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Volume 14
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10.3390/ma14040753
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Article

Optical, Structural, and Dielectric Properties of Composites Based on Thermoplastic Polymers of the Polyolefin and Polyurethane Type and BaTiO3 Nanoparticles

by
M. Baibarac
1,*,
A. Nila
1,
I. Smaranda
1,
M. Stroe
1,
L. Stingescu
1,
M. Cristea
1,
R. C. Cercel
1,
A. Lorinczi
1,
P. Ganea
1,
I. Mercioniu
2,
R. Ciobanu
3,4,
C. Schreiner
3,4,
R. G. Garcia
5 and
C. Bartha
6
1
National Institute of Materials Physics, Laboratory of Optical Processes in Nanostructured Materials, Atomistilor Street 405A, P.O. Box MG-7, R077125 Bucharest, Romania
2
National Institute of Materials Physics, Atomic Structures and Defects in Advanced Materials Laboratory, Atomistilor Street 405A, P.O. Box MG-7, R077125 Bucharest, Romania
3
SC All Green SRL, 8 George Cosbuc, 700470 Iasi, Romania
4
Faculty of Electrical Engineering, Department of Electrical Measurements and Materials, Technical University Gh. Asachi Iasi, Bd. Professor Dimitrie Mangeron 67, 70050 Iasi, Romania
5
Izertis, Parque Cientifico Tecnologico, Avda. Del Jardin Botanico, 1345 Edificio Intra, 33203 Gijon, Spain
6
National Institute of Materials Physics, Magnetism and Superconductivity Laboratory, Atomistilor Street 405A, P.O. Box MG-7, R077125 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Academic Editor: Paweł Głuchowski
Materials 2021, 14(4), 753; https://doi.org/10.3390/ma14040753
Received: 30 December 2020 / Revised: 31 January 2021 / Accepted: 1 February 2021 / Published: 5 February 2021
(This article belongs to the Special Issue Advances in Nanostructured Materials)
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Abstract

In this work, new films containing composite materials based on blends of thermoplastic polymers of the polyurethane (TPU) and polyolefin (TPO) type, in the absence and presence of BaTiO3 nanoparticles (NPs) with the size smaller 100 nm, were prepared. The vibrational properties of the free films depending on the weight ratio of the two thermoplastic polymers were studied. Our results demonstrate that these films are optically active, with strong, broad, and adjustable photoluminescence by varying the amount of TPU. The crystalline structure of BaTiO3 and the influence of thermoplastic polymers on the crystallization process of these inorganic NPs were determined by X-ray diffraction (XRD) studies. The vibrational changes induced in the thermoplastic polymer’s matrix of the BaTiO3 NPs were showcased by Raman scattering and FTIR spectroscopy. The incorporation of BaTiO3 NPs in the matrix of thermoplastic elastomers revealed the shift dependence of the photoluminescence (PL) band depending on the BaTiO3 NP concentration, which was capable of covering a wide visible spectral range. The dependencies of the dielectric relaxation phenomena with the weight of BaTiO3 NPs in thermoplastic polymers blends were also demonstrated. View Full-Text
Keywords: thermoplastic polymers; BaTiO3; crystallization processes thermoplastic polymers; BaTiO3; crystallization processes
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MDPI and ACS Style

Baibarac, M.; Nila, A.; Smaranda, I.; Stroe, M.; Stingescu, L.; Cristea, M.; Cercel, R.C.; Lorinczi, A.; Ganea, P.; Mercioniu, I.; Ciobanu, R.; Schreiner, C.; Garcia, R.G.; Bartha, C. Optical, Structural, and Dielectric Properties of Composites Based on Thermoplastic Polymers of the Polyolefin and Polyurethane Type and BaTiO3 Nanoparticles. Materials 2021, 14, 753. https://doi.org/10.3390/ma14040753

AMA Style

Baibarac M, Nila A, Smaranda I, Stroe M, Stingescu L, Cristea M, Cercel RC, Lorinczi A, Ganea P, Mercioniu I, Ciobanu R, Schreiner C, Garcia RG, Bartha C. Optical, Structural, and Dielectric Properties of Composites Based on Thermoplastic Polymers of the Polyolefin and Polyurethane Type and BaTiO3 Nanoparticles. Materials. 2021; 14(4):753. https://doi.org/10.3390/ma14040753

Chicago/Turabian Style

Baibarac, M., A. Nila, I. Smaranda, M. Stroe, L. Stingescu, M. Cristea, R. C. Cercel, A. Lorinczi, P. Ganea, I. Mercioniu, R. Ciobanu, C. Schreiner, R. G. Garcia, and C. Bartha. 2021. "Optical, Structural, and Dielectric Properties of Composites Based on Thermoplastic Polymers of the Polyolefin and Polyurethane Type and BaTiO3 Nanoparticles" Materials 14, no. 4: 753. https://doi.org/10.3390/ma14040753

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