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首页> 外文期刊>Journal of Applied Polymer Science >Novel Ti3C2Tx MXene/epoxy intumescent fire-retardant coatings for ancient wooden architectures
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Novel Ti3C2Tx MXene/epoxy intumescent fire-retardant coatings for ancient wooden architectures

机译：新型Ti3C2TX MXEN /环氧膨胀型阻燃涂料，用于古木架构

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摘要

Most of the ancient buildings are made of inflammable wooden structures, which have serious potential safety hazards. Applying fire-retardant coating is one of the simplest and most effective means of fire prevention in ancient wooden buildings. In this work, we have demonstrated that the Ti3C2Tx transition metal carbide/carbonitride (MXene) was applied as the synergetic agent, waterborne epoxy resin as the film-forming agent, ammonium polyphosphate, dipentaerythritol, and melamine (P-C-N system) as the intumescent fire-retardant system to prepare Ti3C2Tx/epoxy intumescent fire-retardant coating (TEIFC). The results showed that MXene has significantly improved the fire-retardant performance of the coating. By incorporating 3 wt% Ti3C2Tx (TEIFC-3, with 62 wt% P-C-N system), the coating displayed UL-94 V-0 rating with the limiting oxygen index value of 38%. In addition, the combination of Ti3C2Tx and P-C-N system enhanced the Shore hardness of the coating to 95 SHD (TEIFC-3). Furthermore, TEIFC-3 presented high thermal stability with the T-HRI of 177.0 degrees C and T-dmax of 380.5 degrees C. This work provides a novel strategy for the design and preparation of intumescent fire-retardant coating, which will greatly broaden the industrial applications of MXene-based polymer composites in the field of fire prevention of ancient buildings.
机译：古建筑多为易燃木结构，存在严重的安全隐患。防火涂料是古代木结构建筑最简单、最有效的防火措施之一。在这项工作中，我们证明了Ti3C2Tx过渡金属碳化物/碳氮化物（MXene）作为增效剂，水性环氧树脂作为成膜剂，聚磷酸铵、二季戊四醇和三聚氰胺（P-C-N体系）作为膨胀型防火体系来制备Ti3C2Tx/环氧膨胀型防火涂料（TEIFC）。结果表明，MXene显著提高了涂料的阻燃性能。通过加入3 wt%Ti3C2Tx（TEIFC-3，含62 wt%P-C-N系统），涂层显示UL-94 V-0等级，极限氧指数值为38%。此外，Ti3C2Tx和P-C-N体系的结合将涂层的肖氏硬度提高到95 SHD（TEIFC-3）。此外，TEIFC-3具有较高的热稳定性，T-HRI为177.0摄氏度，T-dmax为380.5摄氏度。这项工作为膨胀型防火涂料的设计和制备提供了一种新的策略，这将极大地拓宽MXene基聚合物复合材料在古建筑防火领域的工业应用。

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