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Mechanical and antimicrobial properties of low-density-polyethylene/MgO nanocomposites

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dc.contributor.authorCament, Alejandro
dc.contributor.authorMoreno-Serna, Viviana
dc.contributor.authorLoyo, Carlos
dc.contributor.authorQuintana, Pabla
dc.contributor.authorSeura, Pablo
dc.contributor.authorVallejos Baier, Raúl
dc.contributor.authorBenavente, Rosario
dc.contributor.authorUlloa, María Teresa
dc.contributor.authorRivas, Lina
dc.contributor.authorPino, Eduardo
dc.contributor.authorGómez, Tatiana
dc.contributor.authorZapata, Paula A.
dc.date.accessioned2023-07-07T15:23:07Z
dc.date.available2023-07-07T15:23:07Z
dc.date.issued2022
dc.description.abstractLow-density polyethylene (LDPE) nanocomposites containing magnesium oxide (MgO) nanoparticles are obtained by melt mixing. MgO nanoparticles ca. 29 ± 2 nm are synthesized by sol–gel and organically modified on the surface with oleic acid (Mod-MgO), whose final concentration in the polymers is 3, 5, and 10 wt%. The presence of these nanoparticles did not affect the crystallization process of LDPE. However, Young's modulus increases with 10 wt% of Mod-MgO nanoparticles, rendering higher reinforcement effects with an increase as high as 48%. This affects the elongation at break, which decreases ca. 57% compared to neat LDPE. The storage and loss modulus of the LDPE/MgO and LDPE/Mod-MgO nanocomposites increases at room temperature and low temperatures ( 150 to 50C) compared to neat LDPE. SEM analysis showed that the organic modification of MgO nanoparticles improved their dispersion within the polymer matrix. Nanocomposites present antimicrobial properties against Escherichia coli, reaching an efficiency ca. 53%.
dc.description.versionVersión publicada
dc.identifier.citationCament, A, Moreno-Serna, V, Loyo, C, et al. Mechanical and antimicrobial properties of low-density-polyethylene/MgO nanocomposites. Polym Adv Technol. 2022; 33( 12): 4355- 4370. doi:10.1002/pat.5865
dc.identifier.doihttps://doi.org/10.1002/pat.5865
dc.identifier.urihttps://repositorio.udd.cl/handle/11447/7649
dc.language.isoen
dc.subjectAntimicrobial activity
dc.subjectLow-density polyethylene
dc.subjectMagnesium oxide (MgO)
dc.subjectNanocomposite
dc.titleMechanical and antimicrobial properties of low-density-polyethylene/MgO nanocomposites
dc.typeArticle
dcterms.accessRightsPrivado
dcterms.sourcePolymers for Advanced Technologies
dspace.entity.typePublication

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