Self-healing polyurethane elastomers: An essential review and prospects for future research

European Polymer Journal, Год журнала: 2024, Номер 214, С. 113159 - 113159

Опубликована: Май 22, 2024

Язык: Английский

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Multifunctional waterborne polyurethane-cellulose nanofiber composite: Realizing ultrarobust, photoluminescence and swift self-healing via multi-dynamic bonding

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160302 - 160302

Опубликована: Фев. 1, 2025

Язык: Английский

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Self-healing polyurethane elastomers with dynamic crosslinked networks for complex structure 3D printing

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160193 - 160193

Опубликована: Фев. 1, 2025

Язык: Английский

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A Visible Light-Responsive, Fast Room-Temperature Self- Healing, Mechanically Robust, Antibacterial Waterborne Polyurethane Based on Triple Dynamic Bonds

ACS Applied Materials & Interfaces, Год журнала: 2025, Номер unknown

Опубликована: Март 20, 2025

Despite the recent rapid advancements in room-temperature self-healing waterborne polyurethanes, imparting fast ability while concurrently maintaining robust mechanical performance of polyurethanes remains a formidable challenge. Herein, we propose molecular structure design strategy for developing visible light-responsive, self-healing, and antibacterial polyurethane (DMZWPU) containing triple dynamic bonds diselenide bonds, multiple hydrogen Zn(II)–carboxylate coordination bonds. This innovative approach effectively balances tensile stress, fracture toughness, material. Thanks to synergy three resulting DMZWPU film demonstrates stress 40.32 MPa toughness 119.29 MJ/m3, respectively. Furthermore, based on characteristics dual induction trace ethanol light, damaged can recover more than 85% at room temperature within 2 h. These performances outperform those most currently reported self-healable polymers (healing efficiency >80%). Due combined action selenium zinc ions, DWZWPU exhibits excellent properties (sterilization rate 100% 24 h). Finally, emulsion is applied leather finishing processes, results show that coating folding resistance, wear function, as well enhanced water resistance dry friction resistance. In summary, this study provides novel perspective development with high temperature.

Язык: Английский

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Research Status of Lignin-Based Polyurethane and Its Application in Flexible Electronics

Polymers, Год журнала: 2024, Номер 16(16), С. 2340 - 2340

Опубликована: Авг. 19, 2024

Polyurethanes (PU) have drawn great attention due to their excellent mechanical properties and self-healing recyclable abilities. Lignin is a natural renewable raw material in nature, composed of large number hydroxyl groups, has potential replace petroleum polyols PU synthesis. This review summarizes the recent advances modification methods such as liquefaction, alkylation, demethylation lignin, systematic analysis how improve reactivity monomer substitution lignin during polyurethane synthesis for green manufacturing high-performance polyurethanes was conducted. Polyurethane can be used form films, foams, elastomers instead conventional materials dielectric or substrate reliability durability flexible sensors; this applications electronics, which are expected provide inspiration wearable electronics sector.

Язык: Английский

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A Novel Polyurethane Microcapsule Coated with Polyacrylamide Using D-Sorbitol as Chain Extender for Enhanced Oil Recovery

Опубликована: Янв. 1, 2025

Polyacrylamide(PAM) is a common oil flooding agent with excellent thickening ability. However, the application of PAM faces challenge viscosity loss during formation transportation and cannot meet expectations recovery in fields. To solve this problem, polyurethane was selected for microencapsulation through simple emulsion polymerization method work. It worth mentioning that non-toxic renewable D-sorbitol used as chain extender synthesis microcapsules instead commonly diols or diamines obtained from non-renewable petroleum resources, which has not been reported previous reports. Mechanical stirring to simulate state polymer subjected shear stratigraphic transport. The releasing performance characterized by measuring change time. Meanwhile, we optimized ratio achieve longest release Experiments showed feasible preparation polyurethane, prepared at concentration 8% solution had slow-release time 75 h 25 oC 500 rpm. We also samples BDO comparison, experiments SO8 longer can better demand. exhibited resistance heat resistance, attributed rigidity high cross-linking density brought about hard segment polyurethane. These PAM-containing promising enhancing recovery.

Язык: Английский

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Mechanism model of dynamic polyurethanes with two scales of nodes to regulate mechanical property

Materials & Design, Год журнала: 2025, Номер 250, С. 113611 - 113611

Опубликована: Янв. 15, 2025

Язык: Английский

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Sustainable photothermal-responsive anti-corrosion nanocomposite coating with distinguished self-healing performance and ultrahigh mechanical properties

Progress in Organic Coatings, Год журнала: 2025, Номер 200, С. 109070 - 109070

Опубликована: Янв. 19, 2025

Язык: Английский

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High-Durability Cellulose-Based Composite Paper with Superior Electromagnetic Interference Shielding

Biomacromolecules, Год журнала: 2025, Номер unknown

Опубликована: Фев. 2, 2025

Highly efficient electromagnetic interference (EMI) shielding materials are critical for portable hardware and flexible electronics, where mechanical durability often poses challenges. Here, the excellent wear resistance flexibility of thermoplastic polyurethane utilized to provide a "protective layer" EMI equipment. A carbon nanotube/cellulose/thermoplastic (CNT/paper/TPU) composite paper with three-layer structure was prepared using coating method. Strong hydrogen bonds between CNTs, cellulose, TPU ensured robust integration. The composite, thickness 0.54 mm conductivity 1040 S/m, achieved exceptional effectiveness 69.0 dB. It demonstrated against water, solvents, bending, friction while maintaining performance. Furthermore, its properties fatigue significantly enhance equipment lifespan. Therefore, it is expected that this work will open simple strategy developing durable properties.

Язык: Английский

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Self‐healing and shape memory functions in elastomers: Recent advances and future prospectives

Polymer Engineering and Science, Год журнала: 2025, Номер unknown

Опубликована: Фев. 12, 2025

Abstract Shape memory‐assisted self‐healing behavior can be identified by their ability to deform and recover shape under external stimuli applied force complemented spontaneous repairing of damages, extending the materials' performance service life. This review article aims provide new ideas develop memory functions in elastomeric materials using different dynamic reversible crosslinking methods such as non‐covalent covalent interactions. The thermodynamic kinetic perspectives elastomers are highlighted. recent development with enlightening quantification approach effect is provided. Finally, future prospectives critically discussed stimulate potential research this area. Highlights explored. possible interactions presented. Thermodynamics kinetics

Язык: Английский

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