CNTs in polymer melt: The influence on dispersion by sonication

17th World Textile Conference AUTEX 2017 - Shaping the Future of Textiles

Bischoff, M.^1 ; Köhler, T.^1 ; Bandelin, J.^2 ; Möhricke, J.^2 ; Jung, R.^2 ; Gries, T.^1

Rheinisch Westfalische Technische Hochschule, Institut für Textiltechnik, Otto-Blumenthalstraße 1, Aachen

52074, Germany^1

BANDELIN Electronic GmbH and Co. KG, Heinrichstraße 3-4, Berlin

12207, Germany^2

关键词: Carbon Nano-Particles;    Conductive fibres;    Dispersion methods;    Dispersion quality;    Distributed particles;    Filament properties;    Functional properties;    High specific surface area;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/254/3/032001/pdf
DOI  :  10.1088/1757-899X/254/3/032001

来源: IOP

【 摘 要 】

Nanocomposites have become more important as the implementation of nanoparticles in polymer allows additional functions in common industrial parts. Especially in the fabrication of filaments or fibres nanomodification is crucial, as only very small fillers can be added to the very fine fibres (common fibre diameter is 20 μm, fine filaments are 1 μm). [1,2] Discharging fibres, conductive fibres and many other functional fibres raise in their importance nowadays, as the need for highly functional but flexible surfaces, such as textiles rises. Especially the dispersion quality is essential for the final enhancement of the filament properties. Homogeneously distributed particles serve function throughout the full fibre giving equal mechanical and functional properties over the length of the fibre and of the manufactured textile [3,4]. Counteracting this requirement nanoparticles tend to form agglomerates due to their high specific surface area during the manufacturing of those nanocomposites [5]. In this paper the distribution and dispersion methods are introduced. The homogenization of carbon nanoparticles in polymer melt is enhanced by a novel sonication unit of ITA and BANDELIN electronic GmbH & Co. KG. The first development steps of the semi-industrial unit fabrication as well as the first experimental results in the lab scale of the modification of the dispersion will be shown. Special focus will be laid on the sealing of the new sonication unit as well as the positioning and equipment size when being implemented in an existing melt spinning unit. The paper will show the status of the project as well as the next steps, to show other participants the potential of the newly developed unit.