Nanoporous/nanofibrous dual-aerogel ultraflexible ceramic coatings for fire superprotection

IF 21.8 2区材料科学 Q1 MATERIALS SCIENCE, COMPOSITES

Advanced Composites and Hybrid Materials Pub Date : 2025-08-08 DOI:10.1007/s42114-025-01416-9

Cong Li, Dizhou Liu, Hongxuan Yu, Han Zhao, Jingran Guo, Chuanyun Song, Yingde Zhao, Jianing Zhang, Yuanpeng Deng, Shixuan Dang, Duola Wang, Jiali Chen, Zhengli Yan, Tiande Lin, Hui Li, Xiang Xu

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引用次数: 0

Abstract

Advanced fire protection for infrastructures and facilities requires fireproof coatings that can possess high fire resistance, thermal insulation, flexibility, and durability. Conventional coatings are usually developed by composing inorganic fillers and organic binders, still suffering from limited fireproof effect, severe fracture, and short working life. Here, we report a dual-aerogel design of robust aluminosilicate ceramic coating with natural-dried nanoporous aerogel for thermal insulation and electro-spun nanofibrous aerogel for flexible deformation. The resulting coating, with a thickness of only 3 mm, exhibits a fire superprotection performance with fire resistance up to 1400 °C, thermal conductivity of only 103.55 mW·m⁻¹·K⁻¹ at 1000 °C, hydrophobicity of contact angle up to 154°, and ultraflexibility of a 90° bending angle with 10,000 times of fatigue resistance. This unique dual-aerogel design can well resolve the formidable thermal–mechanical trade-off in fireproof coatings and establish a set of fundamental considerations in material design for fire superprotection.

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纳米多孔/纳米纤维双气凝胶超柔陶瓷防火涂料

先进的基础设施和设施防火要求防火涂料具有较高的耐火性、绝热性、柔韧性和耐久性。传统涂料通常由无机填料和有机粘结剂组成，但防火效果有限，断裂严重，使用寿命短。在这里，我们报告了一种坚固的铝硅酸盐陶瓷涂层的双气凝胶设计，其中天然干燥的纳米多孔气凝胶用于隔热，电纺纳米纤维气凝胶用于柔性变形。所制备的涂层厚度仅为3 mm，具有防火超防护性能，耐火性可达1400℃，1000℃时导热系数仅为103.55 mW·m−1·K−1，接触角疏水性可达154°，90°弯曲角的超柔韧性可达10,000倍的抗疲劳性能。这种独特的双气凝胶设计可以很好地解决防火涂料中棘手的热力学权衡问题，并在防火超级防护材料设计中建立一套基本考虑因素。

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来源期刊

Advanced Composites and Hybrid Materials Multiple-

CiteScore

26.00

自引率

21.40%

发文量

185

期刊介绍： Advanced Composites and Hybrid Materials is a leading international journal that promotes interdisciplinary collaboration among materials scientists, engineers, chemists, biologists, and physicists working on composites, including nanocomposites. Our aim is to facilitate rapid scientific communication in this field. The journal publishes high-quality research on various aspects of composite materials, including materials design, surface and interface science/engineering, manufacturing, structure control, property design, device fabrication, and other applications. We also welcome simulation and modeling studies that are relevant to composites. Additionally, papers focusing on the relationship between fillers and the matrix are of particular interest. Our scope includes polymer, metal, and ceramic matrices, with a special emphasis on reviews and meta-analyses related to materials selection. We cover a wide range of topics, including transport properties, strategies for controlling interfaces and composition distribution, bottom-up assembly of nanocomposites, highly porous and high-density composites, electronic structure design, materials synergisms, and thermoelectric materials. Advanced Composites and Hybrid Materials follows a rigorous single-blind peer-review process to ensure the quality and integrity of the published work.