{"id":44693,"date":"2021-11-18T10:27:22","date_gmt":"2021-11-18T09:27:22","guid":{"rendered":"https:\/\/www.h-its.org\/de\/?p=44693"},"modified":"2021-11-18T10:27:22","modified_gmt":"2021-11-18T09:27:22","slug":"longitudinal-strand-ordering-leads-to-shear-thinning-in-nafion-deutsch","status":"publish","type":"post","link":"https:\/\/www.h-its.org\/de\/2021\/11\/18\/longitudinal-strand-ordering-leads-to-shear-thinning-in-nafion-deutsch\/","title":{"rendered":"Brennstoffzellmembranen im Druck: Simulationen der Strukturviskosit\u00e4t von Nafion"},"content":{"rendered":"\n<p>Brennstoffzellen bieten dank ihrer Umweltfreundlichkeit und ihres unvergleichlichen Wirkungsgrades eine vielversprechende Alternative f\u00fcr die Energieerzeugung in einer Vielzahl von Technologien. Ihr Herzst\u00fcck und wichtigstes Bauteil ist die Protonenaustauschmembran. Diese Komponenten werden mit Hilfe von Drucktechniken unter Verwendung von Polymertinten hergestellt, wobei das am h\u00e4ufigsten verwendete Material Nafion ist. Die Eigenschaften des Endprodukts werden durch die physikalisch-chemischen Eigenschaften der Tinte, wie z. B. ihre Viskosit\u00e4t unter Scherung beeinflusst.<\/p>\n\n\n\n<p>In dieser Arbeit verwenden Forschende der MBM-Gruppe grobk\u00f6rnige Molekulardynamiksimulationen, um die Auswirkungen des Scherflusses auf Nafion-Tinten und deren Viskosit\u00e4t unter Scherung zu modellieren. Wir beleuchten den Mechanismus hinter der Strukturviskosit\u00e4t, den diese Tinten beim Flie\u00dfen aufweisen, und zeigen, dass er auf die L\u00e4ngsausrichtung der Nafion-Str\u00e4nge entlang der Flie\u00dfrichtung zur\u00fcckzuf\u00fchren ist.<\/p>\n\n\n\n<p>Entdecken Sie unsere Studie (engl.)<em>:<\/em> <a href=\"https:\/\/pubs.rsc.org\/en\/content\/articlelanding\/2021\/CP\/D1CP02024B\">Longitudinal strand ordering leads to shear thinning in Nafion<\/a> <br>Nicholas Michelarakis, Florian Franz, Konstantinos Gkagkas and Frauke Gr\u00e4ter<br><em>Physical Chemistry Chemical Physics<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Brennstoffzellen bieten dank ihrer Umweltfreundlichkeit und ihres unvergleichlichen Wirkungsgrades eine vielversprechende Alternative f\u00fcr die Energieerzeugung in einer Vielzahl von Technologien. &#8230;<\/p>\n","protected":false},"author":128,"featured_media":44708,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[1],"hits-research-group":[1296],"class_list":["post-44693","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gruppen-news","hits-research-group-mbm-de"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - 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