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Berlin 2018 – wissenschaftliches Programm

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DY: Fachverband Dynamik und Statistische Physik

DY 72: Poster: Stoch. and Nonl. Dy., Modeling, Compl. Sys.

DY 72.16: Poster

Donnerstag, 15. März 2018, 15:30–18:00, Poster A

Investigation of nanofiber mats by statistical examination of AFM images — •Tomasz Blachowicz1, Tobias Böhm2, and Andrea Ehrmann21Silesian University of Technology, Institute of Physics - Center for Science and Education, 44-100 Gliwice, Poland — 2Bielefeld University of Applied Sciences, Faculty of Engineering and Mathematics, 33619 Bielefeld, Germany

Image processing of pictures from fibers and fibrous materials allows for investigating diverse geometrical properties, such as yarn hairiness, fiber bifurcations, or fiber lengths and diameters. Such irregular sample sets are naturally suitable to statistical examination of the images, using a random-walk algorithm, resulting in the calculation of the so-called Hurst exponent. While previous investigations have proven the appropriateness of this method for examinations of different fibers, yarns and textile fabrics [1-3], a recent study used AFM (atomic force microscopy) images, split into different gray scales, to analyze and quantify differences between various nanofiber mats created from polyacrylonitrile. Besides a strong influence of the nanofiber diameters, a significant impact of the AFM settings became visible, offering an additional optimization tool for AFM measurements.

[1] T. Blachowicz, A. Ehrmann, K. Domino, Physica A: Statistical Mechanics and its Applications 452, 167-177 (2016)

[2] A. Ehrmann, T. Blachowicz, K. Domino, S. Aumann, M. O. Weber, H. Zghidi, Text. Res. J. 85, 2147-2154 (2015)

[3] A. Ehrmann, T. Blachowicz, H. Zghidi, M. O. Weber, Journal of Physics: Conference Series 633, 012101 (2015)

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