Ultrarobust, tough and highly stretchable self-healing materials based on cartilage-inspired noncovalent assembly nanostructure

Nature Communications, Год журнала: 2021, Номер 12(1)

Опубликована: Фев. 26, 2021

Self-healing materials integrated with excellent mechanical strength and simultaneously high healing efficiency would be of great use in many fields, however their fabrication has been proven extremely challenging. Here, inspired by biological cartilage, we present an ultrarobust self-healing material incorporating density noncovalent bonds at the interfaces between dentritic tannic acid-modified tungsten disulfide nanosheets polyurethane matrix to collectively produce a strong interfacial interaction. The resultant nanocomposite interwoven network shows tensile (52.3 MPa), toughness (282.7 MJ m‒3, which is 1.6 times higher than spider silk 9.4 metallic aluminum), stretchability (1020.8%) (80–100%), overturns previous understanding traditional bonding where robustness ability are mutually exclusive. Moreover, interfacical supramolecular crosslinking structure enables functional-healing flexible smart actuation devices. This work opens avenue toward development for various functional Strong fields but authors robust

Язык: Английский

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Tannic acid: a crosslinker leading to versatile functional polymeric networks: a review

RSC Advances, Год журнала: 2022, Номер 12(13), С. 7689 - 7711

Опубликована: Янв. 1, 2022

With the thriving of mussel-inspired chemistry and demand for low-cost analogues to polydopamine in adhesive design, tannic acid has become a research focus because its wide availability, health benefits special chemical properties.

Язык: Английский

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A Solvent Regulated Hydrogen Bond Crosslinking Strategy to Prepare Robust Hydrogel Paint for Oil/Water Separation

Advanced Functional Materials, Год журнала: 2021, Номер 31(49)

Опубликована: Сен. 5, 2021

Abstract Hydrogel modified porous matrix with the super‐wetting surface (i.e., super‐hydrophilic/underwater super‐oleophobic) is ideal for oil/water separation. However, deterioration in mechanical strength and separation efficiency during swelling process complicated synthesis procedure limits its industrial application. In this study, a strategy of using ethanol to dynamically regulate hydrogen bond crosslinking between polyvinyl alcohol (PVA) tannic acid (TA) proposed prepare “hydrogel paint”, which can be simply applied on substrate by different one‐step operations (dipping, brushing, spraying, etc.) without additional cross‐linking. The underline mechanism attributed re‐establishment intermolecular mediated cross‐linking PVA TA evaporation. Consequently, resultant hydrogel coating exhibits ultra‐high (>10 MPa), volume stability, excellent oil‐water (>99%). This study will provide new insights into scalable fabrication hydrogel‐coated materials scenarios.

Язык: Английский

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Tannic Acid–Silver Dual Catalysis Induced Rapid Polymerization of Conductive Hydrogel Sensors with Excellent Stretchability, Self-Adhesion, and Strain-Sensitivity Properties

ACS Applied Materials & Interfaces, Год журнала: 2020, Номер 12(50), С. 56509 - 56521

Опубликована: Дек. 3, 2020

The application of conductive hydrogels in intelligent biomimetic electronics is a hot topic recent years, but it still great challenge to develop the through rapid fabrication process at ambient temperature. In this work, versatile poly(acrylamide) @cellulose nanocrystal/tannic acid–silver nanocomposite (NC) hydrogel integrated with excellent stretchability, repeatable self-adhesion, high strain sensitivity, and antibacterial property, was synthesized via radical polymerization within 30 s Notably, realized tannic (TA-Ag) mediated dynamic catalysis system that capable activating ammonium persulfate then initiated free-radical acrylamide monomer. Benefiting from incorporation TA-Ag metal ion nanocomplexes cellulose nanocrystals, which acted as connecting bridges by hydrogen bonds efficiently dissipate energy, obtained NC exhibited prominent tensile (up 4000%), flexibility, self-recovery, antifatigue properties. addition, showed adhesiveness different substrates (e.g., glass, wood, bone, metal, skin) significant properties, were merits for be assembled into flexible epidermal sensor long-term human–machine interfacial contact without concerns about use external adhesive tapes bacterial breeding. Moreover, remarkable conductivity (σ ∼ 5.6 ms cm–1) sensitivity (gauge factor = 1.02) allowed sensors monitor various human motions real time, including huge movement deformations wrist, elbow, neck, shoulder) subtle motions. It envisioned work would provide promising strategy preparation electronic skin, biomedical devices, soft robotics.

