Preparation of cellulose nanowhiskers‐reinforced polyurethane: Photoresponsive plastic with ultraviolet protection and superhydrophobic properties

Journal of Applied Polymer Science, Journal Year: 2024, Volume and Issue: 141(30)

Published: May 14, 2024

Abstract Transparent, photoluminescent, mechanically reliable, ultraviolet protective and superhydrophobic thermoplastic polyurethane (TPU) plastic was developed. A simple strategy to prepare transparent that glows in the dark is use alkaline earth strontium aluminate (AESA) nanoparticles trapped (TPUR). In order improve both hardness transparency of composite, cellulose nanowhiskers were used as a crosslinker drier. The colorless substrates exhibited color shift greenish when exposed source. Transmission electron microscope (TEM) employed examine morphology AESA (8–15 nm diameter) (3–7 width 645–665 length). Morphological studies parameters assess TPUR samples. Excitation emission spectral analyses also study photoluminescence characteristics. made luminescent showed an excitation band at 388 two bands 452 515 nm. samples with greater levels long‐persistent afterglow, whereas lower amounts rapid reversible fluorescence irradiated light. Enhanced UV shielding superhydrophobicity observed photoluminescent upon increasing phosphor content.

Language: Английский

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Structure–property evolution of poly(ethylene terephthalate)/poly(trimethylene terephthalate) side‐by‐side self‐crimp filament

Journal of Applied Polymer Science, Journal Year: 2023, Volume and Issue: 141(6)

Published: Nov. 30, 2023

Abstract To investigate the microstructure and mechanical properties of self‐crimping two‐component side‐by‐side bicomponent filament, this paper focuses on systematically investigating structure–property evolution poly(ethylene terephthalate) (PET)/poly(trimethylene (PTT) filament prepared via melt spinning with various component ratios, drawing heating treatment. The investigation was operated upon combination morphology analysis, thermal crystallization, orientation analysis. variation cross section curl‐morphology, microstructures mainly containing lamellar microfibrillar crystals as well their effects were discussed. As draft ratio (DR) increases, crystallinity, sonic factor, tensile strength, crimp‐recovery rate filaments increased. factor in crystalline region decreases from 0.923 to 0.777 but increases 0.677 0.903 amorphous region. In contrast DR, temperature has a limited effect strength PET/PTT hybrid filaments. Crimp‐recovery rate, however, first 11.8 then 9.8 an increasing 144 168°C. Most these behaviors have been attributed changes contractile stress for both PTT PET components, originating microstructural filaments, including crystal growth, breakage, deflection, deformation chains along axial direction. summary, interpretive diagrammatic sketch proposed clarify relationships commercial

Language: Английский

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Formic acid electrospun composite fibers based on polyhydroxybutyrate/polyamide 6 loaded with protonated montmorillonite as promising disposable heavy metal removal sorbent

Emergent Materials, Journal Year: 2024, Volume and Issue: unknown

Published: April 18, 2024

Language: Английский

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Regioselective enzymatic depolymerization of aromatic-aliphatic polyester revealed by computational modelling

Journal of Hazardous Materials, Journal Year: 2024, Volume and Issue: 474, P. 134797 - 134797

Published: June 7, 2024

Language: Английский

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Eco-friendly poly (ε-caprolactone) based Microfiltration polymeric membranes - influence of dope composition on morphology and performance concerning oil-water separation

Journal of Polymer Research, Journal Year: 2024, Volume and Issue: 31(12)

Published: Dec. 1, 2024

Language: Английский

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