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- 2015
基于层层组装法构建阻燃天然纤维素纤维织物的研究进展
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Abstract:
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。 Layer-by-layer assembly (LBL) is a new kind of method for preparing flame retardant natural cellulosic fiber fabric, which is based on the physical adsorption of oppositely charged polyelectrolytes and multilayer film is formed through alternate deposition on surface of fabric. Compared with traditional methods, LBL method can construct flame retardant multilayer films between the substrate and external environment, so as to inhibit the combustion process directly. In particular, adjusting the assembly conditions and process can change the mass, thickness and elementary composition of the multilayer films conveniently, so as to control the flame retardant properties effectively. Herein, the recent developments in the preparation of nanomaterials-nanomaterials, nanomaterials-polyelectrolyte, polyelectrolyte-polyelectrolyte flame retardant natural cellulosic fiber fabric via LBL method were summarized, and the related works for constructing amino-carbon nanotubes-polyphosphate and polyethyleneimine-polyphosphate intumescent flame retardant coatings on surface of ramie fabric in our lab were also introduced. Furthermore, the outlooks of future developments were discussed. 国家"973计划"(2010CB631105); 先进纺织材料与制备技术教育部重点实验室(浙江理工大学)优秀青年人才培养基金(2012QN08)
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