Oriented growth of LDH for constructing multifunctional cotton fabric with flame retardancy, smoke suppression, and filtering capability
Oriented growth of LDH for constructing multifunctional cotton fabric with flame retardancy, smoke suppression, and filtering capability
复制标题
LDH定向生长构建阻燃、抑烟、过滤多功能棉织物
DOI：
10.1016/j.clay.2022.106588
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发表时间：
2022
影响因子：
5.6
通讯作者：
Xiaoyu Gu
中科院分区：
文献类型：
--
作者：
Wenjia Wang;Dan MENG;Julin Wang;Hongfei Li;jun Sun;Sheng Zhang;Xiaoyu Gu
提出了一种同时实现棉织物阻燃、抑烟和过滤功能的策略。采用聚多巴胺（PDA）浸渍-夹持法对棉织物进行处理，然后将层状双氢氧化物（LDH）垂直引入棉织物表面，最后将植酸（PA）螯合的Fe 3+沉积在棉织物表面。所得到的棉-PDA-LDH-Fe 3 +PA样品具有优异的阻燃性和抑烟性。处理后棉样的极限氧指数达到33.9%。对于棉-PDA-LDH-Fe 3 +PA样品，总热释放从对照棉织物样品的8.7 MJ/m2下降到仅1.9 MJ/m2，并且总烟雾产生量从138.9 m2/m2下降到68.1 m2/m2。棉-PDA-LDH-Fe 3 +PA样品显示出优异的过滤颗粒物质的能力，过滤效率为91%。本研究为生产上级多功能棉织物提供了一种有效的方法
A strategy to achieve flame retardancy, smoke suppression, and filtering capability simultaneously for the cotton fabrics was proposed. The cotton fabric sample was firstly treated with a polydopamine (PDA) solution through a dip-nip process, then the layered double hydroxides (LDH) were vertically introduced on the fabric surface before depositing Fe3+chelated with phytic acid (PA). The obtained Cotton-PDA-LDH-Fe3+PA sample exhibited excellent flame retardancy and smoke suppression. The limiting oxygen index of the treated cotton sample reached 33.9%. For the Cotton-PDA-LDH-Fe3+PA sample, the total heat release was dropped to only 1.9 MJ/m2from 8.7 MJ/m2of the control cotton fabric sample, and the total smoke production was decreased from 138.9 m2/m2to 68.1 m2/m2. The Cotton-PDA-LDH-Fe3+PA sample showed excellent ability of filtering particulate matter with a filtration efficiency of 91%. It is expected that this work provides a useful method to produce superior multi-functional cotton fabrics