Meniscus‐Inspired Segmented Network Intercalation Strategy: Stiffened yet Toughened Toward Healable Antifouling Materials

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

Published: April 30, 2025

Abstract Healable antifouling materials contribute a paradigm shift for extending marine infrastructure lifespan by forming continuable biofouling barriers. However, achieving sustainable performance in extreme mechanical stresses remains challenging due to the difficulty of integrating stiffness, toughness, and healing with efficacy. Inspired meniscus, which facilitates efficient load absorption distribution ability through remarkable resilience accurate intercalation between thigh calf bones, structural‐bioinspired segmented network strategy is proposed. This approach integrates secondary meniscus‐inspired bisphenol segments into primary, reorganizing rigid phases optimizing crosslinking primary ensure uniform stress dissipation augment molecular dynamism. design yields 212.32% increase Young’ s modulus (362.42 MPa), 55.62% improvement toughness (169.52 MJ m − 3 ), an enhancement self‐healing efficiency from 72.81% 98.75%. establishes new principle durable healable materials, combining enhanced properties resistance against biofouling.

Language: Английский

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Superior Hard yet Flexible, Highly Transparent, and Scratch‐Repairable Waterborne Antiadhesive Coatings Enabled by Multi‐Magnitude Dynamic Bonds Synergy Strategy

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

Published: Dec. 1, 2024

Abstract With the advent and proliferation of foldable displays, demand for hard yet flexible antiadhesive coatings with healability has significantly increased. Unfortunately, reports on such materials are scarce, existing research generally facing challenge reconciling “trade‐off” effect among hardness, flexibility, dynamic performance containing high levels volatile organic compounds which causes irreversible environmental damage. Herein, this study presents a waterborne coating ceramic‐like polymer‐like healability. The is fabricated through multi‐magnitude bond synergy strategy, wherein synthesized amino‐rich oligosiloxane polydimethylsiloxane (PDMS) chains dynamically linked ureidopyrimidinone moieties via coordination reaction between aluminum chloride hexahydrate (AlCl 3 ·6H 2 O) amino, enabling comprising Al─N bonds hierarchical hydrogen bonds. as‐prepared exhibits 99.95% self‐healing efficiency while possessing superior hardness (9H), flexibility (2 mm bending radius), transparency (>99% transmittance). In addition, incorporation PDMS endows excellent properties. More importantly, formulation entirely waterborne, aligning environmentally sustainable practices. This offers valuable insight advancing development well‐balanced comprehensive performance, particularly suited applications in displays other fields.

Language: Английский

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Participation of Polymer Materials in the Structure of Piezoelectric Composites

Polymers, Journal Year: 2024, Volume and Issue: 16(24), P. 3603 - 3603

Published: Dec. 23, 2024

This review explores the integration of polymer materials into piezoelectric composite structures, focusing on their application in sensor technologies, and wearable electronics. Piezoelectric composites combining ceramic phases like BaTiO3, KNN, or PZT with polymers such as PVDF exhibit significant potential due to enhanced flexibility, processability, electrical performance. The synergy between high sensitivity ceramics mechanical flexibility enables development advanced for biomedical devices, energy conversion, smart infrastructure applications. discusses evolution lead-free ceramics, challenges improving polymer–ceramic interfaces, innovations 3D printing surface functionalization, which enhance charge transfer material durability. It also covers effects radiation these materials, particularly nuclear applications, strategies resistance. concludes that play a critical role advancing technologies by addressing environmental functional challenges, paving way future innovations.

Language: Английский

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Poly(3,4-epoxycyclohexylmethyl acrylate) Synthesis and Use in the Preparation of an Exceptionally Hard yet Flexible Organic Polymer Coating

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

Published: Dec. 11, 2024

Despite the commercial availability of 3,4-epoxycyclohexylmethyl acrylate (ECMA), its homopolymerization is not reported. In this study, liquid viscous poly(3,4-epoxycyclohexylmethyl acrylate) (PECMA) synthesized via free radical polymerization and fractionated to obtain samples with varying molecular weights. After casting a cationic photoinitiator photocuring resultant film cross-link epoxide groups ring-opening polymerization, hard solid coating formed. For fully cured coatings, hardness (H) increases weight PECMA. At weight-average (Mw) 14.5 kDa, H value reached 0.78 ± 0.02 GPa, over five times that poly(ethylene terephthalate) (PET) three polystyrene (PS), representing highest reported for an organic material. This exceptional correlates excellent wear resistance, as no tracks are observed after 250 abrasion cycles steel wool under 13 kPa. The also exhibits high transparency, 97% transmittance at 500 nm 50 μm-thick film, remains thermally stable up 300 °C. These properties indicate PECMA holds significant potential diverse applications.

Language: Английский

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Tailored Compositions of Ni-Ti-Sn Nanopowders Deposited on Polymer Fiber Optics Through Flash Evaporation

Journal of Composites Science, Journal Year: 2024, Volume and Issue: 8(12), P. 526 - 526

Published: Dec. 13, 2024

Fiber coatings protect the glass surface of fiber from extrinsic environmental factors. The coating shape memory alloy over is useful in sensor fabrication where state deformation affected by phase transformation coated material. In addition, plastic fibers can be used elevated temperature environments. To this end, present research aims to investigate effect Ni-Ti-Sn composite fiber. Homogeneous particle distribution, agglomeration, porosity and ability obtain uniform thickness have been general concerns coatings. Hence, study comprehensively investigated mechanical thermal behavior as well morphological properties nanopowders deposited on polymer optics. Five sets polyamide-coated samples with different proportions were fabricated characterized. Morphological studies confirmed that an even enhanced integrity optical performance. optimum composition demonstrated superior tensile strength 29.5 MPa a 25% increase elongation compared uncoated sample. promising for industrial applications stability performance are warranted.

Language: Английский

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Self‐Adaptive Zwitterionic Polysilazane Coatings with Mechanical Robustness, High Transparency, and Broad‐Spectrum Antiadhesion Properties

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

Published: Dec. 19, 2024

Antiadhesive coatings have been extensively studied owing to their wide applications in biology, environment, and energy. However, developing a mechanically robust coating with broad-spectrum antiadhesion properties remains challenging. Herein, novel strategy for preparing hard yet flexible self-adaptive zwitterionic polysilazane (anti-biofouling, anti-liquid adhesion, anti-scaling) is proposed. The are prepared by combining telomer (FT) consisting of low-surface-energy fluorine motif hydrolysis-induced zwitterions. Before Si─OH generation polysilazane, the drives precursor enrich on surface, generating layer following pre-hydrolysis. This unique design prevents from swelling water, allowing them adapt diverse environments. can orient toward surface air, providing adhesion capabilities, whereas zwitterions underwater endow anti-biofouling, anti-scaling capabilities. highly cross-linked network toughened FT contributes high hardness (up 7H) good flexibility coating. chemical bonding between substrates ensures strong (≈2.06-7.67 MPa). study antiadhesive applicable marine industries, optical devices, pipeline transportation, other fields.

Language: Английский

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Investigating the effect of cashew nutshell liquid and aluminum powder on the mechanical and thermal properties of epoxy resins

Matéria (Rio de Janeiro), Journal Year: 2024, Volume and Issue: 29(4)

Published: Jan. 1, 2024

Language: Английский

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