Supersonically sprayed transparent flexible multifunctional composites for self-cleaning, anti-icing, anti-fogging, and anti-bacterial applications

Park, Chanwoo; Kim, Taegun; Kim, Yong Il; Lee, Min Wook; An, Seongpil; Yoon, Sam S.

doi:10.1016/j.compositesb.2021.109070

Cited by 64 publications

(12 citation statements)

References 58 publications

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“…Among them, metal oxides play a very important role in many areas of chemistry, physics, and materials science. Metal oxides (MOs) play a key role in the areas of material science, sensors, UV shielding, photovoltaics, hydrogen generation, dye degradation, anti-fogging glass, photocatalysts, adsorption [5][6][7][8][9][10][11][12], etc. In recent years, plentiful approaches have been projected for the synthesis of metal oxide, including methods such as microemulsion, auto combustion, co-precipitation, the sol-gel method, the non-aqueous route, pyrolysis reaction, thermal decomposition, solvothermal, hydrothermal, and mechano-chemical processing, emulsion techniques, laser ablation, gamma ray irradiation, solid-state reaction, and sono-chemical preparation [13][14][15][16][17].…”

Section: Introductionmentioning

confidence: 99%

“…Photocatalytic dye degradation is one of the best degradation methods to remove pollutants from the environment. Additionally, methylene blue (MB) dye has many disadvantages, including toxic and carcinogenic effects and skin irritation [6][7][8][9][10][11][12][13][14][15][16][17]. Among these MOs, Fe 2 O 3 has been given much attention due to its high efficiency and easy recovery.…”

Section: Introductionmentioning

confidence: 99%

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Photocatalytic Dye Degradation and Bio-Insights of Honey-Produced α-Fe2O3 Nanoparticles

Sharmila

Mani

Parvathiraja

et al. 2022

Water

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Iron oxide nanoparticles are produced using simple auto combustion methods with honey as a metal-stabilizing and -reducing agent. Herein, α-Fe2O3 nanoparticles are produced using an iron nitrate precursor. These prepared samples are analyzed by an X-ray diffractometer (XRD), FTIR spectroscopy, UV-DRS, and a field-emission scanning electron microscope (FESEM) combined with energy-dispersive spectroscopy and a vibrating sample magnetometer (VSM). The XRD results confirm a rhombohedral structure with an R3c¯ space group single-phase formation of α-Fe2O3 in all samples. FESEM images reveal the different morphologies for the entire three samples. TEM analysis exhibits spherical shapes and their distribution on the surfaces. XPS spectroscopy confirms the Fe-2p and O-1s state and their valency. The VSM study shows strong ferromagnetic behavior. The prepared α-Fe2O3 nanoparticles exhibit exceptional charge carriers and radical production. The prepared sample retains excellent photocatalytic, antifungal and antibacterial activity.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Photocatalytic Dye Degradation and Bio-Insights of Honey-Produced α-Fe2O3 Nanoparticles

Sharmila

Mani

Parvathiraja

et al. 2022

Water

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“…More recently, some polymeric coatings with a semi-interpenetrating polymer network (SIPN) have been developed, through a binary or terpolymer acrylic polymers. Moreover, some zwitter-wettable coatings with both antifogging/antibacterial performances can also be developed by the combination of a cationic copolymer and a hydrophilic copolymer [ 38 , 39 ]. Although good anti-fog properties have been obtained for these coatings, there is still a strong demand for preparing these wettable coatings by a more rapid and convenient method.…”

Section: Introductionmentioning

confidence: 99%

Fast UV-Curable Zwitter-Wettable Coatings with Reliable Antifogging/Frost-Resisting Performances

