Dielectric Properties of BN-ZnO-GNP Doped PU-EG Composites
Abstract
In this study, ZnO and GNP were added separately and together to improve the dielectric constant values of hexagonal boron nitride. Polyurethane and glycerol were used as binders. The productions were carried out by dispersing each additive separately in acetone and then coating it with the doctor blade method on aluminium foil. The characterizations were carried out with FTIR and SEM. Then, the capacitance values of each composite were first measured with the LCR meter and then the dielectric constant were calculated. According to the results, the highest dielectric constant values were obtained at the 100 and 120 Hz frequencies. At the frequency value of 100 kHz, the lowest dielectric constant was obtained in all composites. Compared to pure BN, an increase of 115% was achieved with ZnO contribution, while an increase of up to 145% was achieved with GNP contribution. The highest increase was achieved up to 160% with ZnO + GNP contribution. In addition, with the contribution of ZnO + GNP, the amount of decrease at high frequencies was less than the others. This is thought to be due to the combined effect of both ZnO and GNP, which has a large surface area.
Keywords
Graphene nanoplate, Zinc oxide, Boron nitride, Dielectric constant, Composite materials
References
- Akinay, Y., Akkuş, I.N., 2020. Synthesis and characterization of the pearlescent pigments based on mica deposited with SiO2, AlN and TiO2: First report of its dielectric properties. Ceramics International 46, 17735–17740.
- Akinay, Y., Akkuş, I.N., 2019. The optic and dielectric properties of CuO deposited barite pigments. Academic Perspective Procedia 2, 1325–1330.
- Bayod-Rújula, Á.A., Lorente-Lafuente, A.M., Cirez-Oto, F., 2011. Environmental assessment of grid connected photovoltaic plants with 2-axis tracking versus fixed modules systems. Energy 36, 3148–3158.
- Black, C.T., Welser, J.J., 1999. Electric-field penetration into metals: consequences for high-dielectric-constant capacitors. IEEE Transactions on Electron Devices 46, 776–780.
- Caddeo, S., Baino, F., Ferreira, A.M., Sartori, S., Novajra, G., Ciardelli, G., Vitale-Brovarone, C., 2015. Collagen/Polyurethane-Coated Bioactive Glass: Early Achievements towards the Modelling of Healthy and Osteoporotic Bone. Key Engineering Materials 631, 184–189. https://doi.org/10.4028/www.scientific.net/KEM.631.184
- Chan, K.-Y., Yang, D., Demir, B., Mouritz, A.P., Lin, H., Jia, B., Lau, K.-T., 2019. Boosting the electrical and mechanical properties of structural dielectric capacitor composites via gold nanoparticle doping. Composites Part B: Engineering 178, 107480.
- Cusenza, M.A., Guarino, F., Longo, S., Mistretta, M., Cellura, M., 2019. Reuse of electric vehicle batteries in buildings: An integrated load match analysis and life cycle assessment approach. Energy and Buildings 186, 339–354.
- Deng, L., Hao, Z., Wang, J., Zhu, G., Kang, L., Liu, Z.-H., Yang, Z., Wang, Z., 2013. Preparation and capacitance of graphene/multiwall carbon nanotubes/MnO2 hybrid material for high-performance asymmetrical electrochemical capacitor. Electrochimica Acta 89, 191–198.
- Deshmukh, K., Ahamed, M.B., Deshmukh, R.R., Pasha, S.K., Chidambaram, K., Sadasivuni, K.K., Ponnamma, D., AlMaadeed, M.A.-A., 2016. Eco-friendly synthesis of graphene oxide reinforced hydroxypropyl methylcellulose/polyvinyl alcohol blend nanocomposites filled with zinc oxide nanoparticles for high-k capacitor applications. Polymer-Plastics Technology and Engineering 55, 1240–1253.
- Dyer, T.W., Cartier, E.A., Chudzik, M.P., Moumen, N., 2010. Deep trench (DT) metal-insulator-metal (MIM) capacitor.