquid-like slippery nature of PDMS surface, the controlled de-icing and de-waxing tests on rigid chain surfaces are conducted. The liquid-like nature of PDMS allows ice or paraffin to have a low adhesion in a slip state, but a fractured state on alkylated and perfluorinated surface with a high adhesion strength. In addition, the flexible PDMS chains grafted on the inorganic silica layer by stable covalent bond endow the surface with excellent durability, including maintaining low ice adhesion during 50 icing-deicing cycles, resistance to UV irradiation, washing or soaking in organic solvent, etc. This work provides a simple approach for constructing self-lubricative low surface energy coating to realize de-ice and de-wax easily, which may have a broad prospect of application in equipment protection.
中文翻译：
接枝液状聚二甲基硅氧烷的具有防结冰和防蜡性能的自润滑有机-无机杂化涂料
聚二甲基硅氧烷 (PDMS) 因其化学稳定性、无毒、低成本、高耐用性和链灵活性而成为保护基础设施免受复杂环境影响的最受欢迎的材料之一。在此，通过在固体表面上简单地接枝环状 PDMS 制备了一系列有机-无机杂化涂层。由于PDMS链的低表面能和高流动性，呈现出特殊的特性，包括拒液性、防污性、自润滑性、防冰和延迟冰、防石蜡等。为了确认 PDMS 表面的液体状光滑特性，对刚性链表面进行了受控的除冰和脱蜡测试。PDMS 的液体性质使冰或石蜡在滑动状态下具有低粘附性，但在烷基化和全氟化表面上的断裂状态具有高粘合强度。此外，通过稳定的共价键接枝在无机二氧化硅层上的柔性 PDMS 链赋予表面优异的耐久性，包括在 50 次结冰-除冰循环期间保持低冰附着力、抗紫外线照射、耐洗涤或有机溶剂浸泡等。该工作为构建自润滑低表面能涂层提供了一种简便的方法，可以轻松实现除冰和脱蜡，在设备防护方面具有广阔的应用前景。
更新日期：2022-05-23
中文翻译：
接枝液状聚二甲基硅氧烷的具有防结冰和防蜡性能的自润滑有机-无机杂化涂料
聚二甲基硅氧烷 (PDMS) 因其化学稳定性、无毒、低成本、高耐用性和链灵活性而成为保护基础设施免受复杂环境影响的最受欢迎的材料之一。在此，通过在固体表面上简单地接枝环状 PDMS 制备了一系列有机-无机杂化涂层。由于PDMS链的低表面能和高流动性，呈现出特殊的特性，包括拒液性、防污性、自润滑性、防冰和延迟冰、防石蜡等。为了确认 PDMS 表面的液体状光滑特性，对刚性链表面进行了受控的除冰和脱蜡测试。PDMS 的液体性质使冰或石蜡在滑动状态下具有低粘附性，但在烷基化和全氟化表面上的断裂状态具有高粘合强度。此外，通过稳定的共价键接枝在无机二氧化硅层上的柔性 PDMS 链赋予表面优异的耐久性，包括在 50 次结冰-除冰循环期间保持低冰附着力、抗紫外线照射、耐洗涤或有机溶剂浸泡等。该工作为构建自润滑低表面能涂层提供了一种简便的方法，可以轻松实现除冰和脱蜡，在设备防护方面具有广阔的应用前景。
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