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Paper coatings with multi-scale roughness evaluated at different sampling sizes

机译：在不同采样量下评估具有多尺度粗糙度的纸涂料

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摘要

Papers have a complex hierarchical structure and the end-user functionalities such as hydrophobic-ity are controlled by a finishing layer. The application of an organic nanoparticle coating and drying of the aqueous dispersion results in an unique surface morphology with microscale domains that are internally patterned with nanoparticles. Better understanding of the multi-scale surface roughness patterns is obtained by monitoring the topography with non-contact profilometry (NCP) and atomic force microscopy (AFM) at different sampling areas ranging from 2000μm x 2000μmto 0.5 μm x 0.5 μm The statistical roughness parameters are uniquely related to each other over the different measuring techniques and sampling sizes, as they are purely statistically determined. However, they cannot be directly extrapolated over the different sampling areas as they represent transitions at the nano-, micro-to-nano and microscale level. Therefore, the spatial roughness parameters including the correlation length and the specific frequency bandwidth should be taken into account for each measurement, which both allow for direct correlation of roughness data at different sampling sizes.
机译：纸张具有复杂的层次结构，最终用户的功能（例如疏水性）由饰面层控制。有机纳米粒子涂层的应用和水分散体的干燥导致具有微米级域的独特表面形态，该微米级域在内部被纳米粒子图案化。通过使用非接触轮廓仪（NCP）和原子力显微镜（AFM）在2000μmx2000μm至0.5μmx 0.5μm的不同采样区域监视地形，可以更好地了解多尺度表面粗糙度图案。统计粗糙度参数为由于它们是完全由统计确定的，因此在不同的测量技术和抽样规模上彼此唯一相关。但是，由于它们代表了纳米，微米到纳米和微米级别的跃迁，因此无法直接在不同的采样区域上外推。因此，每次测量都应考虑包括相关长度和特定频率带宽在内的空间粗糙度参数，这两个参数都可以使不同采样大小下的粗糙度数据直接相关。

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  • 来源
    《Applied Surface Science》 |2011年第13期|p.5613-5625|共13页
  • 作者

    Pieter Samyn; Jurgen Van Erps; Hugo Thienpont; Gustaaf Schoukens;

  • 作者单位

    Ghent University - Department of Textiles, Technologiepark 907, B-9052 Zwijnaarde, Belgium;

    Vrije Universiteit Brussels - Department of Applied Physics & Photonics, Pleinlaan 2, B-1050 Brussels, Belgium;

    Vrije Universiteit Brussels - Department of Applied Physics & Photonics, Pleinlaan 2, B-1050 Brussels, Belgium;

    Ghent University - Department of Textiles, Technologiepark 907, B-9052 Zwijnaarde, Belgium;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    paper; coating; surface; roughness; scaling;

    机译：纸张;涂层;表面;粗糙度;结垢;

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