化学定制水下超疏油涂层的机械性能和光学透明度,Advanced Functional Materials

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化学定制水下超疏油涂层的机械性能和光学透明度
Advanced Functional Materials ( IF 18.5 ) Pub Date : 2023-04-28 , DOI: 10.1002/adfm.202302569
Angana Borbora ₁ , Manideepa Dhar ₁ , Arpita Shome ₁ , Nishanta Barman ₁ , Swaraj Roy ₁ , Uttam Manna _{1,

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Affiliation

仿生水下超疏油性固有的防止水下油污/油污的能力使其适用于与环境修复、生物粘附、微流体、化学传感等相关的广泛应用；然而，机械耐久性和光学透明度的共同结合对于实际性能至关重要。虽然机械耐用且绝对光学透明的水下超疏油涂层的设计仍然具有挑战性，但这里通过 1,4-共轭加成反应引入了共价交联和化学反应性溶胶-凝胶转化过程，以实现不依赖于基材的耐受涂层用于正交调节水下油润湿性、光学透明度，甚至高度可变形多孔和纤维基材的机械性能。所制备的涂层中残余化学反应性的后改性允许嵌入水下超疏油性，并且β-氨基酯交联改善了选定的可变形基材的机械性能。此外，即使在实际相关的恶劣化学水生条件（包括极端 pH 值、人造海水、表面活性剂污染的水等）中长时间（30 天）暴露后，它也表现出不受干扰的性能。该方法已成功应用于涂覆各种基材，包括多孔、纤维和平面物体，它将有助于保护各种相关的海洋基础设施免受油/油污垢的影响，以及各种其他潜在的应用。β-氨基酯交联改善了所选可变形基材的机械性能。此外，即使在实际相关的恶劣化学水生条件（包括极端 pH 值、人造海水、表面活性剂污染的水等）中长时间（30 天）暴露后，它也表现出不受干扰的性能。该方法已成功应用于涂覆各种基材，包括多孔、纤维和平面物体，它将有助于保护各种相关的海洋基础设施免受油/油污垢的影响，以及各种其他潜在的应用。β-氨基酯交联改善了所选可变形基材的机械性能。此外，即使在实际相关的恶劣化学水生条件（包括极端 pH 值、人造海水、表面活性剂污染的水等）中长时间（30 天）暴露后，它也表现出不受干扰的性能。该方法已成功应用于涂覆各种基材，包括多孔、纤维和平面物体，它将有助于保护各种相关的海洋基础设施免受油/油污垢的影响，以及各种其他潜在的应用。

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Chemically Customizing Mechanical Properties and Optical Transparency in Underwater Superoleophobic Coating

The inherent ability of bio-inspired underwater superoleophobicity to prevent oil/oily fouling underwater makes it appropriate for a wide range of applications related to environmental remediation, bio-adhesion, microfluidics, chemical sensing, etc.; however, the co-association of mechanical durability and optical transparency is essential for realistic performance. While the design of mechanically durable and absolutely optically transparent underwater superoleophobic coating remains challenging, here, a covalently cross-linked and chemically reactive sol-gel conversion process is introduced through 1,4-conjugate addition reaction to achieve a substrate-independent and tolerant coating for orthogonally modulating the underwater oil wettability, optical transparency, and even mechanical properties of highly deformable porous and fibrous substrates. The post-modification of residual chemical reactivity in the prepared coating allows to embed underwater superoleophobicity, and the β-amino-ester-cross-links improve the mechanical property of selected deformable substrates. Moreover, it displayed unperturbed performance even after prolonged (30 days) exposures in practically relevant chemically harsh aquatic conditions—including extremes of pH, artificial seawater, surfactant contaminated water, etc. The approach is successfully applied to coat various substrates—including porous, fibrous, and planar objects, and it would be useful in protecting various relevant marine infrastructures from oil/oily fouling, and various other potential applications.

更新日期：2023-04-28

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