Super-Robust Mechanical and Self-Healing Properties of Waterborne Polyurethane Composites DOI
Wenqing Xu,

Ruixian Dai,

Meng Wang

et al.

Macromolecules, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 19, 2024

Waterborne polyurethane (WPU) with self-healing properties is highly desirable for sustainable development. However, balancing the mechanical and of WPU challenging. In this study, ultrahigh performance was simultaneously achieved by introducing dopamine-modified iron-oxide nanoparticles (Fe3O4@DA NPs) to a matrix consisting soft poly(tetramethylene ether) glycol segments hard isoforone diisocyanate dimethylolpropionic acid segments. Consequently, tensile strength toughness WPU/Fe3O4@DA composite increased 63.6 MPa 179.35 MJ·m–3, respectively; these values correspond improvements 276% 403% over those pure (16.9 44.50 respectively). The proposed also exhibited excellent ability at room temperature; that is, stress strain efficiencies after 6 h 60 °C 93.5% 100%, respectively. This because Fe3O4@DA NPs, which acted as reinforcing fillers, interacted strongly via covalent reaction DA amine groups WPU-matrix isocyanate groups, remarkably enhancing properties. Moreover, catechol–Fe(III) coordination bonds formed between Fe3O4 promoted relaxation behavior and, thus, enhanced efficiency. approach presented in study constitutes an effective strategy developing efficient polymer high strength, can endow coatings adhesives long service life severe environments.

Language: Английский

High-Strength and Excellent Self-Healing Polyurethane Elastomer Based on Rigid Chain Segment Reinforcement DOI
Li-Quan Huang,

Hua-Xin Huang,

Ning Yu

et al.

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 24, 2025

Owing to their extensive application scope, elastomers that combine high strength and excellent self-healing efficiency have always attracted significant attention are still a contradiction. In this study, novel PU elastomer was prepared by combining rigid poly(amic acid) (PAA) chain segments 3,3-dithiodipropionic dihydrazide (DPH) containing sextuple hydrogen-bonding units disulfide bonds. The exhibited tensile of 50.1 MPa toughness 144.2 MJ/m3. PAA serve as framework, significantly enhancing the mechanical elastomer. Meanwhile, DPH with bonds enabled exhibit an 96.1% after 12 h at 80 °C. Additionally, strong reversible cross-linking arrays in endows it strength, ability, recyclability, allowing be recycled hot pressing dissolution.

Language: Английский

Citations

4
Fabrication of Mechanical Strong Supramolecular Waterborne Polyurethane Elastomers With the Inspiration of Hierarchical Dynamic Structures of Scallop Byssal Threads DOI
Mingguang Zhang, Yining Wang,

Minghang Yang

et al.

Advanced Functional Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 16, 2024

Abstract Advancing the development of eco‐friendly waterborne polyurethane elastomers (WPUEs) can significantly reduce reliance on organic solvents, which is crucial for environmental conservation. Nevertheless, achieving superior mechanical properties and self‐healing capabilities in WPUEs presents a considerable challenge. Drawing inspiration from hierarchical dynamic structures observed scallop byssal threads, high‐strength supramolecular elastomer (SWPUE), designated SWPU‐DESH‐Zn, developed this study. Owing to precise regulation hydrogen bonding state acylsemicarbazide (ASC) fragments via disulfide bonds, formation coordination interactions between carboxyl zinc ions, as‐prepared exhibited robust strength 52.07 MPa, comparable that solvent‐based elastomers. Additionally, it notable capability excellent reprocessability. Meanwhile, high‐performance ionic skins electromagnetic interference (EMI) shielding materials are also fabricated using SWPU‐DESH‐Zn as matrix, further illustrating its potential applications. This novel biomimetic approach, inspired by offers valuable insights designing healable polymers with enhanced properties.

Language: Английский

Citations

14
Ionic conductive elastomer with enhanced tensile strength and Skin-Like modulus for artificial skin based on dynamic Polyurethane-urea DOI
Xingyuan Lu, Dianheng Lu,

Liqiang Xu

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: 505, P. 159292 - 159292

Published: Jan. 6, 2025

Language: Английский

Citations

1
Mechanically Robust, Reprocessable, and Light-Controlled Healable Solvent-Free Lignin-Containing Polyurethane Elastomers Based on Dynamic Phenol-Carbamate Network DOI
Peng Jin, Haixu Wang, Shusheng Chen

et al.

