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UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography
Typical resins for UV-assisted additive manufacturing (AM) are prepared from petroleum-based materials and therefore do not contribute to the growing AM industry trend of converting to sustainable bio-based materials. To satisfy society and industry’s demand for sustainability, renewable feedstocks...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8068002/ https://www.ncbi.nlm.nih.gov/pubmed/33917193 http://dx.doi.org/10.3390/polym13081195 |
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author | Barkane, Anda Platnieks, Oskars Jurinovs, Maksims Kasetaite, Sigita Ostrauskaite, Jolita Gaidukovs, Sergejs Habibi, Youssef |
author_facet | Barkane, Anda Platnieks, Oskars Jurinovs, Maksims Kasetaite, Sigita Ostrauskaite, Jolita Gaidukovs, Sergejs Habibi, Youssef |
author_sort | Barkane, Anda |
collection | PubMed |
description | Typical resins for UV-assisted additive manufacturing (AM) are prepared from petroleum-based materials and therefore do not contribute to the growing AM industry trend of converting to sustainable bio-based materials. To satisfy society and industry’s demand for sustainability, renewable feedstocks must be explored; unfortunately, there are not many options that are applicable to photopolymerization. Nevertheless, some vegetable oils can be modified to be suitable for UV-assisted AM technologies. In this work, extended study, through FTIR and photorheology measurements, of the UV-curing of epoxidized acrylate from soybean oil (AESO)-based formulations has been performed to better understand the photopolymerization process. The study demonstrates that the addition of appropriate functional comonomers like trimethylolpropane triacrylate (TMPTA) and the adjusting of the concentration of photoinitiator from 1% to 7% decrease the needed UV-irradiation time by up to 25%. Under optimized conditions, the optimal curing time was about 4 s, leading to a double bond conversion rate (DBC%) up to 80% and higher crosslinking density determined by the Flory–Rehner empirical approach. Thermal and mechanical properties were also investigated via TGA and DMA measurements that showed significant improvements of mechanical performances for all formulations. The properties were improved further upon the addition of the reactive diluents. After the thorough investigations, the prepared vegetable oil-based resin ink formulations containing reactive diluents were deemed suitable inks for UV-assisted AM, giving their appropriate viscosity. The validation was done by printing different objects with complex structures using a laser based stereolithography apparatus (SLA) printer. |
format | Online Article Text |
id | pubmed-8068002 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-80680022021-04-25 UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography Barkane, Anda Platnieks, Oskars Jurinovs, Maksims Kasetaite, Sigita Ostrauskaite, Jolita Gaidukovs, Sergejs Habibi, Youssef Polymers (Basel) Article Typical resins for UV-assisted additive manufacturing (AM) are prepared from petroleum-based materials and therefore do not contribute to the growing AM industry trend of converting to sustainable bio-based materials. To satisfy society and industry’s demand for sustainability, renewable feedstocks must be explored; unfortunately, there are not many options that are applicable to photopolymerization. Nevertheless, some vegetable oils can be modified to be suitable for UV-assisted AM technologies. In this work, extended study, through FTIR and photorheology measurements, of the UV-curing of epoxidized acrylate from soybean oil (AESO)-based formulations has been performed to better understand the photopolymerization process. The study demonstrates that the addition of appropriate functional comonomers like trimethylolpropane triacrylate (TMPTA) and the adjusting of the concentration of photoinitiator from 1% to 7% decrease the needed UV-irradiation time by up to 25%. Under optimized conditions, the optimal curing time was about 4 s, leading to a double bond conversion rate (DBC%) up to 80% and higher crosslinking density determined by the Flory–Rehner empirical approach. Thermal and mechanical properties were also investigated via TGA and DMA measurements that showed significant improvements of mechanical performances for all formulations. The properties were improved further upon the addition of the reactive diluents. After the thorough investigations, the prepared vegetable oil-based resin ink formulations containing reactive diluents were deemed suitable inks for UV-assisted AM, giving their appropriate viscosity. The validation was done by printing different objects with complex structures using a laser based stereolithography apparatus (SLA) printer. MDPI 2021-04-07 /pmc/articles/PMC8068002/ /pubmed/33917193 http://dx.doi.org/10.3390/polym13081195 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Barkane, Anda Platnieks, Oskars Jurinovs, Maksims Kasetaite, Sigita Ostrauskaite, Jolita Gaidukovs, Sergejs Habibi, Youssef UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography |
title | UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography |
title_full | UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography |
title_fullStr | UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography |
title_full_unstemmed | UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography |
title_short | UV-Light Curing of 3D Printing Inks from Vegetable Oils for Stereolithography |
title_sort | uv-light curing of 3d printing inks from vegetable oils for stereolithography |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8068002/ https://www.ncbi.nlm.nih.gov/pubmed/33917193 http://dx.doi.org/10.3390/polym13081195 |
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