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Functionalized Coatings with Super-Wetting, Intelligent Adhesion and Regulable Boundary Slip

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A special issue of Coatings (ISSN 2079-6412). This special issue belongs to the section "Surface Characterization, Deposition and Modification".

Deadline for manuscript submissions: closed (31 October 2021) | Viewed by 10186

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Special Issue Editor

Prof. Dr. Feng Zhou

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Guest Editor

Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China
Interests: soft matter; lubrication; wetting; adhesion

Special Issue Information

Dear Colleagues,

Over the years, different interface phenomena have been investigated, especially for super-wettability, adhesion/anti-adhesion, and lubrication/boundary slip. Among them, combining the interface chemistry and well-defined topography, extensive efforts have been made to reveal the key factors influencing interface wetting, adhesion, and slip ranging from solid–solid interfaces, solid–liquid interfaces, and liquid–liquid interfaces to solid–liquid–air multiphase interfaces. However, the interaction mechanism among interface wetting, dynamic adhesion, and boundary slip/lubrication characteristics has yet to receive the necessary attention. Driven by the state-of-the-art research advancements in experimental, theoretical, and modeling activities, the development of surface/interface performance in terms of coating viewpoints is expected for durability engineering applications. As one of the mostly highly exploited research scopes in the field of interface science and engineering, an in-depth study of the coupling effects of these typical interfacial phenomena and a renewed impetus towards relevant molecular engineered coating techniques has seen a huge increase in demand.

This Special Issue will serve as a forum for papers on the following concepts:

Theoretical and experimental investigation, knowledge and novel discoveries on the interaction laws of interface wetting, adhesion phenomena, and boundary slip/lubrication, including but not limit to interface wetting/dewetting, normal adhesion/anti-adhesion, tangential friction/lubrication and slip.

Comprehensive understanding of the coupling mechanisms among wetting, adhesion, and slip/lubrication through directional liquid dynamics of interface with super-wettability, tailorable adhesion/antiadhesion upon hydration/dehydration, slip/lubrication with a special super-wettable interface, and other more complex conditions.

The latest developments in regulation methods considering the interplay between wetting/dewetting, adhesion/antiadhesion, and lubrication/wear, and the ability to predict field performance.

Computer modeling and simulation to predict interface properties, coupling mechanisms, and reliability in coating preparation, with a focus on interface dynamic regulation of wetting, adhesion, and friction.

Recent developments in multi-functional coatings produced by general and advanced manufacturing techniques, with an emphasis on coatings’ wetting, adhesion, lubrication, boundary slip, and reliability in service environments.

Prof. Dr. Feng Zhou
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Coatings is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

wetting and adhesion
wetting and slip
contact and lubrication
interface performance regulation
functionalized coatings

Published Papers (3 papers)

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Research

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17 pages, 5785 KiB

Open AccessArticle

Imparting Strong Antifouling Properties to the Transparent PVB Coating through the Zwitterionic Compound Condensation

by Jianbin Zhang, Shangshang Bo, Haiyan Feng, Bo Yu, Qiangliang Yu, Wufang Yang, Xiaowei Pei and Feng Zhou

Coatings 2021, 11(10), 1164; https://0-doi-org.brum.beds.ac.uk/10.3390/coatings11101164 - 27 Sep 2021

Cited by 3 | Viewed by 2982

Abstract

Fouling is a ubiquitous and longstanding challenge that causes both economic and environmental problems, especially for underwater detection equipment, as fouling directly limits the normal services and functions of such equipment. Therefore, it is necessary to develop coatings with high transparency and good antifouling performance. Herein, a novel zwitterion compound was synthesized, and an antifouling coating with excellent comprehensive properties was prepared by integrating 3-[[3-(triethoxysilyl)-propyl] amino] propane-1-sulfonic acid (TPAPS) into polyvinyl butyral (PVB) polymer, which possesses excellent mechanical properties and transparency. The physical and chemical, mechanical, and antifouling properties, and the light transmittance of the coating were characterized by the SEM, FT-IR, XPS, UV-VIS. The results show that the coating had good mechanical properties and adhesion to the substrate, and the strong hydration ability of TPAPS endowed the coating with excellent resistance to oil stains and biofouling. More importantly, the structure of the coating was homogenous and its surface roughness was very little, which imparted the coating with high transmittance. This research provides a facile approach for synthesizing high-transparency materials with excellent antifouling and mechanical properties. Full article

