Accelerating the healing of superhydrophobicity through photothermogenesis

Liu, Yanhua; Pei, Xiaowei; Liu, Zhilu; Yu, Bo; Yan, Pengxun; Zhou, Feng

doi:10.1039/c5ta04252f

Cited by 46 publications

(21 citation statements)

References 24 publications

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“…Octadecylamine (ODA) is well known as a low surface energy material and has been widely used to fabricate self-healing superhydrophobic surfaces based on the migration of ODA molecules 55 56 57 58 . Unexpectedly, when ODA was employed as a low energy material to prepare superhydrophobic surfaces, something interesting happens during our experiments.…”

mentioning

confidence: 99%

Robust, Self-Healing Superhydrophobic Fabrics Prepared by One-Step Coating of PDMS and Octadecylamine

Xue

Bai

She

2016

Sci Rep

176

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A robust, self-healing superhydrophobic poly(ethylene terephthalate) (PET) fabric was fabricated by a convenient solution-dipping method using an easily available material system consisting of polydimethylsiloxane and octadecylamine (ODA). The surface roughness was formed by self-roughening of ODA coating on PET fibers without any lithography steps or adding any nanomaterials. The fabric coating was durable to withstand 120 cycles of laundry and 5000 cycles of abrasion without apparently changing the superhydrophobicity. More interestingly, the fabric can restore its super liquid-repellent property by 72 h at room temperature even after 20000 cycles of abrasion. Meanwhile, after being damaged chemically, the fabric can restore its superhydrophobicity automatically in 12 h at room temperature or by a short-time heating treatment. We envision that this simple but effective coating system may lead to the development of robust protective clothing for various applications.

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mentioning

confidence: 99%

Robust, Self-Healing Superhydrophobic Fabrics Prepared by One-Step Coating of PDMS and Octadecylamine

Xue

Bai

She

2016

Sci Rep

176

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“…Apart from heating triggered self‐healing, some other treatments can also trigger the self‐healing process, such as steam ironing, near‐infrared (NIR) light, mechanical force, and even humidity . After plasma etching, a fabric coated with a trilayer of branched poly(ethylenimine) (PEI), ammonium polyphosphate (APP), a F‐POSS can restore its superhydrophobicity in an environment with a relative humidity (RH) of ≈35% in ≈1 h .…”

Section: Durability and General Improvement Strategiesmentioning

confidence: 99%

“…Another type of self‐healing is the encapsulation of liquid‐repellent agents and the subsequent release upon mechanical forces . The mechanically induced self‐healing superhydrophobic was realized by coating the fabrics with polydopamine nanocapsule‐encapsulated hydrophobic agents such as octadecylamine and octadecanethiol .…”

Section: Durability and General Improvement Strategiesmentioning

confidence: 99%

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Recent Development in Durable Super‐Liquid‐Repellent Fabrics

Zhou

Zhao

Wang

et al. 2016

Adv Materials Inter

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Super‐liquid‐repellent fabrics have attracted considerable interest owing to their fundamental importance and complexity and application potential in many fields. Despite the fact that a significant progress has been made to develop super‐liquid‐repellent fabrics, durability has been the main obstacle to their wide use in practice. In this progress report, the authors summarize the research progress in the developments of durable super‐liquid‐repellent fabrics, especially for the works published since 2006. The report focuses on fabrication strategies to improve the functional durability, evaluation approaches, and the quality level of the existing super‐liquid‐repellent fabrics. Challenges for further development of high quality, super‐liquid‐repellent fabrics in terms of practical application are highlighted.

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“…For example, inorganic/organic micro-/nanocontainers have been used in superhydrophobic coatings for storing low-surface-energy materials [18][19][20][21] . Physical damage to the coating surfaces autonomously triggered the release and migration of these low-surface-energy materials from the containers to the coating surface, causing the repair of the surface chemistry.…”

Section: Introductionmentioning

confidence: 99%

Dual-action smart coatings with a self-healing superhydrophobic surface and anti-corrosion properties

et al. 2017

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Important noteTo cite this publication, please use the final published version (if applicable). Please check the document version above. CopyrightOther than for strictly personal use, it is not permitted to download, forward or distribute the text or part of it, without the consent of the author(s) and/or copyright holder(s), unless the work is under an open content license such as Creative Commons. Takedown policyPlease contact us and provide details if you believe this document breaches copyrights. We will remove access to the work immediately and investigate your claim. AbstractThis work introduces a new self-healing superhydrophobic coating based on dual actions by the corrosion inhibitor benzotriazole (BTA) and an epoxy-based shape memory polymer (SMP). Damage to the surface morphology (e.g., crushed areas and scratches) and the corresponding superhydrophobicity is shown to be rapidly healed through a simple heat treatment at 60 °C for 20 min. Electrochemical impedance spectroscopy (EIS) and scanning electrochemical microscopy (SECM) were used to study the anti-corrosion performance of the scratched and the healed superhydrophobic coatings immersed in a 3.5 wt% NaCl solution. The results revealed that the anti-corrosion performance of the scratched coatings was improved upon the incorporation of BTA. After the heat treatment, the scratched superhydrophobic coatings exhibited excellent recovery of the anti-corrosion performance, which is attributed to the closure of the scratch by the shape memory effect and to the improved inhibition efficiency of BTA. Furthermore, we found that the pre-existing corrosion product inside the coating scratch could hinder the scratch closure by the shape memory effect and reduce the coating adhesion in the scratched region. However, the addition of BTA effectively suppressed the formation of corrosion product and enhanced the self-healing and adhesion performance under this condition. Importantly, we also demonstrated that the coating can be autonomously healed within 1 h in an outdoor environment using sunlight as the heat source.

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Accelerating the healing of superhydrophobicity through photothermogenesis

Cited by 46 publications

References 24 publications

Robust, Self-Healing Superhydrophobic Fabrics Prepared by One-Step Coating of PDMS and Octadecylamine

Robust, Self-Healing Superhydrophobic Fabrics Prepared by One-Step Coating of PDMS and Octadecylamine

Recent Development in Durable Super‐Liquid‐Repellent Fabrics

Dual-action smart coatings with a self-healing superhydrophobic surface and anti-corrosion properties

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