Mapping the Volume Transfer of Graphene-Based Inks with the Gravure Printing Process: Influence of Rheology and Printing Parameters

• Tipo: Artigo em Revista Científica Internacional
• Data: 2022

Autores

Fakhari, A (Autor) Outra; Fernandes, C (Autor) Outra; Galindo Rosales, FJ (Autor) FEUP

Revista

Título: Materials

Vol. 15

Página Final: 2580

ISSN: 1996-1944

Editora: MDPI

Indexação

ISI Web of Knowledge - 0 Citações

Scopus

Outras Informações

ID Authenticus: P-00W-BR2

DOI: 10.3390/ma15072580

Abstract (EN): It is a common practice to add rheology modifiers to functional inks, such as graphene inks, to optimize the rheological properties so that they can be printed with a certain printing technique. This practice may lead to inks formulations with poorer electrical, optical, and mechanical performance upon its application, which are of paramount importance in printed electronics. In this study, we demonstrate for three different commercial graphene-based inks that it is possible to control the amount of ink transferred to the flat surface by tweaking printing parameters, such as the velocity and the length scale of the gravure cell, without modifying the rheology of the ink. Finally, the results are summarized in printing maps based on dimensionless numbers, namely, the capillary and Reynolds numbers.

Idioma: Inglês

Tipo (Avaliação Docente): Científica

Nº de páginas: 20