Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed
Graphene oxide microcapsules (GOMs) have been prepared through Pickering emulsion method by varying the disperse speed to study its effect on the GOM’s size. The GOMs were characterized through phase separation observation, polarized optical microscope (POM), and particle size analyser (PSA). Phase...
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International Islamic University Malaysia-IIUM
2021
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Online Access: | http://eprints.utm.my/id/eprint/97854/1/NorhasnidawaniJohari2021_GrapheneOxideMicrocapsulesGOMsWithLinseedOil.pdf http://eprints.utm.my/id/eprint/97854/ http://dx.doi.org/10.31436/IIUMEJ.V22I1.1426 |
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my.utm.978542022-11-07T09:58:56Z http://eprints.utm.my/id/eprint/97854/ Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed Sahir, Nurul Nadiah Hassan, Noor Azlina Hassan, Norita Johari, Norhasnidawani T Technology (General) Graphene oxide microcapsules (GOMs) have been prepared through Pickering emulsion method by varying the disperse speed to study its effect on the GOM’s size. The GOMs were characterized through phase separation observation, polarized optical microscope (POM), and particle size analyser (PSA). Phase separation observation showed more viscous and cloudy emulsion was produced when the disperse speed was increased. After 24 hours, only 800 rpm emulsion did not show any phase separation. POM characterization depicted that increasing the emulsification energy led to the finer emulsion with the 1200 rpm sample showing the smallest microcapsule size of around 8 µm. However, PSA analysis suggested that although the disperse speed controls the GOMs size, the amount of GO in the emulsion plays an important role for the microcapsule to maintain its stability. Emulsion produced at 800 rpm possesses satisfactory stability with GOMs diameter of 11.15 µm. The result also suggested that graphene oxide encapsulated linseed oil may act as a promising candidate for healing microcapsules in a self-healing coating system. International Islamic University Malaysia-IIUM 2021 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/97854/1/NorhasnidawaniJohari2021_GrapheneOxideMicrocapsulesGOMsWithLinseedOil.pdf Sahir, Nurul Nadiah and Hassan, Noor Azlina and Hassan, Norita and Johari, Norhasnidawani (2021) Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed. IIUM Engineering Journal, 22 (1). pp. 213-222. ISSN 1511-788X http://dx.doi.org/10.31436/IIUMEJ.V22I1.1426 DOI : 10.31436/IIUMEJ.V22I1.1426 |
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T Technology (General) Sahir, Nurul Nadiah Hassan, Noor Azlina Hassan, Norita Johari, Norhasnidawani Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed |
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Graphene oxide microcapsules (GOMs) have been prepared through Pickering emulsion method by varying the disperse speed to study its effect on the GOM’s size. The GOMs were characterized through phase separation observation, polarized optical microscope (POM), and particle size analyser (PSA). Phase separation observation showed more viscous and cloudy emulsion was produced when the disperse speed was increased. After 24 hours, only 800 rpm emulsion did not show any phase separation. POM characterization depicted that increasing the emulsification energy led to the finer emulsion with the 1200 rpm sample showing the smallest microcapsule size of around 8 µm. However, PSA analysis suggested that although the disperse speed controls the GOMs size, the amount of GO in the emulsion plays an important role for the microcapsule to maintain its stability. Emulsion produced at 800 rpm possesses satisfactory stability with GOMs diameter of 11.15 µm. The result also suggested that graphene oxide encapsulated linseed oil may act as a promising candidate for healing microcapsules in a self-healing coating system. |
format |
Article |
author |
Sahir, Nurul Nadiah Hassan, Noor Azlina Hassan, Norita Johari, Norhasnidawani |
author_facet |
Sahir, Nurul Nadiah Hassan, Noor Azlina Hassan, Norita Johari, Norhasnidawani |
author_sort |
Sahir, Nurul Nadiah |
title |
Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed |
title_short |
Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed |
title_full |
Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed |
title_fullStr |
Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed |
title_full_unstemmed |
Graphene oxide microcapsules (GOMs) with linseed oil core via pickering emulsion method: Effect of disperse speed |
title_sort |
graphene oxide microcapsules (goms) with linseed oil core via pickering emulsion method: effect of disperse speed |
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International Islamic University Malaysia-IIUM |
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2021 |
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http://eprints.utm.my/id/eprint/97854/1/NorhasnidawaniJohari2021_GrapheneOxideMicrocapsulesGOMsWithLinseedOil.pdf http://eprints.utm.my/id/eprint/97854/ http://dx.doi.org/10.31436/IIUMEJ.V22I1.1426 |
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13.18916 |