(This article belongs to the Special Issue Functionalized Coatings with Super-Wetting, Intelligent Adhesion and Regulable Boundary Slip)

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8 pages, 2147 KiB

Open AccessArticle

Multidimensional Aligned Nanowires Array: Toward Bendable and Stretchable Strain Sensors

by Lili Meng, Jingchao Zhu, Ruixin Bian, Bojie Xu, Zhongxue Tang, Yu Zhang and Huan Liu

Coatings 2021, 11(8), 975; https://0-doi-org.brum.beds.ac.uk/10.3390/coatings11080975 - 16 Aug 2021

Cited by 2 | Viewed by 2043

Abstract

Micropatterns based on the oriented nanowires have attracted research interests for their unique physicochemical advantages in various applications of electric microdevices. Here, we proposed a facile fibrous dewetting strategy by spreading and dewetting of the silver nanowire (AgNW) solution on the vertical aligned carbon nanotube array (ACNTs) for preparing multidimensional aligned nanowires array, based on the elastocapillary coalescence. The unidirectional shrinking of the liquid film on the top of ACNTs happens during the dewetting process, as a result of the elastocapillary coalescence of ACNTs, which drives the AgNWs aligned along normal direction of liquid film shrinkage on the top of ACNTs. Thus, a multidimensional aligned NWs array was prepared, composing of the horizontally oriented NWs of top layer and vertical ACNT bundles of under layer connected by CNT yarns. A bendable flexible electrode was prepared using the as-prepared multidimensional aligned nanowires array, showing high stability during bending cycles (1800 cycles). Moreover, the multidimensional aligned nanowires array is also applicable for fabricating strain sensors, which show stable resistance response under strain. We envision that the as-developed approach shed new light on easy manufacture NW-based micropatterns. Full article

(This article belongs to the Special Issue Functionalized Coatings with Super-Wetting, Intelligent Adhesion and Regulable Boundary Slip)

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Review

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24 pages, 2671 KiB

Open AccessReview

Sustainable Materials for Liquid Repellent Coatings

by Francesca Cirisano and Michele Ferrari

Coatings 2021, 11(12), 1508; https://0-doi-org.brum.beds.ac.uk/10.3390/coatings11121508 - 7 Dec 2021

Cited by 5 | Viewed by 4574

Abstract

A modern environmental safety approach requires the implementation of green or sustainable strategies, such as banning or significantly lowering the presence of harmful substances on the market or in the industrial environment. To date, the majority of highly performing solutions are still based on fluorine chemistry, even with a growing effort to lower its impact. Economic costs, but also persistence, long-term degradation, and transformation in the environment can raise issues about medium- and long-term effects on human health and wildlife. Coatings with high water and oil repellence are used worldwide in daily life and in industrial and research fields, such as self-cleansing, anti-icing, and anti-biofouling. The combination of a particular geometry or surface structure and low-energy materials results in unique properties related to a range of materials in natural or synthetic categories aiming to build, when possible, a fluorine-free world. This work revises recent and key literature to propose valid alternatives to fluoro compounds in terms of water and oil repellence, as well as stability and resistance to physico-chemical agents. In this paper, natural compounds like fatty acids and waxes are addressed together with more synthetic systems like silicon-based solutions, and polymeric and inorganic nanostructured coatings. Most of the revised papers deal with topics fulfilling environmental requirements but are mainly restricted to highly repellent water and aqueous systems. Nevertheless, new and sustainable strategies for providing suitable, highly oleophobic surfaces to lower fluorine presence have been reported from a small but growing body of literature. Full article

(This article belongs to the Special Issue Functionalized Coatings with Super-Wetting, Intelligent Adhesion and Regulable Boundary Slip)

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