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首页> 外文期刊>International Journal of Biological Macromolecules: Structure, Function and Interactions >Chitosan-based flame retardant coatings for polyamide 66 textiles: One-pot deposition versus layer-by-layer assembly
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Chitosan-based flame retardant coatings for polyamide 66 textiles: One-pot deposition versus layer-by-layer assembly

机译：基于壳聚糖的阻燃涂层66个纺织品：单罐沉积与层逐层组装

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摘要

Chitosan (CS) and phosphorylated chitosan (PCS) were deposited onto the polyamide 66 (PA66) fabric surfaces along with poly-acrylate sodium (PAS) via 'one pot' and layer by layer (LbL) assembly methods in preparing flame retardant coatings. Subsequently, to stabilize the deposited coatings, some of the fabric samples were treated under the UV-irradiation and additionally, a thermal treatment was also carried out for the remaining fabric samples. The LbL assembled fabrics showed a better homogeneity in the coating structure over the one pot deposited fabrics as appeared in scanning electron microscopy (SEM). Nonetheless, the LbL treated fabric sample (i.e., PA66-10BL-UV) with a higher weight gain% exhibited a greater improvement in limiting oxygen index (LOI) (i.e., 23%), and a reduced peak heat release rate (pHRR) (i.e., 25%). Yet more, only the LbL assembled and thermally cross-linked fabric sample could able to retain the flame retardant behavior in the vertical burning test even after 5 washing cycles. (C) 2019 Elsevier B.V. All rights reserved.
机译：将壳聚糖（Cs）和磷酸化的壳聚糖（PC）沉积在聚酰胺66（PA66）织物表面上以及通过层（LBL）组装方法在制备阻燃涂层中的聚丙烯酸酯钠（PAS）。随后，为了稳定沉积的涂层，在UV照射下处理一些织物样品，另外，还对剩余的织物样品进行热处理。 LBL组装的织物在涂覆电子显微镜（SEM）中出现的一个罐沉积织物上的涂层结构中的均匀性更好。尽管如此，具有较高重量增益的LBL处理的织物样品（即，PA66-10BL-UV）在限制氧指数（LOI）（即，23％）和降低的峰热释放率（PHRR）中表现出更大的改善。 （即，25％）。此外，只有LBL组装和热交联织物样品即使在5个洗涤循环之后也能够在垂直燃烧试验中保留阻燃性能。 （c）2019 Elsevier B.v.保留所有权利。

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