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首页> 外文期刊>International Journal of Biological Macromolecules: Structure, Function and Interactions >Graphene oxide functionalized biomolecules for improved flame retardancy of Polyamide 66 fabrics with intact physical properties
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Graphene oxide functionalized biomolecules for improved flame retardancy of Polyamide 66 fabrics with intact physical properties

机译：石墨烯氧化物官能化生物分子，用于改善聚酰胺66织物具有完整物理性质的聚酰胺66织物的阻燃性

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摘要

A plant derived bio-macromolecule namely lignin (L) and a green phosphorus compound like phytic acid (PA) were functionalized with graphene oxide (GO) and subsequently, used to enhance the flame retardant properties of polyamide 66 (PA66) fabrics in a one pot deposition method. Meanwhile, we also considered pure phytic acid and one more bio-derived charring agent like chitosan (CS) to formulate a series of GO-based flame retardant finishing by altering the applied compounds in the formulation. The applied finishing with a minimum loading % (i.e., less than 10%) rarely altered the physical properties (i.e., color, handle and tensile strength, etc.) of treated textiles while provided enhanced thermal stability and added flame retardancy. Thus, a significant increase in limiting oxygen index (LOI) by 27% was received for the GO-lignin and GO-phytic acid modified fabric sample (i.e., PA66-A), indicating the supremacy of graphene-based compound. Furthermore, a substantial reduction in the peak heat release rate (pHRR) by 25% was also noticed for the fabric sample treated with GO-lignin, chitosan and phytic acid (i.e., PA66-D). Additionally, the as prepared finishing exhibited a considerable level of wash durability as a maximum reduction of pHRR by 17% was retained even after 5 washing cycles. (C) 2020 Elsevier B.V. All rights reserved.
机译：植物衍生的生物高分子即木质素（L）和像植物酸（PA）的绿色磷化合物，用石墨烯氧化物（GO）和随后官能化，用于增强聚酰胺66（PA66）织物的阻燃性能盆沉积法。同时，我们还考虑了纯植酸和一种更加生物衍生的炭剂如壳聚糖（Cs），以通过改变制剂中的施加的化合物来配制一系列基于型阻燃剂精加工。具有最小负载量（即，小于10％）的施加的精加工很少改变处理纺织品的物理性质（即颜色，手柄和抗拉强度等），同时提供增强的热稳定性并增加阻燃性。因此，对于Go-lignin和Go-Phytic酸改性的织物样品（即PA66-A），接收到限制氧指数（LOI）的显着增加，表明基于石墨烯的化合物至上的至高无上。此外，对于用Go-lignin，壳聚糖和植物（即，PA66-D）处理的织物样品，还注意到峰值热释放速率（PHRR）的大幅降低25％。另外，作为制备的精加工表现出相当大水平的洗涤耐久性，因为甚至在5次洗涤循环之后，甚至保留了17％的最大31％的耐久性。 （c）2020 Elsevier B.v.保留所有权利。

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