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Fabrics coated with lubricated nanostructures display robust omniphobicity

机译：涂有润滑纳米结构的织物表现出强大的憎油性

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摘要

The development of a stain-resistant and pressure-stable textile is desirable for consumer and industrial applications alike, yet it remains a challenge that current technologies have been unable to fully address. Traditional superhydrophobic surfaces, inspired by the lotus plant, are characterized by two main components: hydrophobic chemical functionalization and surface roughness. While this approach produces water-resistant surfaces, these materials have critical weaknesses that hinder their practical utility, in particular as robust stain-free fabrics. For example, traditional superhydrophobic surfaces fail (i.e., become stained) when exposed to low-surface-tension liquids, under pressure when impacted by a high-velocity stream of water (e.g., rain), and when exposed to physical forces such as abrasion and twisting. We have recently introduced slippery lubricant-infused porous surfaces (SLIPS), a self-healing, pressure-tolerant and omniphobic surface, to address these issues. Herein we present the rational design and optimization of nanostructured lubricant-infused fabrics and demonstrate markedly improved performance over traditional superhydrophobic textile treatments: SLIPS-functionalized cotton and polyester fabrics exhibit decreased contact angle hysteresis and sliding angles, omni-repellent properties against various fluids including polar and nonpolar liquids, pressure tolerance and mechanical robustness, all of which are not readily achievable with the state-of-the-art superhydrophobic coatings.
机译：耐污且耐压的纺织品的开发对于消费者和工业应用都是期望的，但是仍然是当前技术无法完全解决的挑战。受荷花植物启发的传统超疏水表面具有两个主要成分：疏水化学功能化和表面粗糙度。尽管这种方法可以产生防水表面，但是这些材料具有严重的弱点，阻碍了它们的实用性，特别是作为坚固的无污渍织物。例如，传统的超疏水表面在暴露于低表面张力的液体时，在高压水流（例如雨水）的冲击下以及在物理力（例如磨蚀）下的压力下会失效（即变色）。和扭曲。我们最近推出了光滑的注入润滑剂的多孔表面（SLIPS），该表面具有自修复，耐压和憎油性，可以解决这些问题。在这里，我们介绍了合理设计和优化的纳米结构润滑剂注入织物，并证明了其性能优于传统的超疏水纺织品处理：SLIPS功能化的棉和聚酯织物表现出降低的接触角滞后性和滑动角，对包括极性在内的各种流体均具有全拒性以及非极性液体，耐压性和机械坚固性，所有这些都无法通过最新的超疏水性涂料轻松实现。

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