材料科学
蒙脱石
聚氨酯
光泽度(光学)
复合材料
纳米复合材料
化学工程
纳米技术
工程类
涂层
作者
Zhengmao Ding,Keke Chen,Xin Wei,Yunjun Luo
标识
DOI:10.1016/j.porgcoat.2023.107410
摘要
Ultrathin two-dimensional (2D) nanosheets have driven the development of multifunctional materials. However, persistent challenges with complex processes, low production rates, and high costs have prevented ultrathin 2D nanosheets from realizing their full potential in nanocomposite. Herein, large-scale exfoliated montmorillonite (MTM) mono-layered nanosheets in polyethyl-phosphate glycol ester were assembled into environment-friendly waterborne polyurethane to obtain multifunctional nanocoatings with superior matte performance, favorable flame retardancy, and high adhesion. Specifically, a significant 98.2 % decrease of 60° gloss from 65.0 GU to 1.2 GU was observed, which almost wholly diffuses incident light due to the rougher surface. Besides, total heat release and total smoke rate were decreased by a maximum of 27.1 % and 34.4 %, respectively. Surprisingly, the nanocoating with excellent anti-blocking properties has outstanding adhesion to PU leather. These nanocoatings on leather and fabric showed potential for engineering applications. This study may provide new insight for application of ultrathin 2D nanosheets in multifunctional materials.
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