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首页> 外文期刊>Colloids and Surfaces, A. Physicochemical and Engineering Aspects >Layer-by-layer nanoparticle coatings on lignocellulose wood microfibers
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Layer-by-layer nanoparticle coatings on lignocellulose wood microfibers

机译：木质纤维素木质超细纤维上的逐层纳米颗粒涂料

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摘要

The layer-by-layer (LbL) self-assembly technique was applied to deposit organized multilayers of TiO2 or SiO2 nanoparticles of 30-80nm diameter, and 50-nm diameter halloysite clay nanotubes on softwood fibers. Fluorescent and scanning electron microscopy images showed complete nanoparticle coating on these fibers. The thickness of the two-layer coating was estimated as 46, 58, and 115 nm for TiO2, SiO2, and halloysite tubules, respectively, which corresponds to ca. 1 wt% nanoparticle loading of the fibers. The brightness test of paper handsheets prepared from nanocoated fibers showed that TiO2 nanoparticle coating gave handsheet reflectance of 84% at 450 nm, which is 4% higher than the brightness of the control sample from virgin fibers. The paper handsheets prepared with nanoparticle-coated fibers had 30-50% higher porosity with tensile strength index retained close to the control sample. (c) 2006 Elsevier B.V. All rights reserved.
机译：应用逐层（LbL）自组装技术在软木纤维上沉积直径为30-80nm的TiO2或SiO2纳米颗粒和直径为50nm的埃洛石粘土纳米管的有序多层结构。荧光和扫描电子显微镜图像显示在这些纤维上完整的纳米颗粒涂层。对于TiO2，SiO2和埃洛石小管，两层涂层的厚度分别估计为46、58和115 nm，分别对应于约。纤维的1重量％纳米颗粒负载。由纳米涂层纤维制备的纸手抄纸的亮度测试表明，TiO2纳米颗粒涂层在450 nm处的手抄纸反射率为84％，比原始纤维的对照样品的亮度高4％。用纳米颗粒涂覆的纤维制备的纸手抄纸具有高30-50％的孔隙率，并且拉伸强度指数保持接近于对照样品。 （c）2006 Elsevier B.V.保留所有权利。

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