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In-depth rheological characterization of tungsten sol-gel inks for inkjet printing
ID
Opara Krašovec, Urša
(
Author
),
ID
Vidmar, Tjaša
(
Author
),
ID
Klanjšek Gunde, Marta
(
Author
),
ID
Cerc Korošec, Romana
(
Author
),
ID
Slemenik Perše, Lidija
(
Author
)
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https://www.mdpi.com/2079-6412/12/2/112
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Abstract
The inkjet printing of the functional materials prepared by the sol-gel route is gaining the attention for the production of the variety of the applications not limited to the printed boards, displays, smart labels, smart packaging, sensors and solar cells. However, due to the gelation process associated with the changes from Newtonian to non-Newtonian fluid the inkjet printing of the sol-gel inks is extremely complex. In this study we reveal in-depth rheological characterization of the WO$_3$ sols in which we simulate the conditions of the inkjet printing process at different temperature of the cartridge (20–60 °C) by analyzing the structural and rheological changes taking place during the gelation of the tungsten oxide (WO$_3$) ink. The results provide the information on the stability of the sol and a better insight on the effects of the temperature on the gelation time. Moreover, the information on the temperature and the time window at which the inkjet printing of the sol-gel inks could be performed without clogging were obtained. The WO$_3$ ink was stable in a beaker and exhibited Newtonian flow behavior at room temperature over 3 weeks, while the gelation time decreased exponentially with increasing temperature down to 0.55 h at 60 °C.
Language:
English
Keywords:
rheology
,
inkjet printing
,
tungsten oxide
,
sol-gel
Work type:
Article
Typology:
1.01 - Original Scientific Article
Organization:
FE - Faculty of Electrical Engineering
FKKT - Faculty of Chemistry and Chemical Technology
FS - Faculty of Mechanical Engineering
Publication status:
Published
Publication version:
Version of Record
Year:
2022
Number of pages:
15 str.
Numbering:
Vol. 12, iss. 2, art. 112
PID:
20.500.12556/RUL-137098
UDC:
620.1/.2
ISSN on article:
2079-6412
DOI:
10.3390/coatings12020112
COBISS.SI-ID:
96639491
Publication date in RUL:
01.06.2022
Views:
678
Downloads:
94
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Record is a part of a journal
Title:
Coatings
Shortened title:
Coatings
Publisher:
MDPI AG
ISSN:
2079-6412
COBISS.SI-ID:
523035673
Licences
License:
CC BY 4.0, Creative Commons Attribution 4.0 International
Link:
http://creativecommons.org/licenses/by/4.0/
Description:
This is the standard Creative Commons license that gives others maximum freedom to do what they want with the work as long as they credit the author.
Licensing start date:
01.02.2022
Secondary language
Language:
Slovenian
Keywords:
materiali
,
sol-gel
,
newtonska tekočina
,
aplikacije
Projects
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0264
Name:
Trajnostni polimerni materiali in tehnologije
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0244
Name:
Mikrostrukture in nanostrukture
Funder:
ARRS - Slovenian Research Agency
Project number:
P2-0393
Name:
Napredni materiali za nizkoogljično in trajnostno družbo
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