A Review on Superhydrophobic Polymer Nanocoatings: Recent Development and Applications

Das, Subhajit; Kumar, Sudheer; Samal, Sushanta K.; Mohanty, Smita; Nayak, Sanjay K.

doi:10.1021/acs.iecr.7b04887

Cited by 287 publications

(156 citation statements)

References 133 publications

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“…[1][2][3][4][5][6][7][8][9][10] Good performance of such AFF coatings on glass and metals (Al and Cu) has been achieved. This phenomenon is known as fogging or frosting depending on whether the surface temperature is lower than the dew or frost point of water.…”

Section: Introductionmentioning

confidence: 98%

“…This phenomenon is known as fogging or frosting depending on whether the surface temperature is lower than the dew or frost point of water. [4][5][6][7][8][9][10] In addition to superhydrophobic AFF coatings, there are also many antifog/antifrost coatings made of superhydrophilic materials. It causes inconveniences, damages, and even triggers hazardous situations.…”

Section: Introductionmentioning

confidence: 99%

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Preparation of superhydrophilic nanosilica/polyacrylate hard coatings on plastic substrate for antifogging and frost‐resistant applications

Chang

Lin

Cheng

2019

J of Applied Polymer Sci

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A series of photosensitive hydrophilic agents (T20) comprising Tween-20, isophorone diisocyanate, and 2-hydroxyethyl methacrylate moieties were synthesized and used in the preparation of antifog/frost resistant (AFF) hard coatings on plastic substrates. By means of a hydrophilic/hydrophobic bilayer design, the prepared coatings demonstrated not only AFF property but also water resistibility. The bottom layer is an organic-inorganic composite consisting of SiO 2 nanoparticles embedded in a polymeric network of crosslinked dipentaethritol hexaacrylate. The AFF layer incorporates T20 in the formulations and links covalently with the bottom layer through a UV-curing polymerization process. Various methods, for example, FTIR, SEM, contact angle, and steam/defrosting tests, were employed to characterize the prepared coatings. Optimally, the coatings were found to be transparent, strong (4H, pencil hardness), adhering perfectly (level 5B) to the poly(methyl methacrylate) substrate, and could be soaked in water for 24 h at 25 C without losing hydrophilicity (contact angle~0 ) or antifogging capability.Recently, a new promising approach was reported which introduced the layer-by-layer (LBL) assembly technique to prepare coatings that demonstrated both antifogging and antifrosting effects. [35][36][37][38][39] For example, Lee et al. assembled PVA/PAA multilayers and then post-treated with poly(ethylene glycol) methyl ether (PEG) to produce AFF coatings. 37 The PEG segments were found to serve, in addition to PVA and PAA, as sites to absorb nonfreezing water and prevent formation Additional Supporting Information may be found in the online version of this article.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Preparation of superhydrophilic nanosilica/polyacrylate hard coatings on plastic substrate for antifogging and frost‐resistant applications

Chang

Lin

Cheng

2019

J of Applied Polymer Sci

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“…It is not intended to be a comprehensive review. The readers are referred to several excellent reviews for in‐depth survey of the two research topics …”

Section: Introductionmentioning

confidence: 99%

DNA‐Based Nanofabrication: Pathway to Applications in Surface Engineering

Hui

Zhang

Deng

et al. 2019

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This Concept provides an overview of recent developments of DNA‐based nanofabrication and discusses its potential applications in the area of surface engineering. The first part of the paper discusses the strength and limitations of existing DNA‐based nanofabrication methods. The second part highlights several examples of surface engineering applications involving nano‐ and microscale surface textures. It finishes with a discussion of the opportunities and remaining challenges of applying DNA‐based nanofabrication in surface engineering applications.

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“…demonstrated the creation of a stable, superhydrophobic surface using the nanoscale roughness inherent in a vertically aligned carbon nanotube (CNT) forest together with a thin, conformal hydrophobic polytetrafluoroethylene (PTFE) coating on the surface of the nanotubes . In a review article, Kumar and others reviewed various aspects of superhydrophobic polymer nanocoatings . Pristine CNTs are hydrophobic in nature, but they do not disperse in many common solvents, hence require proper modification .…”

Section: Introductionmentioning

confidence: 99%

Nanoconjugates of methacrylic polymers: Synthesis, characterization, and immobilization to leather

Ayyappan

Prakash

Jaisankar

et al. 2019

J of Applied Polymer Sci

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Imparting superhydrophobicity to surfaces has direct implications for developing water-repellent materials. Most hydrophobic materials cannot be applied directly to specific surfaces like leather because of noncompatibility. Although methacrylic polymers are compatible to leather, their inherent hydrophilic characteristics make it challenging to use for introducing hydrophobicity or superhydrophobicity. In this article, we present a strategy of introducing hydrophobicity in various degrees as well as superhydrophobicity to different surfaces, particularly leather and glass surfaces by using conjugates of methacrylic polymers and various carbon nanomaterials. The covalent functionalization of methacrylate polymers with carbon nanotubes and fullerenes was performed by radical polymerization in the presence or absence of chain transfer agents (CTAs). CTA was used during polymerization to introduce carboxylic acid group, necessary for chromium-assisted binding to leather to avoid leaching. A balance between the compatibility of the polymer nanoconjugates with the leather and the amount necessary for coating stabilization was studied by a rheometer. While water contact angle measurement indicated the mild hydrophobicity in most cases, we were delighted to observe superhydrophobicity in one case presumably due to increased roughness because of the presence of specific nanomaterial to overcome inherent hydrophilicity of methacrylic polymers.

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A Review on Superhydrophobic Polymer Nanocoatings: Recent Development and Applications

Cited by 287 publications

References 133 publications

Preparation of superhydrophilic nanosilica/polyacrylate hard coatings on plastic substrate for antifogging and frost‐resistant applications

Preparation of superhydrophilic nanosilica/polyacrylate hard coatings on plastic substrate for antifogging and frost‐resistant applications

DNA‐Based Nanofabrication: Pathway to Applications in Surface Engineering

Nanoconjugates of methacrylic polymers: Synthesis, characterization, and immobilization to leather

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