“Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator
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 a “brick‐mortar‐binder” biomime...
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| Format: | Article |
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Wiley
2025-01-01
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| Series: | Advanced Science |
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| Online Access: | https://doi.org/10.1002/advs.202410938 |
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| author | Shanying Sui Huafeng Quan Jingxing Wang Yufang Lu Yufan Yang Yuhan Sheng Zhifang Sun Yi Zhang |
| author_facet | Shanying Sui Huafeng Quan Jingxing Wang Yufang Lu Yufan Yang Yuhan Sheng Zhifang Sun Yi Zhang |
| author_sort | Shanying Sui |
| collection | DOAJ |
| description | 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 a “brick‐mortar‐binder” biomimetic texture, a layered double hydroxide/carboxylated cellulose nanofibers/Si–O–Si (LCS) hybrid aerogel is developed by bottom‐up freeze‐drying. Owing to the distinct building blocks and organized structure, as‐prepared LCS hybrid aerogel exhibits impressive mechanical elasticity, cycling stability at an extremely low temperature (‐196 °C), hydrophobicity, and flame‐retardancy (LOI = 44.6%, UL‐94: V‐0). Additionally, the incorporation of layered double hydroxide effectively improves the thermal insulation property (thermal conductivity = 0.0296 W·m−1·K−1). These distinctive features make the LCS hybrid aerogel highly promising for thermal management applications in extreme conditions, such as in pipelines for transporting liquid nitrogen and liquefied natural gas. |
| format | Article |
| id | doaj-art-7c9990cfcc8f41b282f1ce04d3dfd3d9 |
| institution | Kabale University |
| issn | 2198-3844 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advanced Science |
| spelling | doaj-art-7c9990cfcc8f41b282f1ce04d3dfd3d92025-01-29T09:50:18ZengWileyAdvanced Science2198-38442025-01-01124n/an/a10.1002/advs.202410938“Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal InsulatorShanying Sui0Huafeng Quan1Jingxing Wang2Yufang Lu3Yufan Yang4Yuhan Sheng5Zhifang Sun6Yi Zhang7Hunan Provincial Key Laboratory of Micro & Nano Materials Interface Science College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. ChinaCollege of Materials Science and Engineering Hunan Province Key Laboratory for Advanced Carbon Materials and Applied Technology Hunan University Changsha 410082 P. R. ChinaHunan Provincial Key Laboratory of Micro & Nano Materials Interface Science College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. ChinaHunan Provincial Key Laboratory of Micro & Nano Materials Interface Science College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. ChinaHunan Provincial Key Laboratory of Micro & Nano Materials Interface Science College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. ChinaHunan Provincial Key Laboratory of Micro & Nano Materials Interface Science College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. ChinaSchool of Materials Science and Engineering Xiangtan University Xiangtan Hunan 411105 P. R. ChinaHunan Provincial Key Laboratory of Micro & Nano Materials Interface Science College of Chemistry and Chemical Engineering Central South University Changsha 410083 P. R. ChinaAbstract 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 a “brick‐mortar‐binder” biomimetic texture, a layered double hydroxide/carboxylated cellulose nanofibers/Si–O–Si (LCS) hybrid aerogel is developed by bottom‐up freeze‐drying. Owing to the distinct building blocks and organized structure, as‐prepared LCS hybrid aerogel exhibits impressive mechanical elasticity, cycling stability at an extremely low temperature (‐196 °C), hydrophobicity, and flame‐retardancy (LOI = 44.6%, UL‐94: V‐0). Additionally, the incorporation of layered double hydroxide effectively improves the thermal insulation property (thermal conductivity = 0.0296 W·m−1·K−1). These distinctive features make the LCS hybrid aerogel highly promising for thermal management applications in extreme conditions, such as in pipelines for transporting liquid nitrogen and liquefied natural gas.https://doi.org/10.1002/advs.202410938aerogelselasticityflame‐retardancyhydrophobicitythermal insulation |
| spellingShingle | Shanying Sui Huafeng Quan Jingxing Wang Yufang Lu Yufan Yang Yuhan Sheng Zhifang Sun Yi Zhang “Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator Advanced Science aerogels elasticity flame‐retardancy hydrophobicity thermal insulation |
| title | “Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator |
| title_full | “Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator |
| title_fullStr | “Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator |
| title_full_unstemmed | “Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator |
| title_short | “Brick‐Mortar‐Binder” Design toward Highly Elastic, Hydrophobic, and Flame‐Retardant Thermal Insulator |
| title_sort | brick mortar binder design toward highly elastic hydrophobic and flame retardant thermal insulator |
| topic | aerogels elasticity flame‐retardancy hydrophobicity thermal insulation |
| url | https://doi.org/10.1002/advs.202410938 |
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