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Ultra-High Molecular Weight Polyethylene Modifications Produced by Carbon Nanotubes and Fe.sub.2./sub.O.sub.3./sub. Nanoparticles
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SYSNO ASEP 0570727 Document Type J - Journal Article R&D Document Type Journal Article Subsidiary J Článek ve WOS Title Ultra-High Molecular Weight Polyethylene Modifications Produced by Carbon Nanotubes and Fe2O3 Nanoparticles Author(s) Torrisi, A. (IT)
Torrisi, L. (IT)
Cutroneo, Mariapompea (UJF-V) ORCID, RID, SAI
Michalcová, A. (CZ)
D'Angelo, M. (IT)
Silipigni, L. (IT)Number of authors 6 Article number 1169 Source Title Polymers. - : MDPI
Roč. 15, č. 5 (2023)Number of pages 14 s. Publication form Online - E Language eng - English Country CH - Switzerland Keywords ATR-FTIR ; carbon nanotubes ; energy gap ; Fe2O3 nanoparticles ; UHMWPE ; UV-Vis OECD category Polymer science R&D Projects GA22-10536S GA ČR - Czech Science Foundation (CSF) Method of publishing Open access Institutional support UJF-V - RVO:61389005 UT WOS 000947859300001 EID SCOPUS 85149803238 DOI 10.3390/polym15051169 Annotation Thin sheets of ultra-high molecular weight polyethylene (UHMWPE), both in pristine form and containing carbon nanotubes (CNTs) or Fe2O3 nanoparticles (NPs) at different concentrations, were prepared. The CNT and Fe2O3 NP weight percentages used ranged from 0.01% to 1%. The presence of CNTs and Fe2O3 NPs in UHMWPE was confirmed by transmission and scanning electron microscopy and by energy dispersive X-ray spectroscopy analysis (EDS). The effects of the embedded nanostructures on the UHMWPE samples were studied using attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy and UV-Vis absorption spectroscopy. The ATR-FTIR spectra show the characteristic features of the UHMWPE, CNTs, and Fe2O3. Concerning the optical properties, regardless of the type of embedded nanostructures, an increase in the optical absorption was observed. The allowed direct optical energy gap value was determined from the optical absorption spectra: in both cases, it decreases with increasing CNT or Fe2O3 NP concentrations. The obtained results will be presented and discussed. Workplace Nuclear Physics Institute Contact Markéta Sommerová, sommerova@ujf.cas.cz, Tel.: 266 173 228 Year of Publishing 2024 Electronic address https://doi.org/10.3390/polym15051169
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