Mechanically robust and self-cleaning antireflection coatings from nanoscale binding of hydrophobic silica nanoparticles

Chi, Fangting; Liu, Dejian; Wu, Haoyan; Lei, Jiehong

doi:10.1016/j.solmat.2019.109939

Cited by 76 publications

(27 citation statements)

References 64 publications

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“…Coating hardness, the capacity of a particular coating to withstand superficial mechanical forces, is an important factor to assess its environmental durability. In this work, a constant-load scratch test according to the ASTM D3363 method is applied to determine the hardness of as-coated randomly arranged 80/130/180 nm silica colloid/poly(ETPTA) composite using a pencil set with different hardness grades (1H–5H) [ 34 , 35 , 36 , 37 ]. In the experiment, the selected pencil with a load of 10 N is placed on the coating and forms a 45° angle with the surface.…”

Section: Resultsmentioning

confidence: 99%

Single-Step Fabrication of Longtail Glasswing Butterfly-Inspired Omnidirectional Antireflective Structures

et al. 2022

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Most bio-inspired antireflective nanostructures are extremely vulnerable and suffer from complicated lithography-based fabrication procedures. To address the issues, we report a scalable and simple non-lithography-based approach to engineer robust antireflective structures, inspired by the longtail glasswing butterfly, in a single step. The resulting two-dimensional randomly arranged 80/130/180 nm silica colloids, partially embedded in a polymeric matrix, generate a gradual refractive index transition at the air/substrate interface to suppress light reflection. Importantly, the randomly arranged subwavelength silica colloids display even better antireflection performance for large incident angles than that of two-dimensional non-close-packed silica colloidal crystals. The biomimetic coating is of considerable technological importance in numerous practical applications.

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Section: Resultsmentioning

confidence: 99%

Single-Step Fabrication of Longtail Glasswing Butterfly-Inspired Omnidirectional Antireflective Structures

et al. 2022

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“…The study by Chi et al [113] found that the addition of organic silica adhesive can attain precise control of the optical transmittance and mechanical strength by adjusting the refractive index of coatings. They explored a simple dip-coating method that enables the fabrication of self-cleaning, antireflection and robust coatings without loss of optical property through nanoscale binding of hydrophobic silica nanoparticles with an organosilica adhesive.…”

Section: Solar Photovoltaic (Pv) Panelmentioning

confidence: 99%

Recent Progresses of Superhydrophobic Coatings in Different Application Fields: An Overview

et al. 2021

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With the development of material engineering and coating industries, superhydrophobic coatings with exceptional water repellence have increasingly come into researchers’ horizons. The superhydrophobic coatings with corrosion resistance, self-cleaning, anti-fogging, drag-reduction, anti-icing properties, etc., meet the featured requirements from different application fields. In addition, endowing superhydrophobic coatings with essential performance conformities, such as transparency, UV resistance, anti-reflection, water-penetration resistance, thermal insulation, flame retardancy, etc. plays a remarkable role in broadening their application scope. Various superhydrophobic coatings were fabricated by diverse technologies resulting from the fundamental demands of different fields. Most past reviews, however, provided only limited information, and lacked detailed classification and presentation on the application of superhydrophobic coatings in different sectors. In the current review, we will highlight the recent progresses on superhydrophobic coatings in automobile, marine, aircraft, solar energy and architecture-buildings fields, and discuss the requirement of prominent functionalities and performance conformities in these vital fields. Poor durability of superhydrophobic coating remains a practical challenge that needs to be addressed through real-world application. This review serves as a good reference source and provides insight into the design and optimization of superhydrophobic coatings for different applications.

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“…4 The preparation and application of artificial hydrophobic materials had developed rapidly. Hydrophobic materials had been excellent in self-cleaning, [5][6][7][8][9] anti-icing, 10 anticorrosion, [11][12][13] anti-fouling, 14,15 oil-water separation, 16 and so forth. Researchers had explored a variety of methods for constructing superhydrophobic surfaces meanwhile explored and developed the application of hydrophobic materials in daily life.…”

Section: Introductionmentioning

confidence: 99%

Preparation and study of stable fluorine‐free superhydrophobicity of cotton fibers

Xiao

Wang

Huang

2021

J of Applied Polymer Sci

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This paper proposes a method of directly modifying the surface of cotton fiber to achieve super‐hydrophobic properties. The process was directly utilized the long‐chain alkyl siloxane and the nano‐SiO2 modified cotton cloth, which was simple to operate, low in cost and environmentally friendly. This study discussed the influence of solvent ratio, reactant content and ammonia content on hydrophobicity. The solvent ratio had the greatest influence, and the maximum water contact angle (CA) changes were70° ± 1°. The maximum water CA of the superhydrophobic cotton fabric prepared after process selection was 162 ± 1.5°; it had good acid, alkali and salt resistance. After 24 h in a solution with a pH of 1–14, CA remained almost unchanged; After 144 h in a 3.5% salt solution, CA stabilized above 132°; it had self‐cleaning properties; it had good selective adsorption performance, which can quickly separate oil and water; it had good mechanical stability. After 300 times abrasion of sandpaper, which still shows hydrophobic properties.

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Mechanically robust and self-cleaning antireflection coatings from nanoscale binding of hydrophobic silica nanoparticles

Cited by 76 publications

References 64 publications

Single-Step Fabrication of Longtail Glasswing Butterfly-Inspired Omnidirectional Antireflective Structures

Single-Step Fabrication of Longtail Glasswing Butterfly-Inspired Omnidirectional Antireflective Structures

Recent Progresses of Superhydrophobic Coatings in Different Application Fields: An Overview

Preparation and study of stable fluorine‐free superhydrophobicity of cotton fibers

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