Influence of DMSO non-toxic solvent on the mechanical and chemical properties of a PVDF thin film

André, António Diogo ; Teixeira, Ana Margarida ; Martins, Pedro (Universidad de Zaragoza)

Resumen: Piezoelectric materials such as PVDF and its copolymers have been widely studied in different areas and with promising applications, such as haptic feedback actuators or deformation sensors for aided-mobility scenarios. To develop PVDF-based solutions, different protocols are reported in the literature; however, a toxic and harmful solvent is commonly used (dymethilformamide (DMF)). In the present study, a non-toxic solvent (dymethilsulfoxide (DMSO)) is used to dissolve PVDF powder, while a specific ionic liquid (IL), [PMIM][TFSI], is used to enhance piezoelectric properties. A PVDF/IL thin film is characterized. The physical material characterization is based on optical analysis (to ensure the sample’s homogeneity) and on mechanical linear behaviour (Young’s modulus of 144 MPa and yield stress of 9 MPa). Meanwhile, a chemical analysis focuses on the phase modifications introduced by the addition of IL (β phase increase to 80% and a degree of crystallinity, χ, of 30%). All the results obtained are in good agreement with the literature, which indicates that the proposed experimental protocol is suitable for producing PVDF-based thin films for biomedical applications.

Idioma: Inglés

DOI: 10.3390/app14083356

Año: 2024

Publicado en: Applied Sciences (Switzerland) 14, 8 (2024), 3356 [12 pp.]
ISSN: 2076-3417

Factor impacto JCR: 2.5 (2024)

Categ. JCR: ENGINEERING, MULTIDISCIPLINARY rank: 50 / 179 = 0.279 (2024) - Q2 - T1
Categ. JCR: CHEMISTRY, MULTIDISCIPLINARY rank: 123 / 239 = 0.515 (2024) - Q3 - T2
Categ. JCR: MATERIALS SCIENCE, MULTIDISCIPLINARY rank: 284 / 461 = 0.616 (2024) - Q3 - T2
Categ. JCR: PHYSICS, APPLIED rank: 101 / 187 = 0.54 (2024) - Q3 - T2

Factor impacto CITESCORE: 5.5 - Instrumentation (Q1) - Engineering (all) (Q1) - Fluid Flow and Transfer Processes (Q1) - Process Chemistry and Technology (Q2) - Materials Science (all) (Q2) - Computer Science Applications (Q2)

Factor impacto SCIMAGO: 0.521 - Computer Science Applications (Q2) - Engineering (miscellaneous) (Q2) - Process Chemistry and Technology (Q2) - Instrumentation (Q2) - Materials Science (miscellaneous) (Q2) - Fluid Flow and Transfer Processes (Q2)

Tipo y forma: Artículo (Versión definitiva)

Área (Departamento): Área Mec.Med.Cont. y Teor.Est. (Dpto. Ingeniería Mecánica)