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Self-healable bio-based epoxy resin from epoxidized palm oil

Epoxy resin is a thermoset with superior mechanical strength, thermal stability and dimensional stability, granted by the permanent crosslinking networks in the epoxy network. Despite its advantages, the rigid 3D epoxy resin precludes flow, resulting in the recycling and reprocessing of epoxy resin...

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Main Authors: Chong, Kar Lun, Lai, Jau Choy, Abd. Rahman, Roshanida, Zaid, Nadia Adrusa, Al-Saffar, Hazim
Format: Article
Published: Italian Association of Chemical Engineering - AIDIC 2021
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/96417/
http://dx.doi.org/10.3303/CET2189064
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spelling my.utm.964172022-07-18T11:50:14Z http://eprints.utm.my/id/eprint/96417/ Self-healable bio-based epoxy resin from epoxidized palm oil Chong, Kar Lun Lai, Jau Choy Abd. Rahman, Roshanida Zaid, Nadia Adrusa Al-Saffar, Hazim TP Chemical technology Epoxy resin is a thermoset with superior mechanical strength, thermal stability and dimensional stability, granted by the permanent crosslinking networks in the epoxy network. Despite its advantages, the rigid 3D epoxy resin precludes flow, resulting in the recycling and reprocessing of epoxy resin becomes impossible. The incorporation of covalent adaptable network (CAN) into the epoxy resin enable their network topology to be rearranged and permits recycling of epoxy resin. This project highlights the self-healing efficiency as well as mechanical and thermal properties of epoxy resin synthesized from various stoichiometric ratios (R) of curing agent (citric acid monohydrate) to epoxidized palm oil (EPO). EPO was cross-linked with citric acid monohydrate (CA) without the usage of a catalyst under specific curing condition to produce self-healable epoxy resin. Fourier - Transformed Infrared Spectroscopy (FTIR) analysis shows that the epoxide group in EPO successfully reacted with carboxylic groups in (CA) via ring-opening reaction to form ß - hydroxyester networks. Thermogravimetric Analysis (TGA) analysis reveals the thermal stability of each formulation, indicating that R 0.5 possess the highest crystallinity and R 1.5 has the highest Tg (8.09 °C) among the others. Interestingly, R 1.0 which is the lowest in terms of thermal stability exhibited the best self-healing performance. To further improve the overall properties of the synthesized epoxy thermoset, reinforcement materials need to be added during the synthesis process. Italian Association of Chemical Engineering - AIDIC 2021 Article PeerReviewed Chong, Kar Lun and Lai, Jau Choy and Abd. Rahman, Roshanida and Zaid, Nadia Adrusa and Al-Saffar, Hazim (2021) Self-healable bio-based epoxy resin from epoxidized palm oil. Chemical Engineering Transactions, 89 . pp. 379-384. ISSN 2283-9216 http://dx.doi.org/10.3303/CET2189064
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Chong, Kar Lun
Lai, Jau Choy
Abd. Rahman, Roshanida
Zaid, Nadia Adrusa
Al-Saffar, Hazim
Self-healable bio-based epoxy resin from epoxidized palm oil
description Epoxy resin is a thermoset with superior mechanical strength, thermal stability and dimensional stability, granted by the permanent crosslinking networks in the epoxy network. Despite its advantages, the rigid 3D epoxy resin precludes flow, resulting in the recycling and reprocessing of epoxy resin becomes impossible. The incorporation of covalent adaptable network (CAN) into the epoxy resin enable their network topology to be rearranged and permits recycling of epoxy resin. This project highlights the self-healing efficiency as well as mechanical and thermal properties of epoxy resin synthesized from various stoichiometric ratios (R) of curing agent (citric acid monohydrate) to epoxidized palm oil (EPO). EPO was cross-linked with citric acid monohydrate (CA) without the usage of a catalyst under specific curing condition to produce self-healable epoxy resin. Fourier - Transformed Infrared Spectroscopy (FTIR) analysis shows that the epoxide group in EPO successfully reacted with carboxylic groups in (CA) via ring-opening reaction to form ß - hydroxyester networks. Thermogravimetric Analysis (TGA) analysis reveals the thermal stability of each formulation, indicating that R 0.5 possess the highest crystallinity and R 1.5 has the highest Tg (8.09 °C) among the others. Interestingly, R 1.0 which is the lowest in terms of thermal stability exhibited the best self-healing performance. To further improve the overall properties of the synthesized epoxy thermoset, reinforcement materials need to be added during the synthesis process.
format Article
author Chong, Kar Lun
Lai, Jau Choy
Abd. Rahman, Roshanida
Zaid, Nadia Adrusa
Al-Saffar, Hazim
author_facet Chong, Kar Lun
Lai, Jau Choy
Abd. Rahman, Roshanida
Zaid, Nadia Adrusa
Al-Saffar, Hazim
author_sort Chong, Kar Lun
title Self-healable bio-based epoxy resin from epoxidized palm oil
title_short Self-healable bio-based epoxy resin from epoxidized palm oil
title_full Self-healable bio-based epoxy resin from epoxidized palm oil
title_fullStr Self-healable bio-based epoxy resin from epoxidized palm oil
title_full_unstemmed Self-healable bio-based epoxy resin from epoxidized palm oil
title_sort self-healable bio-based epoxy resin from epoxidized palm oil
publisher Italian Association of Chemical Engineering - AIDIC
publishDate 2021
url http://eprints.utm.my/id/eprint/96417/
http://dx.doi.org/10.3303/CET2189064
_version_ 1739828076598001664
score 13.211869

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