Influence of a non-reactive additive on the photocuring and 3D-VAT printing processes of PEGDA: complementary studies
Authors:
- Wiktoria Tomal,
- Joanna Ortyl
Abstract
Photopolymerization processes are currently-one of the key methods for obtaining functional materials, and the possibility of applying this processes to additive technologies opens up new opportunities, especially for the medical market. 3D-VAT printing, including techniques such as digital light processing (DLP) and stereolithography (SLA), makes it possible to obtain materials with the desired geometry, high optical resolution and rapid layer-by-layer production time, which was not previously possible with classical techniques used in biomedicine. Therefore, understanding the fundamental relationships between the components of photosensitive compositions, including the initiator, monomer/oligomer and additives, is crucial to the applicational success of bioprinting. Hence, this paper investigates the effect of a non-reactive additive to the bioresin on the photopolymerization process both in situ and in 3D-VAT printing. The following components were selected as the model system for the study: poly(ethylene glycol) diacrylate (PEGDA), lithium phenyl-2,4,6trimethylbenzoylphosphinate (TPO-Li), and as an unreactive ingredient – water, in varying amounts. This paper presents a comprehensive research procedure using different techniques: real-time FTIR, photo-DSC and photo-rheology, to precisely quantify the relationship: kinetic of the photopolymerization process/shrinkage of the material vs the amount of non-reactive additive. The possibility of using the investigated bioresins to create three-dimensional materials was also studied. The materials, obtained by 3D-VAT printing using DLP technology, were compared in terms of the achieved optical resolution and polymer shrinkage.
- Record ID
- CUT2722e542a96c40a2b07753ab5795fadb
- Publication categories
- ;
- Author
- Journal series
- European Polymer Journal, ISSN 0014-3057, e-ISSN 1873-1945
- Issue year
- 2022
- Vol
- 180
- Pages
- [1-13]
- Article number
- 111588
- Other elements of collation
- fot.; rys.; tab.; wykr.; Bibliografia (na s.) - 11-13; Bibliografia (liczba pozycji) - 78; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 180
- Keywords in English
- TPO-Li, PEGDA, photopolymerization, kinetic of the process, non-reactive agent, 3D printing, DLP
- ASJC Classification
- ; ;
- DOI
- DOI:10.1016/j.eurpolymj.2022.111588 Opening in a new tab
- URL
- https://www.sciencedirect.com/science/article/pii/S0014305722005924 Opening in a new tab
- Related project
- Implementacja fotogeneratorów mocnych kwasów protonowych (PAG-s) opartych o innowacyjne molekuły akcelerujące do aplikacji w przemyśle fotoutwardzalnych powłok polimerowych. . Project leader at PK: , ,
Projects financed by NCRD [Projekty finansowane przez NCBiR (NCBR (] - Synteza i badania spektroskopowe nowych rozpuszczalnych w wodzie fotoinicjatorów wolnorodnikowych dedykowanych do otrzymywania mikrofabrykowanych struktur hydrożelowych jako pozakomórkowej matrycy do biodruku 3D w świetle widzialnym. . Project leader at PK: , ,
- Molecular design, synthesis and application of photoinitiator-catalysts (PICs) for photopolymerization reactions. . Project leader at PK: , ,
- Implementacja fotogeneratorów mocnych kwasów protonowych (PAG-s) opartych o innowacyjne molekuły akcelerujące do aplikacji w przemyśle fotoutwardzalnych powłok polimerowych. . Project leader at PK: , ,
- Language
- eng (en) English
- License
- Score (nominal)
- 100
- Score source
- journalList
- Score
- Publication indicators
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT2722e542a96c40a2b07753ab5795fadb/
- URN
urn:pkr-prod:CUT2722e542a96c40a2b07753ab5795fadb
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.