A robust transparent and anti-fingerprint superhydrophobic film

Wang, Guiyuan; Wang, Hairen; Guo, Zhiguang

doi:10.1039/c3cc43677b

Cited by 50 publications

(46 citation statements)

References 27 publications

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“…Considering many practical applications, such as clothing, kitchenware, oil pipeline, and so on, antifouling property is of great significance in a wide range of areas . Yuan et al have prepared the superamphiphobic coating with composite ethylene tetrafluoroethylene‐polyaniline functionalized carbon nanotubes.…”

Section: Functional Applicationsmentioning

confidence: 99%

Bioinspired Surfaces with Superamphiphobic Properties: Concepts, Synthesis, and Applications

Liu

Wang

Huang

et al. 2018

Adv Funct Materials

217

136

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Among diverse wetting phenomena in surface science, superamphiphobicity is regarded as one of the most special super-antiwetting states. In this paper, a systematic summary is presented to cover the characterization of surface wettability, the construction techniques, and selected functional applications. With respect to fabrication techniques, the following three types of technology routes, viz., "pre-texturing + post-modifying," "pre-modifying + posttexturing," and in situ one-step construction will be discussed. The merits and demerits of each technology route are discussed. It is vital to rationally design or adopt appropriate construction strategies in diverse conditions. Appropriately constructed superamphiphobic multifunctional surfaces can be applied in many fields, however, most have not been scaled-up and utilized for practical applications due to some specific difficulties required to be resolved in the future. These challenges and further outlook for super-antiwetting surfaces are discussed in this review.

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Section: Functional Applicationsmentioning

confidence: 99%

Bioinspired Surfaces with Superamphiphobic Properties: Concepts, Synthesis, and Applications

Liu

Wang

Huang

et al. 2018

Adv Funct Materials

217

136

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“…Despite much effort to date to address this problem, no effective, durable solution to achieve an anti-fingerprint or easy-to-clean coating has been realised. 1 The term easy-to-clean embodies both a decreased uptake of contamination on initial touch as well as the ease this contamination can be removed with, also called cleanability. 2 To address it, the focus has been mainly on creating functional surfaces via thin film coatings in order to decrease the initial adhesion.…”

Section: Introductionmentioning

confidence: 99%

“…2 To address it, the focus has been mainly on creating functional surfaces via thin film coatings in order to decrease the initial adhesion. 1,[3][4][5] However, in practice, the adhesion of contamination onto the surface can never be fully prevented due to the very low surface energy of the compounds that make up a fingerprint. 6-8 Achieving superior cleanability behavior is therefore a key performance criterion in practical applications of designing surfaces, in addition to minimizing the adherence of contamination upon initial touch.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, it could be demonstrated that artificial sebum is suitable to mimic the behavior of fingerprints under real world conditions, and demonstrated it is more relevant than the use of model liquids [3][4][5][11][12][13][14][15][16] or real fingerprints. 1,10 In this study, we investigate the possibility of shear-banding occurring within the contamination as well as a fingerprint's behavior under various shearing conditions. Furthermore, we study the cleaning efficiency of cloths depending on their fiber diameter and surface energy as well as their influence on the shear-band.…”

Section: Introductionmentioning

confidence: 99%

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Cleaning Dirty Surfaces: A Three-Body Problem

Stoehr

Hall

Evans

et al. 2016

ACS Appl. Mater. Interfaces

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Human interaction with touch screens requires physical touch and hence results in contamination of these surfaces, resulting in the necessity of cleaning. In this study we discuss the three bodies of this problem and how each component contributes and can be controlled. Utilizing a standard fingerprint machine and a standard cleanability test, this study examines the influence of parameters such as the wiping speed and pressure, the material and surface area of the cloths, and the surface energy of the contaminated surfaces. It was shown that fingerprint contamination undergoes shear banding and hence is not easily removed. The degree of material removal depends on the position of the shear plane, which is influenced by surface energies and shear rates.

