Gelation‐Constrained Freeze‐Casting Fabrication of Ultra‐Homogeneous Nanocomposite Aerogels with Superelasticity and Harsh Environment Tolerance

Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown

Published: March 18, 2025

Abstract Freeze casting is a versatile technique for organizing low‐dimensional building blocks into ordered porous structural materials. However, the freeze‐casting fabrication of materials with robust and topologically elastic skeleton to withstand harsh conditions challenging. Herein, silanized ultra‐homogeneous nanocomposite aerogel fabricated using gelation‐constrained strategy. Diverging from traditional methods employing solution precursor, approach involves process utilizing rational‐designed supramolecular hydrogel as quasi‐solid precursor. The within hydrogel, enclosed in dense hydrogen‐bonded network, effectively mitigate secondary agglomeration caused by ice crystallization concentration enrichment during freeze‐casting. By forming cellular an interconnected nanoparticle resulting aerogels exhibit exceptional mechanical elasticity retaining over 98% height after 10 000 compression cycles, along superior electrical properties showing 78.9% increase conductivity compared conventional aerogels. Wearable piezoresistive sensors these demonstrate outstanding force sensing capabilities, broad linear range (0–17.6 kPa) high sensitivity (1.32 kPa −1 ). When integrated intermediate layer protective garments, offer insulation fire resistance, enabling them endure like repetitive extreme deformations, exposure high‐temperature flames, water‐erosion damages.

Language: Английский

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Smart and flexible PVDF/SEBS membranes reinforced with pyrolytic carbon black nanoparticles from waste tires for enhanced wastewater remediation

Journal of Water Process Engineering, Journal Year: 2025, Volume and Issue: 72, P. 107469 - 107469

Published: March 14, 2025

Language: Английский

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Surface Modification and Thermal Conductivity of PET Fabrics with Butadiene Latex and Carbon Black

Fibers and Polymers, Journal Year: 2025, Volume and Issue: unknown

Published: March 24, 2025

Language: Английский

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Functionalized recycled polyethylene terephthalate plastic by rare earth oxide for electronic device and housing infrastructure applications

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: March 24, 2025

Abstract Recycled polyethylene terephthalate (RPET) was doped with Neodymium Oxide (Nd 2 O 3 : 0, 1, 2, 4, and 8 wt.%) to investigate its structural, optical, dielectric, mechanical properties. X-ray diffraction (XRD) analysis revealed that pure RPET exhibited an amorphous structure, while the incorporation ofNd induced formation of crystalline phases, crystallinity increasing as Nd concentration increased. Fourier-transform infrared (FTIR) spectroscopy identified chemical interactions between , evidenced by a new band around 535 cm −1 . Optical using diffuse reflectance UV–Vis showed reduction in gap from 3.75 eV for 2.25 8wt.% samples, indicating enhanced optical Dielectric studies doping significantly decreased dielectric constant RPET, contributing thermal stability constant. Furthermore, loss conductivity improved, observed across varying temperatures. Dynamic (DMA) adding wt.% reduced storage modulus 1.62 GPa approximately 0.26 at 35 °C, attributed structural softening. These improvements suggest -doped is suitable applications requiring conductive REPT, low modulus, stability, energy dissipation capabilities.

Language: Английский

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Stretchable, Self-Healable, and Durable Conductive Elastomer Derived from a Rationally Designed Covalently Cross-Linked Network

ACS Applied Materials & Interfaces, Journal Year: 2025, Volume and Issue: 17(2), P. 4165 - 4175

Published: Jan. 7, 2025

Silver nanowire (Ag NW)-based elastic conductors have been considered a promising candidate for key stretchable electrodes in wearable devices. However, the weak interface interaction of Ag NWs and substrates leads to poor durability electronic For everyday usage, an additional self-healing ability is required resist scratching damage. Therefore, robust NW-based possessing stretchability, self-healing, stability are highly desirable challenging. Here, we present universal tailoring strategy that introduces thiols onto dynamically cross-linked substrate surface. The surface thiol groups strongly interact with through Ag–S bonds, forming stable conductive layer on substrate. At elevated temperatures, partially embedded buffer formed release concentrated stress. As result, conductor displays combination good conductivity, high stretchability (>1000%), efficient capability (>95%), remarkable stability. Besides, combining properties mentioned above suitable fabricating sensitive durable strain sensor against cyclic strain. presented can be versatile effective route generating other thiol-rich covalently elastomers dynamic disulfide bonds.

Language: Английский

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Synchronously enhancing fracture toughness and mechanical strength of polyester blend composites via constructing dual-network structures of one-dimensional carbon nanofillers

Polymer, Journal Year: 2025, Volume and Issue: unknown, P. 128242 - 128242

Published: March 1, 2025

Language: Английский

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Critical challenges, future opportunities, life cycle assessments, environmental and health impact and commercialization aspects of additively manufactured functional polymers and nanocomposites

Elsevier eBooks, Journal Year: 2025, Volume and Issue: unknown, P. 691 - 714

Published: Jan. 1, 2025

Language: Английский

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Novel approach of antistatic PET/nano-TiO2 composites via marangoni effect

Colloids and Surfaces A Physicochemical and Engineering Aspects, Journal Year: 2024, Volume and Issue: 708, P. 135966 - 135966

Published: Dec. 11, 2024

Language: Английский

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Nanoscale origin of bilinear stress-strain response of polyethylene terephthalate fiber in tension

Materials Today Communications, Journal Year: 2024, Volume and Issue: unknown, P. 111146 - 111146

Published: Nov. 1, 2024

Language: Английский

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