Abstract

The CuO deposited barite pigments (CBP) were obtained by direct deposition method. Optic and dielectric properties of nanocomposites were investigated. Hence, the prepared pigments were structural scanning electron microscope (SEM). The optic properties of pigments were evaluated with ultraviolet–visible spectrophotometer (UV-Vis). The scanning electronic microscopy results show that barite was coated with CuO uniformly. The UV-Vis results show that CuO deposited barite pigments (CBP) have high ultraviolet shielding performance. Furthermore CuO deposited barite pigments (CBP) exhibited UV-Vis reflectance than those of pure-CuO. Furthermore, the conductivity of barite flakes increased with the coating of CuO nanoparticles. The dielectric properties of CuO deposited barite pigments were determined in the frequency range of 8.2–12.4 GHz via vector network analyzer and the electromagnetic absorption properties of nanocomposite was determined and calculated by using these dielectric values (permittivity). CuO deposited barite/epoxy nanocomposite (mass ratio is 3:10) with 2 mm thickness showed a minimum reflection loss of -9 dB at 12.25 GHz frequency. Furthermore, the conductivity of barite flakes increased with the coating of CuO nanoparticles.

References

[1] Manasrah, A. D., Almanassra, I. W., Marei, N. N., Al-Mubaiyedh, U. A., Laoui, T., & Atieh, M.A. (2018). Surface modification of carbon nanotubes with copper oxide nanoparticles for heattransfer enhancement of nanofluids. RSC Advances, 8(4), 1791–1802.https://doi.org/10.1039/c7ra10406e.
[2] Mai, Y. J., Wang, X. L., Xiang, J. Y., Qiao, Y. Q., Zhang, D., Gu, C. D., & Tu, J. P. (2011).CuO/graphene composite as anode materials for lithium-ion batteries. Electrochimica Acta, 56(5),2306–2311. https://doi.org/10.1016/j.electacta.2010.11.036
[3] Zhao, B., Shao, G., Fan, B., Zhao, W., & Zhang, R. (2015). Facile synthesis and enhancedmicrowave absorption properties of novel hierarchical heterostructures based on a Ni microsphereCuO nano-rice core-shell composite. Physical Chemistry Chemical Physics, 17(8), 6044–6052.https://doi.org/10.1039/c4cp05229c
[4] Wan, Y., Cui, T., Xiao, J., Xiong, G., Guo, R., & Luo, H. (2016). Engineering carbon fibers withdual coatings of FeCo and CuO towards enhanced microwave absorption properties. Journal ofAlloys and Compounds, 687, 334–341.https://doi.org/10.1016/J.JALLCOM.2016.06.147
[5] Aruoja, Villem, et al. "Toxicity of nanoparticles of CuO, ZnO and TiO2 to microalgaePseudokirchneriella subcapitata." Science of the total environment 407.4 (2009): 1461-1468.
[6] Wang, H., Xu, J. Z., Zhu, J. J., & Chen, H. Y. (2002). Preparation of CuO nanoparticles bymicrowave irradiation. Journal of crystal growth, 244(1), 88-94.
[7] Wan, Y., Cui, T., Xiao, J., Xiong, G., Guo, R., & Luo, H. (2016). Engineering carbon fiberswith dual coatings of FeCo and CuO towards enhanced microwave absorption properties. Journalof Alloys and Compounds, 687, 334-341.
[8] Zeng, Jun, and Jincheng Xu. "Microwave absorption properties of CuO/Co/carbon fibercomposites synthesized by thermal oxidation." Journal of Alloys and Compounds 493.1-2 (2010):L39-L41. Liu et al.
[9] Johnson, C. A., Piatak, N. M., & Miller, M. M. (2017). Barite (Barium) (No. 1802-D). USGeological Survey.
[10] Thongpool, V., Phunpueok, A., Barnthip, N., & Jaiyen, S. (2015). BaSO4/Polyvinyl AlcoholComposites for Radiation Shielding. In Applied Mechanics and Materials (Vol. 804, pp. 3-6).Trans Tech Publications.
[11] Zhou, H., Wang, M., Ding, H., & Du, G. (2015). Preparation and characterization ofbarite/TiO2 composite particles. Advances in Materials Science and Engineering, 2015.
[12] Share Isfahani, H., Abtahi, S.M., Roshanzamir, M.A. et al. Geotech Geol Eng (2019) 37:845. https://doi.org/10.1007/s10706-018-0654-0
[13] Sakr, K., Ramadan, W., Sayed, M., El-Zakla, T., El-Desouqy, M., & El-Faramawy, N.(2018). Utilization of barite/cement composites for gamma rays attenuation. Radiation Effectsand Defects in Solids, 173(3-4), 269-282.
[14] Gao, Q., Wu, X., Fan, Y., & Meng, Q. (2017). Color performance and near infraredreflectance property of novel yellow pigment based on Fe2TiO5 nanorods decorated micacomposites. Dyes and Pigments, 146, 537-542.
[15] Akinay, Yuksel, and Abdullah O. Kizilcay. "Computation and modeling of microwaveabsorbing CuO/graphene nanocomposites." Polymer Composites (2019).
[16] Zhang N, Huang Y and Wang M. 3D ferromagnetic gra- phene nanocomposites with ZnOnanorods and Fe3O4 nanoparticles co-decorated for efficient electromagnetic wave absorption.Compos Part B Eng 2018; 136: 135–142.
[17] Idris FM, Hashim M, Abbas Z, et al. Recent develop- ments of smart electromagneticabsorbers based polymer- composites at gigahertz frequencies. J Magn Magn Mater 2016; 405:197–208.
[18] Meng F, Wang H, Huang F, et al. Graphene-based microwave absorbing composites: areview and prospect- ive. Compos Part B Eng 2018; 137: 260–277.
[19] Akinay, Y., & Hayat, F. (2019). Synthesis and microwave absorption enhancement of BaTiO3nanoparticle/polyvinylbutyral composites. Journal of Composite Materials, 53(5), 593-601.
[20] Microwave-Heating Mechanism and Theory of Material–Microwave Interaction YUKSELAKINAY CHAPTER 19, Vacca, J. R. (Ed.). (2019). Nanoscale Networking and CommunicationsHandbook. CRC Press.