Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose Microspheres
Sodium carboxymethylcellulose (CMC-Na) microparticles, containing corrosion inhibitor benzotriazole (BTA), were prepared using different spray drying processing parameters, with the purpose of future application in protective coatings for the delivery of corrosion inhibitors. The effects of the proc...
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| Format: | Article |
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MDPI AG
2022-02-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/12/4/1800 |
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| author | Francyelle Calegari Isabel Sousa Mário G. S. Ferreira Marcos A. C. Berton Cláudia E. B. Marino João Tedim |
| author_facet | Francyelle Calegari Isabel Sousa Mário G. S. Ferreira Marcos A. C. Berton Cláudia E. B. Marino João Tedim |
| author_sort | Francyelle Calegari |
| collection | DOAJ |
| description | Sodium carboxymethylcellulose (CMC-Na) microparticles, containing corrosion inhibitor benzotriazole (BTA), were prepared using different spray drying processing parameters, with the purpose of future application in protective coatings for the delivery of corrosion inhibitors. The effects of the processing parameters, such as inlet temperature and spray flow rate, are discussed herein. The biopolymeric CMC-Na microparticles obtained were characterized morphologically by SEM and TEM, and their release profile studied by UV-Vis. The results show that the prepared microparticles (microspheres) were homogeneous, spherically shaped and of a matrix-type nature. Additionally, it was observed that the inlet temperature and spray flow rate significantly influenced the release profiles and process yields. From the different process parameters tested, it was found that the best conditions to achieve higher process yields, higher encapsulation efficiencies and better release properties, were an inlet temperature of 170 °C, a pump rate of 2.5 mL/min, and a drying air-flow rate of 440 L/h. |
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| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-09T22:42:21Z |
| publishDate | 2022-02-01 |
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| series | Applied Sciences |
| spelling | doaj.art-2ae95e18c19048468e48364b700566132023-11-23T18:34:22ZengMDPI AGApplied Sciences2076-34172022-02-01124180010.3390/app12041800Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose MicrospheresFrancyelle Calegari0Isabel Sousa1Mário G. S. Ferreira2Marcos A. C. Berton3Cláudia E. B. Marino4João Tedim5Mechanical Engineering Department, Federal University of Paraná, Curitiba 81531-980, BrazilDepartment of Materials and Ceramic Engineering, CICECO–Aveiro Institute of Materials, University of Aveiro, Campus University of Santiago, 3810-193 Aveiro, PortugalDepartment of Materials and Ceramic Engineering, CICECO–Aveiro Institute of Materials, University of Aveiro, Campus University of Santiago, 3810-193 Aveiro, PortugalSENAI Institute of Innovation in Electrochemistry, Av. Comendador Franco 1341, Curitiba 80215-090, BrazilMechanical Engineering Department, Federal University of Paraná, Curitiba 81531-980, BrazilDepartment of Materials and Ceramic Engineering, CICECO–Aveiro Institute of Materials, University of Aveiro, Campus University of Santiago, 3810-193 Aveiro, PortugalSodium carboxymethylcellulose (CMC-Na) microparticles, containing corrosion inhibitor benzotriazole (BTA), were prepared using different spray drying processing parameters, with the purpose of future application in protective coatings for the delivery of corrosion inhibitors. The effects of the processing parameters, such as inlet temperature and spray flow rate, are discussed herein. The biopolymeric CMC-Na microparticles obtained were characterized morphologically by SEM and TEM, and their release profile studied by UV-Vis. The results show that the prepared microparticles (microspheres) were homogeneous, spherically shaped and of a matrix-type nature. Additionally, it was observed that the inlet temperature and spray flow rate significantly influenced the release profiles and process yields. From the different process parameters tested, it was found that the best conditions to achieve higher process yields, higher encapsulation efficiencies and better release properties, were an inlet temperature of 170 °C, a pump rate of 2.5 mL/min, and a drying air-flow rate of 440 L/h.https://www.mdpi.com/2076-3417/12/4/1800carboxymethylcellulosemicroencapsulationbenzotriazolespray dryingrelease studies |
| spellingShingle | Francyelle Calegari Isabel Sousa Mário G. S. Ferreira Marcos A. C. Berton Cláudia E. B. Marino João Tedim Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose Microspheres Applied Sciences carboxymethylcellulose microencapsulation benzotriazole spray drying release studies |
| title | Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose Microspheres |
| title_full | Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose Microspheres |
| title_fullStr | Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose Microspheres |
| title_full_unstemmed | Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose Microspheres |
| title_short | Influence of the Operating Conditions on the Release of Corrosion Inhibitors from Spray-Dried Carboxymethylcellulose Microspheres |
| title_sort | influence of the operating conditions on the release of corrosion inhibitors from spray dried carboxymethylcellulose microspheres |
| topic | carboxymethylcellulose microencapsulation benzotriazole spray drying release studies |
| url | https://www.mdpi.com/2076-3417/12/4/1800 |
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