聚氨酯
阻燃剂
纳米复合材料
石墨烯
材料科学
乳状液
可燃性
化学工程
水溶液
复合材料
有机化学
化学
纳米技术
工程类
作者
Peikun Zhang,Pingfan Xu,Haojun Fan,Zhenyu Zhang,Yi Chen
出处
期刊:Journal of The American Leather Chemists Association
[American Leather Chemists Association]
日期:2018-01-01
卷期号:113 (5): 142-150
被引量:14
摘要
We demonstrate a facile and green approach to preparephosphorus-nitrogen containing waterborne polyurethane/graphene nanocomposite (PN/G-WPU) as flame-retardantretanning agent for leather. The PN/G-WPU was synthesized bycovalently embedding phosphoramidate-based diol intopolyurethane chain, followed by emulsification with grapheneoxide (GO) aqueous solution and in-situ reduced with hydrazinehydrate. The structure and emulsion stability of prepared PN/GWPUwere characterized, and the physical mechanical propertiesas well as the flammability of resulting leathers were investigated.The results indicate the good dispersion and strong interfacialinteraction of graphene with polyurethane matrix, whichfacilitates the PN/G-WPU penetrating into leather fibers. ThePN/G-WPU retanning agent can effectively improve thecomprehensive performance of resultant leather such ashydrothermal stability, physical-mechanical properties, flameretardancy and smoke suppression performance. Accordingly,our method might provide an alternative strategy formanufacturing high-performance leather.
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