Investigation of the physical properties of PVDF thin films obtained by 4D printing
N.V. Vostrov1, A.V. Solnyshkin1, I.M. Morsakov2, A.N. Belov3, P.N. Krylov1
1 Tver State University
2 JSC "SPC "Tvergeofizika"
3 National Research University of Electronic Technology
Abstract: In this work, we searched for the optimal way to create ferroelectric nanostructured composite materials based on 4D-printed polyvinylidene fluoride polymer films. Method fused deposition modeling allow using polyvinylidene fluoride and its copolymers not only in microelectronics as pyroelectric and piezoelectric sensors, as well as creating dynamic memory elements, organic solar cells and used in robotics. At the first stage of the work, the authors were selected optimal extrusion parameters for the manufacture of a thread from powder and granules. The next stage of the work included the analysis and determination of printing parameters by the method of layer-by-layer filament deposition to obtain the best quality of polymer films. Using scanning electron microscopy, the existence of two phases, a polar β-phase and a nonpolar α-phase, is shown, where the crystalline phase is observed in the form of lamellar crystals chaotically oriented in the α-phase matrix. Pyroelectric measurements performed by the dynamic method showed the presence of a noticeable pyroelectric response in polyvinylidene fluoride films obtained using additive technologies, bypassing the orientation extraction stage. The calculation of the pyroelectric coefficient gives values corresponding to the values of the pyroelectric coefficient for polyvinylidene fluoride samples obtained by traditional methods.
Keywords: composite, polymer ferroelectric, additive technologies, 4D printing, 3D printing, spontaneous polarization, piezoelectric effect, pyroelectric effect, scanning electron microscope
- Nikita V. Vostrov – Junior Researcher, Management of Scientific Research, Tver State University
- Alexander V. Solnyshkin – Dr. Sc., Professor, Condensed Matter Physics Department, Tver State University
- Ivan M. Morsakov – Researcher, JSC "SPC "Tvergeofizika"
- Alexey N. Belov – Dr. Sc., Professor, Integrated Electronics and Microsystems Department, National Research University of Electronic Technology
- Pavel N. Krylov – Senior Laboratory Assistant, Physical Chemistry Department, Tver State University
Vostrov, N.V. Investigation of the physical properties of PVDF thin films obtained by 4D printing / N.V. Vostrov, A.V. Solnyshkin, I.M. Morsakov, A.N. Belov, P.N. Krylov // Physical and chemical aspects of the study of clusters, nanostructures and nanomaterials. — 2022. — I. 14. — P. 561-571. DOI: 10.26456/pcascnn/2022.14.561. (In Russian).
Full article (in Russian): download PDF file
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