The ability of a fabric to restore its superhydrophobicity after damage is utilized to prepare highly durable fabrics for oil/water separation. A physical self‐healing concept is a conventional way to improve durability. However, this method cannot recover the oil/water separation performance when serious damage appears. In this work, a chemical self‐healing concept to solve the above problem is proposed. Self‐healable silicon rubber (SR), which is cross‐linked by cobalt‐based coordination bonds, is coated on silica@polyethylene terephthalate (PET) fabrics. The modified fabric exhibits superhydrophobic characteristics with a contact angle of 158°, high oil/water separation efficiency (≈99%), and high durability. After damage, these modified fabrics enable fast self‐healing at room temperature (in just 10 min) and maintain their oil/water separation efficiency above 98%. For conventional SR‐modified silica@PET fabrics, their superhydrophobicity and oil/water separation efficiency significantly decreases under identical damaging. Thus, this study provides a new path for the development of various room‐temperature self‐healable superhydrophobic fabrics.

中文翻译：

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化学自修复策略制备超疏水织物及其高油水分离性能和增强的耐久性

利用织物在损坏后恢复其超疏水性的​​能力来制备用于油/水分离的高度耐用的织物。物理自我修复概念是提高耐用性的常规方法。但是，这种方法在出现严重损坏时无法恢复油/水分离性能。在这项工作中，提出了一种化学自愈概念来解决上述问题。通过基于钴的配位键交联的可自我修复的硅橡胶（SR）涂覆在二氧化硅@聚对苯二甲酸乙二酯（PET）织物上。改性织物具有超疏水特性，接触角为158°，具有很高的油/水分离效率（≈99％），并且具有很高的耐久性。损坏后 这些改性织物可在室温下（仅10分钟内）实现快速自我修复，并保持其油/水分离效率在98％以上。对于常规的SR改性二氧化硅@PET织物，在相同的破坏作用下，它们的超疏水性和油/水分离效率会大大降低。因此，本研究为开发各种室温自修复超疏水性织物提供了一条新途径。