Facile, scalable and Substrate-Independent omniphobic surface

IF 6.3 2区材料科学 Q2 CHEMISTRY, PHYSICAL

Applied Surface Science Pub Date : 2024-11-06 DOI:10.1016/j.apsusc.2024.161726

Jun Ma, Chen Zhang, William S. Y. Wong, Jinlong Song

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Abstract

Omniphobic surfaces have a very wide range of applications. However, limited by substrate material and/or fabrication processes, scalable synthesis of robust omniphobic surfaces with universality and versatility remains challenging for both academia and industry. Here, we present a facile and scalable slippery omniphobic surface (FSSOS) based on the straightforward blending and dip/spray-coating of polysilazane (PSZ) and minute low surface energy silane under room temperature. Water shows a contact angle hysteresis (CAH) of 18°, and the overall trend across all tested solvents suggests a relatively low CAH (＜10°), further enhancing its surface omniphobicity. The one-step synthesis protocol is cost-effective, substrate-independent, and does not require curing aids such as UV irradiation or heat. The FSSOS achieves multi-liquid omni-repellency with chemical and mechanical durability under various harsh exposure conditions. The CAH remains stable even after exposure to 4 m/s water jet impact for 8 h, 130 W ultrasonic vibration for 250 min, 10 kPa pressure tape-peel test for 250 cycles, heating at 250 °C for 10 min, and 205 mW/cm² UV irradiation for 28 days. This approach highlights a functional design of liquid-repellent surfaces for numerous real-world applications.

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简便、可扩展且与基底无关的全疏表面

全憎表面具有非常广泛的应用。然而，由于受到基底材料和/或制造工艺的限制，可扩展地合成具有通用性和多功能性的坚固全疏表面对于学术界和工业界来说仍然具有挑战性。在此，我们提出了一种简便、可扩展的滑爽全疏表面（FSSOS），它是在室温下将聚硅氧烷（PSZ）和微量低表面能硅烷直接混合并进行浸涂/喷涂而得到的。水的接触角滞后（CAH）为 18°，而所有测试溶剂的总体趋势表明其接触角滞后相对较低（＜10°），从而进一步增强了其表面疏水性。一步法合成方案具有成本效益，与基底无关，而且不需要紫外线照射或加热等固化辅助工具。FSSOS 实现了多液体全憎性，并在各种苛刻的暴露条件下具有化学和机械耐久性。即使在 4 米/秒水柱冲击 8 小时、130 W 超声波振动 250 分钟、10 kPa 压力胶带剥离测试 250 次、250 °C 加热 10 分钟和 205 mW/cm2 紫外线照射 28 天后，CAH 仍能保持稳定。这种方法突出了憎液表面的功能设计，适用于多种实际应用。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Surface Science 工程技术-材料科学：膜

CiteScore

12.50

自引率

7.50%

发文量

3393

审稿时长

67 days

期刊介绍： Applied Surface Science covers topics contributing to a better understanding of surfaces, interfaces, nanostructures and their applications. The journal is concerned with scientific research on the atomic and molecular level of material properties determined with specific surface analytical techniques and/or computational methods, as well as the processing of such structures.