Язык: Английский

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Chemical syntheses of bioinspired and biomimetic polymers toward biobased materials

Nature Reviews Chemistry, Год журнала: 2021, Номер 5(11), С. 753 - 772

Опубликована: Окт. 5, 2021

Язык: Английский

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Intelligent lubricating materials: A review

Composites Part B Engineering, Год журнала: 2020, Номер 202, С. 108450 - 108450

Опубликована: Окт. 3, 2020

Язык: Английский

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High performance, environmentally friendly and sustainable nanofiber membrane filter for removal of particulate matter 1.0

Journal of Colloid and Interface Science, Год журнала: 2021, Номер 597, С. 48 - 55

Опубликована: Апрель 1, 2021

Язык: Английский

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Dynamic Nanoconfinement Enabled Highly Stretchable and Supratough Polymeric Materials with Desirable Healability and Biocompatibility

Advanced Materials, Год журнала: 2021, Номер 33(51)

Опубликована: Окт. 4, 2021

Abstract Lightweight polymeric materials are highly attractive platforms for many potential industrial applications in aerospace, soft robots, and biological engineering fields. For these real‐world applications, it is vital them to exhibit a desirable combination of great toughness, large ductility, high strength together with desired healability biocompatibility. However, existing material design strategies usually fail achieve such performance portfolio owing their different even mutually exclusive governing mechanisms. To overcome hurdles, herein, the first time dynamic hydrogen‐bonded nanoconfinement concept proposed, stretchable supratough biocompatible poly(vinyl alcohol) (PVA) well‐dispersed phases induced by hydrogen‐bond (H‐bond) crosslinking demonstrated. Because H‐bond nanoconfinement, as‐prepared PVA nanocomposite film exhibits world‐record toughness 425 ± 31 MJ m −3 tensile 98 MPa break strain 550%, representing best its kind outperforming most natural artificial materials. In addition, final polymer good self‐healing ability This work affords new opportunities creating mechanically robust, healable, materials, which hold promise as robots ligaments.

Язык: Английский

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Engineering of Chain Rigidity and Hydrogen Bond Cross‐Linking toward Ultra‐Strong, Healable, Recyclable, and Water‐Resistant Elastomers

Advanced Materials, Год журнала: 2023, Номер 35(21)

Опубликована: Фев. 28, 2023

High-performance elastomers have gained significant interest because of their wide applications in industry and our daily life. However, it remains a great challenge to fabricate simultaneously integrating ultra-high mechanical strength, toughness, excellent healing recycling capacities. In this study, ultra-strong, healable, recyclable are fabricated by dynamically cross-linking copolymers composed rigid polyimide (PI) segments soft poly(urea-urethane) (PUU) with hydrogen bonds. The elastomers, which denoted as PIPUU, record-high tensile strength ≈142 MPa an extremely high toughness ≈527 MJ m-3 . structure the PIPUU elastomer contains hydrogen-bond-cross-linked elastic matrix homogenously dispersed nanostructures. PI self-assemble generate phase-separated nanostructures that serve nanofillers significantly strengthen elastomers. Meanwhile, is PUU cross-linked reversible bonds, largely enhance elastomer. can be healed recycled restore original strength. Moreover, performance hydrophobic segments, scratch-, puncture-, water-resistant.

Язык: Английский

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Strong and Tough Supramolecular Covalent Adaptable Networks with Room‐Temperature Closed‐Loop Recyclability

Advanced Materials, Год журнала: 2022, Номер 35(7)

Опубликована: Ноя. 11, 2022

Development of closed-loop chemically recyclable plastics (CCRPs) that can be widely used in daily life a fundamental solution to the global plastic waste crisis. Hence, it is great significance develop easy-to-recycle CCRPs possess superior or comparable material properties commodity plastics. Here, novel dual crosslinked CCRP, namely, supramolecular covalent adaptable networks (supra-CANs), reported, which not only displays mechanical higher than strong and tough polycarbonate, but also exhibits excellent solvent resistance as thermosets. The supra-CANs are constructed by introducing reversible noncovalent crosslinks into dynamic polymer networks, resulting highly stiff thermosets exhibit thermoplastic-like ductile behaviors well reprocessability rehealability. In contrast, analogs do have (CANs) show elastomeric with significantly decreased strength. Importantly, developed CANs converted back initial monomers high yields purity at room temperature, even additives, enables sustainable polymer-monomer-polymer circulation. This work provides new design principles for high-performance polymers substitutes conventional

Язык: Английский

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