Additive manufacturing of single- and double-layer piezoelectric PVDF-TrFE copolymer sensors
| Autor: | Mohammadrafi Marandi, Joshua A. Tarbutton |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Double layer (biology)
0209 industrial biotechnology Materials science business.industry 3D printing 02 engineering and technology Substrate (printing) Piezoelectricity Industrial and Manufacturing Engineering 020303 mechanical engineering & transports 020901 industrial engineering & automation 0203 mechanical engineering Artificial Intelligence Copolymer Polar Composite material business Layer (electronics) Corona discharge |
| Zdroj: | Procedia Manufacturing. 34:666-671 |
| ISSN: | 2351-9789 |
| DOI: | 10.1016/j.promfg.2019.06.194 |
| Popis: | The sensitivity of piezoelectric PVDF sensors is directly related to the concertation and orientation of the polar phases. Previous efforts in obtaining oriented polar phases during 3D printing proved to be challenging. In this paper the superiority of the co-polymer PVDF-TrFE when compared to PVDF for 3D printing is demonstrated. In contrast to PVDF, PVDF-TrFE forms nearly pure β-phase in solidification from melt. The emergence of more β-phase than the non-polar α-phase is demonstrated with XRD results. 3D printed double-layer samples were produced consisting of one electroactive layer of PVDF-TrFE, and a non-electroactive substrate and protective layer of PVDF. The 3D printed samples were poled with corona discharge to produce output signals up to 130V DC peak-to-peak from a simple impact test (flicking) on a 20×30 mm sample. We also observed high sensitivity to 2mm dynamic displacement loads that produced ~19V. The results presented here are considerably higher than any reported results from other additive manufacturing methods. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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