Rapid and Repeatable Self‐Healing Superoleophobic Porous Aluminum Surface Using Infiltrated Liquid Healing Agent,Advanced Materials Interfaces

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Rapid and Repeatable Self‐Healing Superoleophobic Porous Aluminum Surface Using Infiltrated Liquid Healing Agent
Advanced Materials Interfaces ( IF 4.3 ) Pub Date : 2018-07-15 , DOI: 10.1002/admi.201800566
Katsutoshi Nakayama ₁ , Akira Koyama ₁ , Chunyu Zhu ₁ , Yoshitaka Aoki ₁ , Hiroki Habazaki ₁

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This paper reports rapid self‐healing on superoleophobic hierarchically porous aluminum surfaces within 1 h even at room temperature. This self‐healing surface is prepared by infiltration of a liquid fluoroalkylsilane (FAS) coating into the substrate pores. The FAS‐infiltrated dual‐pore superoleophobic surface becomes superoleophilic after oxygen plasma treatment due to the damage done to the organic coating. However, the superoleophobicity is completely recovered by exposure to normal atmosphere at room temperature, and this rapid self‐healing is repeatable. The FAS liquid appears to coat the nanopore walls, rather than filling the nanopores. The high wettability of FAS on surfaces induces the rapid recoating of the plasma‐damaged surface, contributing to the self‐healing of the superoleophobicity.

中文翻译：

使用渗透性液体修复剂快速且可重复的自修复超疏油多孔铝表面

本文报道了即使在室温下，也能在1小时内在超疏油的分层多孔铝表面上实现快速自修复。该自我修复表面是通过将液态氟代烷基硅烷（FAS）涂层渗透到基材孔中而制成的。由于对有机涂层的破坏，经过氧等离子体处理后，FAS渗透的双孔超疏油表面变得具有超亲油性。但是，超疏油性可通过在室温下暴露于正常大气中而完全恢复，并且这种快速的自我修复是可重复的。FAS液体似乎覆盖了纳米孔壁，而不是填充了纳米孔。FAS在表面上的高润湿性可导致等离子受损表面的快速重涂，从而有助于超疏油性的自我修复。

更新日期：2018-07-15

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