Macromolecules, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 9, 2025

In this study, we introduce an innovative one-step, solvent-free approach for preparing lignin-containing polyurethane elastomers (LPUes) with nanomicro phase-separated structure and dynamic dual-cross-linking networks comprising both phenol-carbamate bonds (PCBs) hydrogen bonds. This distinctive structural design imparted exceptional mechanical properties to the LPUes. The sample containing 22.9 wt % phenolized lignin exhibited tensile strength of 44.6 MPa, elongation at break 714.6%, toughness 148.0 MJ/m3. abundance PCBs also conferred remarkable reprocessing capabilities, these LPUes retaining over 98% 94.4% after two hot-pressing cycles. Moreover, incorporation endowed photothermal properties, facilitating efficient light-controlled self-healing shape-memory functionalities. work offers pathway harmonize thermal adaptability in development sustainable high-performance LPUes, thereby opening their avenues diverse potential applications.

Language: Английский

Citations

1
Strain sensing behavior of conductive polymer composites under corrosion fatigue DOI

Zhi Wu,

Enrico Zappino, Jianying Hu

et al.

International Journal of Mechanical Sciences, Journal Year: 2025, Volume and Issue: 288, P. 110034 - 110034

Published: Jan. 31, 2025

Language: Английский

Citations

1
Ultra-Stretchable, Tough, and Self-Healing Polyurethane with Tunable Microphase Separation for Flexible Wearable Electronics DOI

Yushu Tian,

Yi Wei,

Min Wang

et al.

Nano Energy, Journal Year: 2025, Volume and Issue: unknown, P. 110908 - 110908

Published: March 1, 2025

Language: Английский

Citations

1
Tensegrity-inspired polymer films: progressive bending stiffness through multipolymeric patterning DOI Creative Commons
Rikima Kuwada, Shuto Ito,

Yuta Shimoda

et al.

Polymer Journal, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 27, 2025

Language: Английский

Citations

0
Pangolin Scale Inspired Healable, Recyclable, and Mechanically Robust Supramolecular Waterborne Polymer Networks DOI Open Access
Mingguang Zhang, Yuxi Pan, Yining Wang

et al.

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

Published: March 31, 2025

Abstract Although healable waterborne polymers have attracted significant attention in recent years due to their environmentally friendly properties, the inferior mechanical properties still hinder further propagation. Inspired by micro‐structure of pangolin scales, herein, a novel supramolecular polymer network (SWPN) named SWPUMA‐SPPEK10 is proposed this study. This fabricated complexing sulfonated poly(phthalazinone ether ketone) (SPPEK) with acylsemicarbazide (ASC) containing cationic polyurethane (SWPUMA) an aqueous solution followed hot‐pressing process. Due synergistic effects ASC, electrostatic interactions, and SPPEK nanoparticles, exhibited remarkable tensile strength 55.19 MPa, toughness 305.93 MJ m −3 . The rich dynamic interactions within chains also imparted it excellent healability recyclability. biomimetic structural design provides new insight for constructing high‐performance robust recyclability, which may play critical role mitigating global environmental pollution.

Language: Английский

Citations

0
Liquid Metal-Promoted Supramolecular Interactions Enable Ultrafast Self-Healing Triboelectric Materials with High Performance at Room Temperature DOI

Weiqing Peng,

Ye Zhang, Zhijun Zhang

et al.

Nano Letters, Journal Year: 2025, Volume and Issue: unknown

Published: April 10, 2025

Soft self-healing materials are excellent candidates for wearable devices to power sensors due their compliance, extensibility, and self-restorability. However, combining ultrafast autonomous restorative properties with mechanical capabilities application in self-powered device still poses challenges. Utilizing the high mobility conductivity of liquid metal, this paper incorporates it into polydimethylsiloxane by a supramolecular interfacial assembly strategy prepare triboelectric material ultrahigh stretchability (12000%) remarkable (30 min at ∼25 °C). The dynamic bonds endow universal ability under extreme environments (-20 °C, near infrared, underwater), durability, (100 V 0.81 W/m2). By integrating devices, real-time feedback on human joint movement is enabled. This work offers valuable balance trade-off between shape adaptation self-healing, paving way enhanced applicability sensing applications.

Language: Английский

Citations

0
Conductive elastomers with high strain-stiffening capability for flexible electronic applications DOI

Jianbing Cui,

Jiahua Zhou, Tatsuo Kaneko

et al.

Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159703 - 159703

Published: Jan. 1, 2025

Language: Английский

Citations

0