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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Fire-safe unsaturated polyester resin nanocomposites based on MAX and MXene: a comparative investigation of their properties and mechanism of fire retardancy
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Fire-safe unsaturated polyester resin nanocomposites based on MAX and MXene: a comparative investigation of their properties and mechanism of fire retardancy

机译：基于MAX和MXENE的防火式非饱和聚酯树脂纳米复合材料：对其性能和阻燃机制的比较调查

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Recently, MXene, as a novel graphene-like nanomaterial, has been found to bestow good flame-retardant and smoke-suppression properties to polymers mainly due to the physical barrier effect of its 2D nanosheets. However, a comprehensive investigation of its chemical components as an important factor for these properties has not been conducted to date. To address this issue, herein, MXene (Ti3C2Tx) and MAX (Ti3AlC2) were introduced into unsaturated polyester resin (UPR) at same amounts (2.0 wt%). Their structures are different (multilayer for MXene and bulk for MAX), but the chemical components are similar; therefore, it is important to study the influence of the chemical components of MXene on the fire-safety properties of polymers. In this study, 2 wt% MAX was added to the UPR, and the peak heat release rate (PHRR), the total smoke production (TSP), and carbon monoxide production (COP) of the resulting material were reduced by 11.04%, 19.08%, and 15.79%, respectively; these findings demonstrate the important role of the chemical components of MAX: Ti exerts a catalytic attenuation effect on the UPR nanocomposites during combustion. Moreover, a better fire-safety property of the MXene/UPR nanocomposites (reduction of PHRR by 29.56%, TSP by 25.26%, and COP by 31.58%) than that of the MAX/UPR nanocomposites was achieved, which was due to the physical barrier effect of the MXene nanosheets. This study verifies that in addition to the physical barrier effect, the chemical components play a very important role in the fire safety enhancement of MXene-based nanocomposites.
机译：最近，MXENE作为一种新型石墨烯样纳米材料，已被发现赋予聚合物的良好阻燃和烟雾抑制性能，这主要是由于其2D纳米片的物理阻隔效果。然而，迄今尚未对其化学成分进行全面调查作为这些物业的重要因素。为了解决该问题，本文中，将MXENE（TI3C2TX）和MAX（TI3ALC2）引入同一量（2.0wt％）的不饱和聚酯树脂（UPR）中。它们的结构是不同的（MXENE的多层和最大散装），但化学成分是相似的;因此，重要的是研究MXENE化学成分对聚合物的火灾安全性的影响。在本研究中，将2wt％Max加入到UPR中，并且所得材料的峰值热释放速率（PHRR），总烟雾生产（TSP）和一氧化碳产生（COP）减少11.04％，19.08 ％，分别为15.79％;这些发现证明了MAX的化学成分的重要作用：TI在燃烧过程中对UPR纳米复合材料产生催化衰减作用。此外，达到MXENE / UPR纳米复合材料的更好的防火性能（将PHRR的减少29.56％，TSP减少25.26％，COP达31.58％），这是由于物理的MXENE NANOSHETS的屏障效应。本研究验证除了物理屏障效应外，化学成分在基于MXENE的纳米复合材料的消防安全增强中起着非常重要的作用。

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