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Preparation of carbon-based hybrid particles and their application in microcellular foaming and flame-retardant materials

机译:碳基杂化粒子的制备及其在微孔发泡阻燃材料中的应用

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Polymeric microcellular foams with high strength and light weight are very important for industrial applications. However, regulating their cell structure and their weak flame retardancy are problematic. We designed single-arm POSS-based ionic liquids ([bel-POSS][PF _(6) ]), and constructed hybrid composites based on physical interaction between ionic liquids and carbon-based materials in PS microcellular foaming. Ionization of bel-POSS could result in a quaternary ammonium reaction and ion-exchange reaction, and the carbon materials exhibit good dispersion through blending. The prepared hybrid composites showed high CO _(2) adsorption. Conical calorimeter tests showed that PS composite materials could reduce the heat release rate, total heat release, toxic gases (CO _(2) and CO) release, and amount of smoke generated. These carbon materials could affect PS micropore structure, including the cell diameter and density. Upon addition of 5 wt% of carbon materials, the hole diameter decreased by >50%, and the hole density increased nearly ten folds.
机译:具有高强度和轻重量的聚合物微孔泡沫对于工业应用非常重要。然而,调节它们的电池结构和弱的阻燃性是有问题的。我们设计了基于单臂POSS的离子液体([bel-POSS] [PF _(6)]),并基于离子液体与碳基材料在PS微孔发泡中的物理相互作用,构建了混合复合材料。 bel-POSS的电离可导致季铵反应和离子交换反应,并且碳材料通过共混表现出良好的分散性。制备的杂化复合材料表现出高的CO _(2)吸附。锥形量热仪测试表明,PS复合材料可以降低放热速率,总放热,有毒气体(CO _(2)和CO)的释放以及烟雾的产生。这些碳材料可能会影响PS微孔结构,包括细胞直径和密度。当添加5wt%的碳材料时,孔直径减小> 50%,并且孔密度增加近十倍。

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