Two-step method to realize continuous multi-wall carbon nanotube grafted on the fibers to improve the interface of carbon fibers/epoxy resin composites based on the Diels-Alder reaction

Carbon, Год журнала: 2023, Номер 212, С. 118131 - 118131

Опубликована: Май 24, 2023

Язык: Английский

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Development of injectable in situ hydrogels based on hyaluronic acid via Diels-Alder reaction for their antitumor activities studies

International Journal of Biological Macromolecules, Год журнала: 2024, Номер 262, С. 129642 - 129642

Опубликована: Янв. 23, 2024

Язык: Английский

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Lignin self-healing coatings based on thermo-reversible Diels-Alder reaction for anticorrosion applications

Progress in Organic Coatings, Год журнала: 2024, Номер 191, С. 108428 - 108428

Опубликована: Апрель 19, 2024

Язык: Английский

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Dynamic Interfaces in Self-Healable Polymers

Langmuir, Год журнала: 2024, Номер 40(14), С. 7268 - 7285

Опубликована: Фев. 23, 2024

It is well-established that interfaces play critical roles in biological and synthetic processes. Aside from significant practical applications, the most accessible measurable quantity interfacial tension, which represents a measure of energy required to create or rejoin two surfaces. Owing fact processes are polymeric materials, this review outlines recent advances dynamic involving physics chemistry targeting self-healing. Entropic energies stored during damage participate recovery, self-healing depends upon copolymer composition monomer sequence, molar ratios, molecular weight, polymer dispersity. These properties ultimately impact chain flexibility, shape-memory interactions. Self-healing localized process with global implications on mechanical other properties. Selected examples driven by flow shape memory effects discussed context covalent supramolecular rebonding self-healable materials development.

Язык: Английский

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Colorable photothermal-induced self-repairing anti-corrosion coating based on confined solid-liquid transition

Journal of Material Science and Technology, Год журнала: 2024, Номер 197, С. 227 - 237

Опубликована: Март 28, 2024

Язык: Английский

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Closed-loop recyclable polymers: from monomer and polymer design to the polymerization–depolymerization cycle

Chemical Society Reviews, Год журнала: 2024, Номер 53(19), С. 9609 - 9651

Опубликована: Янв. 1, 2024

We present the state-of-the-art of circular polymers based on monomer and polymer design reversible ring-opening addition polymerization reactions without involvement other reactants.

Язык: Английский

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Extraction and incorporation of cellulose microfibers from textile wastes into MXene-enhanced PVA-borax hydrogel for multifunctional wearable sensors

International Journal of Biological Macromolecules, Год журнала: 2025, Номер 295, С. 139640 - 139640

Опубликована: Янв. 7, 2025

Язык: Английский

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Tuning the Compatibilizer Content and Healing Temperature in Thermally Mendable Polyamide 6/Cyclic Olefin Copolymer Blends

Polymers, Год журнала: 2025, Номер 17(3), С. 280 - 280

Опубликована: Янв. 22, 2025

This study presents the formulation and comprehensive characterization of compatibilized polyamide 6 (PA6)/cyclic olefin copolymer (COC) blends with aim developing a self-healing matrix for thermoplastic structural composites. Rheological analysis highlighted compatibilizing effect ethylene glycidyl methacrylate (E-GMA), as evidenced by an increase in viscosity, melt strength (MS), breaking stretching ratio (BSR), thus improving processability during film extrusion. E-GMA also decreased COC domain size improved interfacial interaction PA6, which was at basis higher tensile strain break compared to neat PA6/COC blends. significantly boosted healing efficiency (HE), measured via fracture toughness tests quasi-static impact conditions. The optimal temperature identified 160 °C, associated HE 38% mode 82% content 5 wt% (PA6COC_5E-GMA). under conditions attributed planar surface, facilitated flow agent crack zone, proven fractography analysis. work demonstrates potential fine-tuning thermomechanical properties PA6COC_5E-GMA emerged best balance between efficiency, paving way advanced multifunctional composites applications.

Язык: Английский

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Polypropylene Covalent Adaptable Networks with Full Cross-Link Density Recovery after Reprocessing: Development by Free-Radical Reactive Processing with Resonance-Stabilized, Aromatic Disulfide Cross-Linkers

ACS Macro Letters, Год журнала: 2025, Номер unknown, С. 341 - 348

Опубликована: Март 5, 2025

A single-step method that produces percolated, dynamic covalent cross-links integrated into the PP homopolymer has not been previously demonstrated. Here, we synthesized adaptable networks (CANs) from polypropylene (PP) homopolymers using 180 °C, radical-based, reactive processing with a free-radical initiator, dicumyl peroxide (DCP), and resonance-stabilized, aromatic disulfide cross-linkers, one methacrylate-based another phenyl acrylate-based. Both cross-linkers yielded when reactively processed at 4 wt % relatively high molecular weight (MW) (melt flow index (MFI) = 12) DCP. The acrylate-based cross-linker also other studied DCP/cross-linker concentrations low MW (MFI 35). Notably, our highest cross-link density CAN exhibited full recovery of after three reprocessing steps by compression molding; within experimental uncertainty melt extrusion.

Язык: Английский

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Surface Modification of Transition Metal Dichalcogenide Nanosheets for Intrinsically Self‐Healing Hydrogels with Enhanced Mechanical Properties

Small, Год журнала: 2023, Номер 19(22)

Опубликована: Март 1, 2023

Nanocomposites with enhanced mechanical properties and efficient self-healing characteristics can change how the artificially engineered materials' life cycle is perceived. Improved adhesion of nanomaterials host matrix drastically improve structural confer material repeatable bonding/debonding capabilities. In this work, exfoliated 2H-WS2 nanosheets are modified using an organic thiol to impart hydrogen bonding sites on otherwise inert by surface functionalization. These incorporated within PVA hydrogel analyzed for their contribution composite's intrinsic strength. The resulting forms a highly flexible macrostructure impressive enhancement in very high autonomous healing efficiency 89.92%. Interesting changes after functionalization show that such modification suitable water-based polymeric systems. Probing into mechanism advanced spectroscopic techniques reveals formation stable cyclic structure nanosheets, mainly responsible improved response. This work opens avenue toward development nanocomposites where chemically nanoparticles participate network rather than just mechanically reinforcing slender adhesion.

Язык: Английский

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