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“…To the best of our knowledge, only limited studies on the fabrication of mechanically durable superhydrophobic surfaces have been reported in the literature. Most mechanically stable superhydrophobic surfaces can maintain their superhydrophobicity only under mild conditions, such as sand impingement, tape‐peeling,[11b] water‐impact tests, supersonic treatments,[12a] or slight friction (a few centimeters or dozens of centimeters of abrasion with sandpaper) . Moreover, a host of current procedures either require complex processing and specialized equipment or are difficult to realize industrial‐scale applications.…”

mentioning

confidence: 99%

Large‐Scale Fabrication of Robust Superhydrophobic Coatings with High Rigidity and Good Flexibility

Liang

Sun

Hang

et al. 2016

Adv Materials Inter

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impingement, [ 11 ] tape-peeling, [ 11b ] waterimpact tests, [ 12 ] supersonic treatments, [ 12a ] or slight friction (a few centimeters or dozens of centimeters of abrasion with sandpaper). [ 13 ] Moreover, a host of current procedures either require complex processing and specialized equipment or are diffi cult to realize industrial-scale applications. [ 8b , 14 ] Clearly, the creation of a simple, low-cost superhydrophobic surface with excellent mechanical durability and practical utility for large-scale applications is urgently required. Recently, Lu et al. have developed a method to bond the self-cleaning coatings to the substrates by using adhesives; the resulting surfaces maintained their hydrophobicity after various types of destructive tests, including fi nger-wipe, knife-scratch, and 40 abrasion cycles with sandpaper tests. [ 15 ] However, such a two-layer system is unfavorable for paint construction.In the present work, we developed a polymer-based superhydrophobic composite coating by combining a methyl silicone resin with a superhydrophobic silica sol. To fabricate the superhydrophobic silica sol, we selected γ-aminopropyltriethoxysilane (APTES) and 1H,1H,2H,2H-perfl uorooctyltriethoxysilane (PFOTS) as the agglomeration agent and hydrophobic agent, respectively, with which to modify silica nanoparticles; the average diameter of this silica nanoparticles was about approximately 3-5 nm, which are smaller than other superhydrophobic nanoparticles reported in the literature to date. [ 15,16 ] We subsequently added a commercial methyl silicone resin to the superhydrophobic sol to enhance its mechanical durability. The coating exhibits remarkable superhydrophobicity even after being subjected to a fi nger-wipe test, a knife-scratch test, or 50 abrasion cycles with sandpaper. The coating exhibits high rigidity (pencil hardness of 9H), good fl exibility (impact resistance of 1 m kg) and great adhesion (5B).The superhydrophobic surface is attributed to a combination of topographical microstructures and chemical compositions. [ 17 ] When a drop of water (5 µL) was placed on the composite coating substrate, a perfect spherical water droplet formed with a CA of 166° and a SA of 1° ( Figure 1 a). The CAs were 137° and 129° for diiodomethane and edible oil, respectively, showing the coating's good oleophobicity. And the apparent surface free energy is 1.14 mJ·m −2 according to the Owens-Wendt method. The surface topography of the composite coating was examined by scanning electron microscopy (SEM). Numerous aggregated silica nanoparticles and micropores were observed to be distributed on the coated substrate (Figure 1 b). These particles and micropores can trap a large fraction of air, which is essential for The practical applications of superhydrophobic self-cleaning surfaces have been hampered by poor mechanical durability. Here, a composite coating that possesses excellent superhydrophobicity and robust mechanical durability is fabricated, consisting of a methyl silicone resin and a superhydrophobic sil...

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A robust transparent and anti-fingerprint superhydrophobic film

Abstract: A thin film of polyaniline (PANI) nanofibers on the stainless steels with fluoro-thiol modification was prepared through an optimal polymerization time of aniline using HClO4 as a dopant, showing robust superhydrophobic, transparent and anti-fingerprint properties.

Cited by 50 publications

References 27 publications

Bioinspired Surfaces with Superamphiphobic Properties: Concepts, Synthesis, and Applications

Bioinspired Surfaces with Superamphiphobic Properties: Concepts, Synthesis, and Applications

Cleaning Dirty Surfaces: A Three-Body Problem

Large‐Scale Fabrication of Robust Superhydrophobic Coatings with High Rigidity and Good Flexibility

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