Your browser does not allow JavaScript!
JavaScript is necessary for the proper functioning of this website. Please enable JavaScript or use a modern browser.
Open Science Slovenia
Open Science
DiKUL
slv
|
eng
Search
Browse
New in RUL
About RUL
In numbers
Help
Sign in
Integration of wood-based components – cellulose nanofibrils and tannic acid - into a poly(vinyl alcohol) matrix to improve functional properties
ID
Osolnik, Urša
(
Author
),
ID
Vek, Viljem
(
Author
),
ID
Cerc Korošec, Romana
(
Author
),
ID
Oven, Primož
(
Author
),
ID
Poljanšek, Ida
(
Author
)
PDF - Presentation file,
Download
(4,70 MB)
MD5: 743DB6E36B8D804B709B7444057F446D
URL - Source URL, Visit
https://www.sciencedirect.com/science/article/pii/S0141813023053941
Image galllery
Abstract
Poly(vinyl alcohol) (PVA) biocomposite films reinforced with cellulose nanofibrils (CNF) and biologically active tannic acid (TA) were prepared. The influence of different concentrations of CNF and TA in the PVA polymer matrix was investigated in terms of mechanical properties, thermal properties and hydrophobicity improvement of the prepared films. The results showed that in all cases the addition of CNF and TA improved the values of tensile strength and elastic modulus. The PVA film with 10 % CNF exhibited a 30 % higher tensile strength, and the three-component PVA film with 2 % CNF and 10 % TA (P2C10T) exhibited a 40 % higher tensile strength compared to the neat PVA film. The thermal properties (T$_g$, T$_{onset}$) of the PVA biocomposite films were greatly improved, with a significant effect observed for the three-component PVA films. The T$_g$ of the PVA film with 10 % CNF and 10 % TA was 87 °C, 12 °C higher than that of the neat PVA film. For three-component PVA biocomposites with 4 % and 6 % CNF and with all weight percentages of TA, the T$_{onset}$ shifted to a higher temperature range by about 30 °C compared to the neat PVA film. The PVA film with 2 % CNF and 10 % TA exhibited about a 20° higher contact angle than the neat PVA film. Moreover, the addition of both fillers to the PVA matrix resulted in PVA biocomposites with lower water absorption. PVA film with 10 % TA absorbed about 90 % less water and PVA film with 10 % CNF and 10 % TA absorbed about 80 % less water than the neat PVA film after the films were soaked in water for one hour. The better properties of the composite films produced are due to hydrogen and ester bonds between the components of the composite, which was confirmed by FT-IR spectroscopy. Antioxidant effective films were also obtained due to the biologically active TA to the PVA and PVA/CNF systems.
Language:
English
Keywords:
cellulose nanofibrils
,
tannic acid
,
biocomposite
,
films
,
PVA
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
BF - Biotechnical Faculty
FKKT - Faculty of Chemistry and Chemical Technology
Publication status:
Published
Publication version:
Version of Record
Year:
2024
Number of pages:
13 str.
Numbering:
Vol. 256, pt. 2, art. 128495
PID:
20.500.12556/RUL-152968
UDC:
630*8
ISSN on article:
1879-0003
DOI:
10.1016/j.ijbiomac.2023.128495
COBISS.SI-ID:
176367619
Publication date in RUL:
13.12.2023
Views:
330
Downloads:
37
Metadata:
Cite this work
Plain text
BibTeX
EndNote XML
EndNote/Refer
RIS
ABNT
ACM Ref
AMA
APA
Chicago 17th Author-Date
Harvard
IEEE
ISO 690
MLA
Vancouver
:
Copy citation
Share:
Record is a part of a journal
Title:
International journal of biological macromolecules
Shortened title:
Int. j. biol. macromol.
Publisher:
Elsevier
ISSN:
1879-0003
COBISS.SI-ID:
107163139
Licences
License:
CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:
http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:
The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.
Secondary language
Language:
Slovenian
Keywords:
celulozne nanofibrile
,
taninska kislina
,
biokompoziti
,
filmi
,
PVA
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
P4-0015
Name:
Les in lignocelulozni kompoziti
Funder:
ARRS - Slovenian Research Agency
Project number:
P1-0134
Name:
Kemija za trajnostni razvoj
Funder:
ARRS - Slovenian Research Agency
Project number:
L4-2623
Name:
Pridobivanje ekstraktov grč in skorje z visoko vsebnostjo polifenolov iz manj izkoriščene biomase bele jelke
Funder:
ARRS - Slovenian Research Agency
Project number:
V4-2017
Name:
Izboljšanje konkurenčnosti slovenske gozdno-lesne verige v kontekstu podnebnih sprememb in prehoda v nizkoogljično družbo
Funder:
ARRS - Slovenian Research Agency
Project number:
J2-1723
Name:
Katalitska pretvorba lignina v bioosnovane polimerne gradnike z uporabo CO2 (CaLiBration)
Similar documents
Similar works from RUL:
Similar works from other Slovenian collections:
Back