Počet záznamů: 1
Different aspects of polymer films based on low-density polyethylene using graphene as filler
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SYSNO ASEP 0575520 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Different aspects of polymer films based on low-density polyethylene using graphene as filler Tvůrce(i) Santos Medeiros, Gabriela (UMCH-V)
Nisar, M. (CL)
Peter, Jakub (UMCH-V) RID, ORCID
Andrade, R. J. E. (BR)
Fechine, G. J. M. (BR)Číslo článku e54502 Zdroj.dok. Journal of Applied Polymer Science. - : Wiley - ISSN 0021-8995
Roč. 140, č. 40 (2023)Poč.str. 12 s. Jazyk dok. eng - angličtina Země vyd. US - Spojené státy americké Klíč. slova barrier properties ; food packaging ; graphene Vědní obor RIV CD - Makromolekulární chemie Obor OECD Polymer science CEP TK02030155 GA TA ČR - Technologická agentura ČR Způsob publikování Omezený přístup Institucionální podpora UMCH-V - RVO:61389013 UT WOS 001042550600001 EID SCOPUS 85166773991 DOI https://doi.org/10.1002/app.54502 Anotace The focus of the present work is to prepare low-density polyethylene (LDPE)-graphene (G) nanocomposite films with improved gas barrier properties by melt extrusion. A narrow range of the graphene (0.05–0.3 wt.%) as filler was used in the LDPE matrix. The rheological analysis indicating that there is no significant influence on the LDPE chains mobility with the addition of filler. The nanocomposites percent crystallinity (Xc%) increase from 25.0% to 31.6% compared to neat LDPE. The X-ray diffractogram shows a change in width half height of the peak positioned at 26° ((002) plane) from 0.69 (graphite) to 1.24 (graphene), revealing the asymmetry of this plane. The optical microscopy images show a good dispersion of the nanoparticles in the polymer matrix. The mechanical properties of the nanocomposites in longitudinal direction demonstrate better improvement with addition of the filler as compared to the transverse direction. The contact angle measurements of nanocomposites for water and ethylene glycol do not shows a significant variation in comparison to neat LDPE. The nanocomposites show 26% enhancement in the oxygen barrier property. Thus, here we present the cost-effective LDPE-graphene nanocomposites with improve oxygen barrier property, which can be used in different industrial application especially in food packaging.
Pracoviště Ústav makromolekulární chemie Kontakt Eva Čechová, cechova@imc.cas.cz ; Tel.: 296 809 358 Rok sběru 2024 Elektronická adresa https://onlinelibrary.wiley.com/doi/10.1002/app.54502
Počet záznamů: 1