Dual chemical crosslinking strategy to fabricate lightweight, flame-retardant, high-modulus and hydrophobic cellulose cryogel

Carbohydrate Polymers, Год журнала: 2025, Номер 355, С. 123364 - 123364

Опубликована: Фев. 8, 2025

Язык: Английский

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Robust multi-scale bionic ANF/PMSQ aerogel featuring impact protection, thermal insulation and anti-icing functions

Composites Part B Engineering, Год журнала: 2025, Номер unknown, С. 112304 - 112304

Опубликована: Фев. 1, 2025

Язык: Английский

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Reinforcement Strategies to Improve the Mechanical Properties of Nanofibrous Aerogels: A Review

ACS Applied Nano Materials, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 20, 2024

Nanofibrous aerogels (NFAs) are porous materials with high porosity and extremely low density assembled from lapped nanofibers. As a bridge between the microscopic nanoscale macroscopic world, NFAs have been widely used in related fields such as thermal insulation, separation, energy conversion, tissue engineering. However, severely limited applications due to their inadequate mechanical properties. To ensure structural integrity performance stability of applications, multiple reinforcement strategies usually required endow suitable properties adapted application. In this review, we systematically study research progress on recent years, detailing enhancement four aspects: morphology, microstructure, interactions nanofibers, nanofiber building units, outlining relevant applications. The work aims provide insights into further developing NFAs.

Язык: Английский

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“Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator

Advanced Science, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 29, 2024

Abstract Advanced aerogels hold immense potential in thermal insulation. However, achieving high environmental adaptability aerogel insulators with elasticity, hydrophobicity, flame‐retardancy, and low temperature tolerance remains a significant challenge. Inspired by “brick‐mortar‐binder” biomimetic texture, layered double hydroxide/carboxylated cellulose nanofibers/Si–O–Si (LCS) hybrid is developed bottom‐up freeze‐drying. Owing to the distinct building blocks organized structure, as‐prepared LCS exhibits impressive mechanical cycling stability at an extremely (‐196 °C), flame‐retardancy (LOI = 44.6%, UL‐94: V‐0). Additionally, incorporation of hydroxide effectively improves insulation property (thermal conductivity 0.0296 W·m −1 ·K ). These distinctive features make highly promising for management applications extreme conditions, such as pipelines transporting liquid nitrogen liquefied natural gas.

Язык: Английский

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One-step synthesis of N-doped spider-web-like hyper-cross-linked polymers by a knitting strategy for efficient removal of phenolic pollutants

Separation and Purification Technology, Год журнала: 2025, Номер 361, С. 131445 - 131445

Опубликована: Янв. 5, 2025

Язык: Английский

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Tuning macroporous structure and thermal properties of polymethylsilsesquioxane aerogels via tailored heat treatment

Journal of Non-Crystalline Solids, Год журнала: 2025, Номер 651, С. 123388 - 123388

Опубликована: Янв. 9, 2025

Язык: Английский

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Ultralight and Flexible Subnanowire Aerogels for Intrinsically Hydrophobic Thermal Insulation

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

Опубликована: Янв. 16, 2025

Aerogels are regarded as the next generation of thermal insulators; however, conventional aerogels suffer from issues such brittleness, low moisture resistance, and a complex production process. Subnanowires (SNWs) emerging materials known for their exceptional flexibility, toughness, intrinsic hydrophobicity, gelling capabilities, making them ideal building blocks flexible, tough, hydrophobic, thermally insulating aerogels. Herein, we present simple scalable strategy to construct SNW by freeze-drying hydroxyapatite (HAP) dispersions in cyclohexane. The resulting consist three-dimensional porous flakes composed thin layers bundles. They exhibit numerous outstanding properties, including ultralow density (12.33 mg·cm–3), high porosity (99.15%), remarkable flexibility excellent insulation properties (27.53 mW·m–1·K–1). Because HAP SNWs cores capped with hydrocarbon chains, demonstrate hydrophobicity (138° water contact angle) superior stability compared polymer foams. Furthermore, can effectively shield against infrared radiation due conductivity. This work suggests that serve intrinsically hydrophobic aerogels, paving way future applications insulation.

Язык: Английский

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Hybrid coaxial 3D printing with nested-screw mechanism: Optimizing material integration and structural performance for coaxial designs

Journal of Manufacturing Processes, Год журнала: 2024, Номер 120, С. 517 - 528

Опубликована: Апрель 30, 2024

Язык: Английский

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A critical review of superinsulation performance of ceramic nanofibrous aerogel for extreme conditions: Modeling, fabrication, applications, and outlook

Advances in Colloid and Interface Science, Год журнала: 2024, Номер 335, С. 103352 - 103352

Опубликована: Ноя. 19, 2024

Язык: Английский

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Living electronics in cellulose zoogleal mats

Carbohydrate Polymer Technologies and Applications, Год журнала: 2024, Номер unknown, С. 100627 - 100627

Опубликована: Дек. 1, 2024

Язык: Английский

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