Autor según el artículo: Ramon, A; Liashenko, I; Rosell-Llompart, J; Cabot, A
Departamento: Enginyeria Química
Autor/es de la URV: Rosell Llompart, Joan
Palabras clave: Parameters Near-field electrospinning Nanofibers Fiber fabrication Fiber Fabrication technique Electrohydrodynamic jet printing 3d printing
Resumen: Electrohydrodynamic (EHD) jet printing of solvent-based inks or melts allows for the producing of polymeric fiber-based two- and three-dimensional structures with sub-micrometer features, with or without conductive nanoparticles or functional materials. While solvent-based inks possess great material versatility, the stability of the EHD jetting process using such inks remains a major challenge that must be overcome before this technology can be deployed beyond research laboratories. Herein, we study the parameters that affect the stability of the EHD jet printing of polyethylene oxide (PEO) patterns using solvent-based inks. To gain insights into the evolution of the printing process, we simultaneously monitor the drop size, the jet ejection point, and the jet speed, determined by superimposing a periodic electrostatic deflection. We observe printing instabilities to be associated with changes in drop size and composition and in the jet's ejection point and speed, which are related to the evaporation of the solvent and the resulting drying of the drop surface. Thus, stabilizing the printing process and, particularly, the drop size and its surface composition require minimizing or controlling the solvent evaporation rate from the drop surface by using appropriate solvents and by controlling the printing ambient. For stable printing and improved jet stability, it is essential to use polymers with a high molecular weight and select solvents that slow down the surface drying of the droplets. Additionally, adjusting the needle voltages is crucial to prevent instabilities in the jet ejection mode. Although this study primarily utilized PEO, the general trends observed are applicable to other polymers that exhibit similar interactions between solvent and polymer.
Áreas temáticas: Physics, applied Nanoscience & nanotechnology Materials science, multidisciplinary Materials science (miscellaneous) Materials science (all) General materials science General chemical engineering Engenharias ii Chemistry, multidisciplinary Chemical engineering (miscellaneous) Chemical engineering (all)
Acceso a la licencia de uso: https://creativecommons.org/licenses/by/3.0/es/
Direcció de correo del autor: joan.rosell@urv.cat
Identificador del autor: 0000-0002-5288-9150
Fecha de alta del registro: 2024-07-20
Versión del articulo depositado: info:eu-repo/semantics/publishedVersion
Enlace a la fuente original: https://www.mdpi.com/2079-4991/14/3/273
URL Documento de licencia: http://repositori.urv.cat/ca/proteccio-de-dades/
Referencia al articulo segun fuente origial: Nanomaterials. 14 (3):
Referencia de l'ítem segons les normes APA: Ramon, A; Liashenko, I; Rosell-Llompart, J; Cabot, A (2024). On the Stability of Electrohydrodynamic Jet Printing Using Poly(ethylene oxide) Solvent-Based Inks. Nanomaterials, 14(3), -. DOI: 10.3390/nano14030273
DOI del artículo: 10.3390/nano14030273
Entidad: Universitat Rovira i Virgili
Año de publicación de la revista: 2024
Tipo de publicación: Journal Publications
Repositori URV