Zhong

Liu

et al. 2022

Biomimetics

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Antifogging surfaces with unique properties to migrate severe fog formation have gained extensive interest, which is of particular interest for transparent substrates to obtain high visibility and transparency. To date, a large number of strategies including superhydrophilic or superhydrophobic surfaces and titanium dioxide (TiO2)-based composite coatings have been developed based on different mechanisms. Although these surfaces exhibit effective antifogging properties, the rigid nanostructures, cumbersome preparation, and the need for UV light excitation largely limit their widespread applications. Herein, we report a zwitter-wettable antifogging and frost-resisting coating through a fast UV-curable cross-linking of copolymer with benzophenone groups. A series of random copolymers consisting of hydrophilic hydroxyethyl methacrylate (HEA), hydrophobic methyl methacrylate (MMA), and benzophenone-based acrylate units are developed by thermally triggered free-radical polymerization. Upon UV light irradiation, a highly efficient antifogging/frost-resisting coating is covalently bonded on a polycarbonate plate surface, maintaining a light transmission higher than 85%, which was confirmed in both high and low temperature anti-fog tests. Moreover, the wetting behaviors reveal that the antifogging performance exhibited by the zwitter-wettable surface mainly relies on its surface water-adsorbing capability to imbibe condensed water vapor on the surface outmost layer. Notably, the antifogging/frost-resisting behaviors can be well regulated by adjusting the hydrophilic/hydrophobic units, due to the proper balance between the water-adsorption and coating stability. Owing to its simplicity, low-cost preparation and high efficiency, this UV-curable acrylate antifogging coating may find a wide range of applications in various display devices in analytical and detection instruments.

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“…Superhydrophobic surfaces are defined as having a water contact angle higher than 150° and a water sliding angle lower than 10°. Superhydrophobic coatings have been extensively researched and applied in self-cleaning, oil/water separation, anti-condensation, anti-fogging, and anti-icing [ 17 , 18 , 19 , 20 , 21 , 22 ]. Inspired by the lotus leaf effect, numerous studies have shown that superhydrophobicity can be obtained by the combination of micro/nano scale surface roughness and a low-surface-energy coating [ 23 , 24 ].…”

Section: Introductionmentioning

confidence: 99%

Facile Fabrication of Superhydrophobic and Flame-Retardant Coatings on Cotton Fabrics

Xiong

et al. 2022

Polymers

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The hydrophilicity and inherent flammability of cotton textiles severely limit their usage. To solve these drawbacks, a superhydrophobic and flame-retardant (SFR) coating made of chitosan (CH), ammonium polyphosphate (APP), and TiO2-SiO2-HMDS composite was applied to cotton fabric using simple layer-by-layer assembly and dip-coating procedures. First, the fabric was alternately immersed in CH and APP water dispersions, and then immersed in TiO2-SiO2-HMDS composite to form a CH/APP@TiO2-SiO2-HMDS coating on the cotton fabric surface. SEM, EDS, and FTIR were used to analyze the surface morphology, element composition, and functional groups of the cotton fabric, respectively. Vertical burning tests, microscale combustion calorimeter tests, and thermogravimetric analyses were used to evaluate the flammability, combustion behavior, thermal degradation characteristics, and flame-retardant mechanism of this system. When compared to the pristine cotton sample, the deposition of CH and APP enhanced the flame retardancy, residual char, heat release rate, and total heat release of the cotton textiles. The superhydrophobic test results showed that the maximal contact angle of SFR cotton fabric was 153.7°, and possessed excellent superhydrophobicity. Meanwhile, the superhydrophobicity is not lost after 10 laundering cycles or 50 friction cycles. In addition, the UPF value of CH/APP@TiO2-SiO2-HMDS cotton was 825.81, demonstrating excellent UV-shielding properties. Such a durable SFR fabric with a facile fabrication process exhibits potential applications for both oil/water separation and flame retardancy.

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Supersonically sprayed transparent flexible multifunctional composites for self-cleaning, anti-icing, anti-fogging, and anti-bacterial applications

Cited by 64 publications

References 58 publications

Photocatalytic Dye Degradation and Bio-Insights of Honey-Produced α-Fe2O3 Nanoparticles

Photocatalytic Dye Degradation and Bio-Insights of Honey-Produced α-Fe2O3 Nanoparticles

Fast UV-Curable Zwitter-Wettable Coatings with Reliable Antifogging/Frost-Resisting Performances

Facile Fabrication of Superhydrophobic and Flame-Retardant Coatings on Cotton Fabrics

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