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Arias-Ferreiro G, Ares-Pernas A, Lasagabáster-Latorre A, Aranburu N, Guerrica-Echevarria G, Dopico-García MS, Abad MJ. Printability Study of a Conductive Polyaniline/Acrylic Formulation for 3D Printing. Polymers (Basel) 2021; 13:polym13132068. [PMID: 34201892 PMCID: PMC8272001 DOI: 10.3390/polym13132068] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/15/2021] [Accepted: 06/19/2021] [Indexed: 11/16/2022] Open
Abstract
There is need for developing novel conductive polymers for Digital Light Processing (DLP) 3D printing. In this work, photorheology, in combination with Jacobs working curves, efficaciously predict the printability of polyaniline (PANI)/acrylate formulations with different contents of PANI and photoinitiator. The adjustment of the layer thickness according to cure depth values (Cd) allows printing of most formulations, except those with the highest gel point times determined by photorheology. In the working conditions, the maximum amount of PANI embedded within the resin was ≃3 wt% with a conductivity of 10-5 S cm-1, three orders of magnitude higher than the pure resin. Higher PANI loadings hinder printing quality without improving electrical conductivity. The optimal photoinitiator concentration was found between 6 and 7 wt%. The mechanical properties of the acrylic matrix are maintained in the composites, confirming the viability of these simple, low-cost, conductive composites for applications in flexible electronic devices.
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Affiliation(s)
- Goretti Arias-Ferreiro
- Grupo de Polímeros, Centro de Investigacións Tecnolóxicas, Universidade da Coruña, Campus de Ferrol, 15471 Ferrol, Spain; (G.A.-F.); (A.A.-P.); (M.S.D.-G.)
| | - Ana Ares-Pernas
- Grupo de Polímeros, Centro de Investigacións Tecnolóxicas, Universidade da Coruña, Campus de Ferrol, 15471 Ferrol, Spain; (G.A.-F.); (A.A.-P.); (M.S.D.-G.)
| | - Aurora Lasagabáster-Latorre
- Departemento Química Orgánica I, Facultad de Óptica y Optometría, Universidad Complutense de Madrid, Arcos de Jalón 118, 28037 Madrid, Spain;
| | - Nora Aranburu
- POLYMAT and Department of Advanced Polymers and Materials, Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, 20018 San Sebastián, Spain; (N.A.); (G.G.-E.)
| | - Gonzalo Guerrica-Echevarria
- POLYMAT and Department of Advanced Polymers and Materials, Physics, Chemistry and Technology, Faculty of Chemistry, University of the Basque Country UPV/EHU, 20018 San Sebastián, Spain; (N.A.); (G.G.-E.)
| | - M. Sonia Dopico-García
- Grupo de Polímeros, Centro de Investigacións Tecnolóxicas, Universidade da Coruña, Campus de Ferrol, 15471 Ferrol, Spain; (G.A.-F.); (A.A.-P.); (M.S.D.-G.)
| | - María-José Abad
- Grupo de Polímeros, Centro de Investigacións Tecnolóxicas, Universidade da Coruña, Campus de Ferrol, 15471 Ferrol, Spain; (G.A.-F.); (A.A.-P.); (M.S.D.-G.)
- Correspondence:
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