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利用层层组装(LBL)法构建阻燃天然纤维素纤维织物是基于相反电荷聚电解质的物理吸附作用,在织物表面交替沉积而成多层膜的一种新型阻燃改性方法。与传统方法相比,LBL法可以在基体与外部环境之间构建阻燃多层膜,从而直接干扰燃烧过程;尤其是通过对组装条件和过程的调节,可以方便地控制多层膜的质量、厚度和元素组成,进而对阻燃性能进行有效调控。总结了近年来国内外基于LBL法构建纳米材料-纳米材料、纳米材料-聚电解质及聚电解质-聚电解质阻燃天然纤维素纤维织物的研究进展,介绍了本课题组在苎麻织物表面构建氨基化碳纳米管-聚磷酸铵和聚乙烯亚胺-聚磷酸铵膨胀型阻燃涂层方面所做的探索性工作,展望了其未来的发展趋势。
The flame retardant natural cellulosic fiber fabric (LBL) is a new flame retardant modification method based on the physical adsorption of oppositely charged polyelectrolytes and alternately deposited on the fabric surface. Compared with the traditional method, the LBL method can build a flame retardant multilayer film between the substrate and the external environment, thereby directly interfering with the combustion process. In particular, by controlling the assembly conditions and processes, the quality of the multilayer film can be conveniently controlled, Thickness and elemental composition, and then effectively control the flame retardant properties. In this paper, we summarize the research progress of nanomaterials - nanomaterials, nanomaterials - polyelectrolytes and polyelectrolytes - polyelectrolytes flame retardant natural cellulose fiber fabrics based on LBL method both at home and abroad in recent years, and introduce the research group to construct amination on the surface of ramie fabric Carbon nanotubes - ammonium polyphosphate and polyethylenimine - ammonium polyphosphate intumescent flame retardant coating made by the exploratory work, and its future trends.