Fundamentals and basics of synthetic approaches of nanostructured coatings

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 57 - 94

Published: Jan. 1, 2025

Language: Английский

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Sandwich-Structured Coating of a Electrospun Fibrous for Excellent anticorrosion with superhydrophobic and self-repair ability

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2025, Volume and Issue: unknown, P. 136906 - 136906

Published: April 1, 2025

Language: Английский

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Rare‐Earth Aluminate Nanoparticles and Alumina/Polyvinylpyrrolidone Nanofibers as Functional and Reinforcement Agents Toward Transparent and Photoluminescent Plastic as Ultraviolet Filter

Journal of Applied Polymer Science, Journal Year: 2025, Volume and Issue: unknown

Published: April 28, 2025

ABSTRACT Mechanically reliable photoluminescent bricks were developed by reinforcing polyurethane (PUR) with electrospun alumina nanofibers (EAN). Nanoparticles of rare‐earth aluminate (NRA) physically integrated into PUR to impart photoluminescence and photochromic capabilities. EAN was applied plastic bars as a agent improve their mechanical characteristics. Using transmission electron microscopy (TEM), NRA has diameters 40–180 nm. Both spectra colorimetric coordinates used verify that EAN@PUR is transparent undergoes greenish color shift when exposed UV light. An emission peak reported at 518 nm an excitation wavelength (375 nm) applied. The lower contents displayed fluorescence instantly reversible. At higher concentrations NRA, exhibited delayed reversibility persistent emission. electrospinning solution polyvinylpyrrolidone/aluminum chloride prepared the sol–gel technique, then calcination. scanning (SEM), ranging from 80 230 analyzed morphologically utilizing different analytical techniques. Increases in hydrophobicity protection observed concentration increased. Additionally, NRA‐containing demonstrated better scratch resistance than NRA‐free bricks.

Language: Английский

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Development of Glass Nanofiber and Lanthanide Phosphor–Embedded Natural Polymer Nanocomposite Coating for Ultraviolet Filtering Smart Windows and Optical Data Encryption

Luminescence, Journal Year: 2025, Volume and Issue: 40(5)

Published: April 27, 2025

ABSTRACT Glass nanofibers were prepared by using the electrospinning technology, demonstrating diameters of 50–150 nm. A smart polymer adhesive that has ability to glow in dark and resist water was developed from a hybrid electrospun glass (EGN; reinforcement fibers), rare‐earth aluminate (REA; photochromic agent), gum Arabic (GA; hosting matrix). After an excitation source is turned off, produced luminescent glue can continue produce light for up 100 min. The EGN@GA used immobilize nanoparticles REA ranging size 6 12 adhesives exhibited band at 365 nm emission intensity 518 Both fluorescence afterglow emissions tracked depending on concentration. presence photochromism confirmed when colorless film switched green upon exposure UV yellowish‐green place. scratch resistance hydrophobicity nanocomposites observed improve with increasing content. photostability durability REA/EGN@GA nanocomposite explored. current photoluminescent have several potential applications, including packaging, safety signs, security encoding.

Language: Английский

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Silica nanoparticle-reinforced polyurethane plastic immobilized with strontium aluminate nanofiller: Ultraviolet protection, superhydrophobicity and photoluminescence

Journal of Photochemistry and Photobiology A Chemistry, Journal Year: 2024, Volume and Issue: 456, P. 115808 - 115808

Published: June 3, 2024

Language: Английский

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Development of strontium aluminate‐printed nonwoven fabric from recycled cotton cellulose for smart wearable photochromic applications

Luminescence, Journal Year: 2024, Volume and Issue: 39(9)

Published: Sept. 1, 2024

Smart photochromic and fluorescent textile refers to garments that alter their colorimetric properties in response external light stimulus. Cotton fibers have been reported as a main resource for many non-textile industries, such automobiles, medical devices, furniture applications. is natural fiber distinguished with breathability, softness, cheapness, highly absorbent. However, there growing demands find other resources cotton textiles at high quality low cost various applications, sensor harmful ultraviolet radiation. Herein, we present novel method toward luminescent nonwoven from recycled waste. Using the screen-printing technology, fabric both was developed using aqueous inorganic phosphor nanoparticles (10-18 nm)-containing printing paste. Both CIE Lab color coordinates photoluminescence spectra showed transparent film printed on develops reversible green emission (519 nm) under (365 nm), even pigment concentration (2%) Colorfastness of fabrics durability photostability.

Language: Английский

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Surface-silanized glass nanofibers and aluminate nanoparticles as reinforcing agents for acrylic emulsion toward multifunctional stimuli-responsive composite coatings

Ceramics International, Journal Year: 2024, Volume and Issue: 50(16), P. 28619 - 28627

Published: May 12, 2024

Language: Английский

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Enhancing security authentication and mapping of fingermarks using dual-mode emission of phosphor-immobilized glass nanofiber-reinforced carboxymethyl cellulose nanocomposite

Ceramics International, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 1, 2024

Language: Английский

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Unexpected self-healing acceleration within urethane networks: lignosulfonate mediation of ionic and hydrogen bonds for ultra-strong recyclable elastomers

Journal of Macromolecular Science Part A, Journal Year: 2024, Volume and Issue: 61(11), P. 911 - 921

Published: Oct. 16, 2024

Stiff structures are generally considered detrimental to the materials' self-healing efficiency because of rigid conformation and restricted motion molecular chains. However, in this study, an unexpected acceleration was observed a urethane network when lignosulfonate, bio-based stiff structure with benzene rings, introduced into polyurethane matrix. An extraordinary increase mechanical properties achieved just 3 wt% lignosulfonate added pristine sample, including strength from 16.24 MPa 42.89 elongation at break 390% 602%. Importantly, significant enhancement accompanied by notable healing time efficiency, which increased up 44% compared sample. This unique behavior can be attributed mediation on ionic bonds between segment, as well hydrogen formed within segments. ensures ultra-high without compromising capacity opens way for accelerating elastomers through readily available biomass-derived material. In addition, addition lignosulfonates gives elastomer some Anti-UV performance.

Language: Английский

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Preparation of lanthanide aluminate‐encapsulated silica nanoparticles toward long‐persistent photoluminescent polymer paint with superhydrophobic and anticorrosion properties

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: 141(39)

Published: July 17, 2024

Abstract Smart afterglow paints can function as energy‐saving products that are able to persist lighting in the dark. Additionally, polyurethane (PURPs) have shown some limitations, including weak adhesion, poor mechanical performance, corrosion, and low water resistance compared with solvent‐based paints. Herein, nanoparticles of lanthanide aluminate (NLA; 16–24 nm) were mixed silica develop novel photoluminescent nanocomposite A precursor NLA‐encapsulated (NLA@Silica; 200–225 be described a SiO 2 ‐coated NLA pigment prepared by heterogeneous precipitation method. Steel was coated made PURP, silica, NLA. Using emission spectra Commission Internationale de l'Eclairage (CIE) Lab coordinates, coloring transparency painted films investigated. Upon excitation at 365 nm, UV‐irradiation transparent showed green 518 nm. The hydrophobic activity hardness properties examined. electrochemical impedance spectroscopy (EIS), anticorrosion coatings applied mild steel studied. Improved characteristics observed due fluorescence NLA@Silica coatings. optimal long‐lasting luminous for containing 12.5% NLA@Silica.

Language: Английский

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