Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization process
Typically, nano-emulsions are prepared in batch high-speed homogenization or ultrasound processes and polymerized afterwards in batch reactors. However, fully continuous processes have the potential to decrease production costs and energy consumption compared to batch processes. This research thus f...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2023-12-01
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| Series: | Tetrahedron Green Chem |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2773223123000225 |
| _version_ | 1797342122733469696 |
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| author | Jonas Loncke Arne Vancleef Wim Dermaut Leen Braeken Leen C.J. Thomassen |
| author_facet | Jonas Loncke Arne Vancleef Wim Dermaut Leen Braeken Leen C.J. Thomassen |
| author_sort | Jonas Loncke |
| collection | DOAJ |
| description | Typically, nano-emulsions are prepared in batch high-speed homogenization or ultrasound processes and polymerized afterwards in batch reactors. However, fully continuous processes have the potential to decrease production costs and energy consumption compared to batch processes. This research thus focuses on implementing ultrasound into a fully continuous emulsification and nano-emulsion polymerization process to obtain latex nano-particles from butylmethacrylate and ethylene glycol dimethacrylate. The goal of this research is to produce nano-emulsions and nano-particles with the smallest obtainable size and polydispersity in a fully continuous two-stage process. In the first stage or emulsification stage, parameters like flowrate, residence time and acoustic power are varied to influence and determine the optimal energy density. In second stage or reaction stage, residence time and reaction temperature are studied to obtain particles of monodisperse sizes. Samples produced in both stages are analysed with Dynamic Light Scattering to measure the average size and polydispersity (PdI) of the emulsion droplets and particles. Emulsification results indicate that droplet size and PdI decreases at increasing energy densities (J/ml) until 60 J/ml after which a constant droplet size of 150 nm and PdI of 0.230 are reached. Furthermore, a particle size of 50 nm and PdI of 0.080 were achieved in both batch and continuous polymerization reactors after 5 min at 85 °C. By implementing the most optimal process parameters, small emulsion droplets and particles were obtained more energy efficient in a shorter emulsification and reaction time compared to literature ultrasound assisted nano-emulsion polymerization processes. |
| first_indexed | 2024-03-08T10:28:50Z |
| format | Article |
| id | doaj.art-bd3d31e847fa459eab1236dd2601dabe |
| institution | Directory Open Access Journal |
| issn | 2773-2231 |
| language | English |
| last_indexed | 2024-03-08T10:28:50Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Tetrahedron Green Chem |
| spelling | doaj.art-bd3d31e847fa459eab1236dd2601dabe2024-01-27T07:03:14ZengElsevierTetrahedron Green Chem2773-22312023-12-012100023Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization processJonas Loncke0Arne Vancleef1Wim Dermaut2Leen Braeken3Leen C.J. Thomassen4KU Leuven, Department of Chemical Engineering, Research Unit CIPT, Campuslaan 25, B-3590, Diepenbeek, Belgium; Corresponding author.KU Leuven, Department of Chemical Engineering, Research Unit CIPT, Campuslaan 25, B-3590, Diepenbeek, BelgiumR&D Chemical Process Development, Agfa, Septestraat 27, 2640, Mortsel, BelgiumKU Leuven, Department of Chemical Engineering, Research Unit CIPT, Campuslaan 25, B-3590, Diepenbeek, BelgiumKU Leuven, Department of Chemical Engineering, Research Unit CIPT, Campuslaan 25, B-3590, Diepenbeek, BelgiumTypically, nano-emulsions are prepared in batch high-speed homogenization or ultrasound processes and polymerized afterwards in batch reactors. However, fully continuous processes have the potential to decrease production costs and energy consumption compared to batch processes. This research thus focuses on implementing ultrasound into a fully continuous emulsification and nano-emulsion polymerization process to obtain latex nano-particles from butylmethacrylate and ethylene glycol dimethacrylate. The goal of this research is to produce nano-emulsions and nano-particles with the smallest obtainable size and polydispersity in a fully continuous two-stage process. In the first stage or emulsification stage, parameters like flowrate, residence time and acoustic power are varied to influence and determine the optimal energy density. In second stage or reaction stage, residence time and reaction temperature are studied to obtain particles of monodisperse sizes. Samples produced in both stages are analysed with Dynamic Light Scattering to measure the average size and polydispersity (PdI) of the emulsion droplets and particles. Emulsification results indicate that droplet size and PdI decreases at increasing energy densities (J/ml) until 60 J/ml after which a constant droplet size of 150 nm and PdI of 0.230 are reached. Furthermore, a particle size of 50 nm and PdI of 0.080 were achieved in both batch and continuous polymerization reactors after 5 min at 85 °C. By implementing the most optimal process parameters, small emulsion droplets and particles were obtained more energy efficient in a shorter emulsification and reaction time compared to literature ultrasound assisted nano-emulsion polymerization processes.http://www.sciencedirect.com/science/article/pii/S2773223123000225Ultrasound emulsificationContinuous emulsificationNano-emulsion polymerizationNano-particles |
| spellingShingle | Jonas Loncke Arne Vancleef Wim Dermaut Leen Braeken Leen C.J. Thomassen Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization process Tetrahedron Green Chem Ultrasound emulsification Continuous emulsification Nano-emulsion polymerization Nano-particles |
| title | Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization process |
| title_full | Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization process |
| title_fullStr | Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization process |
| title_full_unstemmed | Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization process |
| title_short | Development and characterization of a continuous ultrasound emulsification and nano-emulsion polymerization process |
| title_sort | development and characterization of a continuous ultrasound emulsification and nano emulsion polymerization process |
| topic | Ultrasound emulsification Continuous emulsification Nano-emulsion polymerization Nano-particles |
| url | http://www.sciencedirect.com/science/article/pii/S2773223123000225 |
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