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Incorporation of metal-based nanoadditives into the PLA matrix : effect of surface properties on antibacterial activity and mechanical performance of PLA nanoadditive films
ID
Pušnik Črešnar, Klementina
(
Avtor
),
ID
Aulova, Alexandra
(
Avtor
),
ID
Bikiaris, Dimitrios N.
(
Avtor
),
ID
Lambropoulou, Dimitra A.
(
Avtor
),
ID
Kuzmič, Katja
(
Avtor
),
ID
Fras Zemljič, Lidija
(
Avtor
)
PDF - Predstavitvena datoteka,
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(5,76 MB)
MD5: 066CBDCBF7FFDCB15ABA2555C50ACF39
URL - Izvorni URL, za dostop obiščite
https://www.mdpi.com/1420-3049/26/14/4161
Galerija slik
Izvleček
In this work, the modification process of poly(lactic acid) (PLA) with metal-based nanoparticle (NPs) additives (Ag, ZnO, TiO$_2$) at different loading (0.5, 1.0, and 2.5 wt%) and by melt-mix extrusion method followed by film formation as one of the advantageous techniques for industrial application have been investigated. PLA nanoparticle composite films (PLA-NPs) of PLA-Ag, PLA-ZnO, PLA-TiO$_2$ were fabricated, allowing convenient dispersion of NPs within the PLA matrix to further pursue the challenge of investigating the surface properties of PLA-NPs reinforced plastics (as films) for the final functional properties, such as antimicrobial activity and surface mechanical properties. The main objective was to clarify how the addition of NPs to the PLA during the melt extrusion process affects the chemistry, morphology, and wettability of the surface and its further influence on the antibacterial efficiency and mechanical properties of the PLA-NPs. Therefore, the effect of Ag, ZnO, and TiO$_2$ NPs incorporation on the morphology (SEM), elemental mapping analysis (SEM-EDX), roughness, surface free energy (SFE) of PLA-NPs measured by goniometry and calculated by OWRK (Owens, Wendt, Rabel, and Kaelble) model was evaluated and correlated with the final functional properties such as antimicrobial activity and surface mechanical properties. The developed PLA-metal-based nanocomposites, with improved mechanical and antimicrobial surface properties, could be used as sustainable and biodegradable materials, offering desirable multifunctionalities not only for food packaging but also for cosmetics and hygiene products, as well as for broader plastic products where antimicrobial activity is desirable.
Jezik:
Angleški jezik
Ključne besede:
poly(lactic acid)
,
nanoparticles
,
composite additive films
,
SEM analysis
,
surface free energy calculation
,
antibacterial activity
,
nanoindentation
Vrsta gradiva:
Članek v reviji
Tipologija:
1.01 - Izvirni znanstveni članek
Organizacija:
FS - Fakulteta za strojništvo
Status publikacije:
Objavljeno
Različica publikacije:
Objavljena publikacija
Leto izida:
2021
Št. strani:
28 str.
Številčenje:
Vol. 26, iss. 14, art. 4161
PID:
20.500.12556/RUL-135721
UDK:
677.017:620.3
ISSN pri članku:
1420-3049
DOI:
10.3390/molecules26144161
COBISS.SI-ID:
69842179
Datum objave v RUL:
29.03.2022
Število ogledov:
678
Število prenosov:
127
Metapodatki:
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Objavi na:
Gradivo je del revije
Naslov:
Molecules
Skrajšan naslov:
Molecules
Založnik:
MDPI
ISSN:
1420-3049
COBISS.SI-ID:
18462981
Licence
Licenca:
CC BY 4.0, Creative Commons Priznanje avtorstva 4.0 Mednarodna
Povezava:
http://creativecommons.org/licenses/by/4.0/deed.sl
Opis:
To je standardna licenca Creative Commons, ki daje uporabnikom največ možnosti za nadaljnjo uporabo dela, pri čemer morajo navesti avtorja.
Začetek licenciranja:
08.07.2021
Sekundarni jezik
Jezik:
Slovenski jezik
Ključne besede:
nanodelci
,
kompozitni dodajalni filmi
,
SEM analiza
,
antibakterijska aktivnost
,
nanovtiskovanje
Projekti
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0264
Naslov:
Trajnostni polimerni materiali in tehnologije
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Ministry of Education, Science, and Sport
Številka projekta:
OP20.04343
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
P2-0118
Naslov:
Tekstilna kemija
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
J2-9443
Naslov:
Reološko obnašanje in mehanske lastnosti pri procesiranju polimernih sistemov z visoko koncentracijo trdnih delcev
Financer:
EC - European Commission
Program financ.:
Competitiveness, Entrepreneurship and Innovation
Financer:
Drugi - Drug financer ali več financerjev
Program financ.:
Greece
Številka projekta:
T2EDK-00137
Financer:
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije
Številka projekta:
Z2-1865
Naslov:
Nevronske mreže za določitev lezenja polimera pri različnih temperaturah
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