Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor Oil
The depletion of oil reserves and concerns about the environmental impact of the use and incorrect disposal of mineral lubricants have been promoting the development of bio-based lubricants. In this study, biolubricants obtained from fatty acids of castor oil were synthesized by esterification (>...
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| Language: | English |
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MDPI AG
2023-01-01
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| Series: | Lubricants |
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| Online Access: | https://www.mdpi.com/2075-4442/11/2/57 |
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| author | Paulo Roberto Campos Flexa Ribeiro Filho Matheus Rocha do Nascimento Silvia Shelly Otaviano da Silva Francisco Murilo Tavares de Luna Enrique Rodríguez-Castellón Célio Loureiro Cavalcante |
| author_facet | Paulo Roberto Campos Flexa Ribeiro Filho Matheus Rocha do Nascimento Silvia Shelly Otaviano da Silva Francisco Murilo Tavares de Luna Enrique Rodríguez-Castellón Célio Loureiro Cavalcante |
| author_sort | Paulo Roberto Campos Flexa Ribeiro Filho |
| collection | DOAJ |
| description | The depletion of oil reserves and concerns about the environmental impact of the use and incorrect disposal of mineral lubricants have been promoting the development of bio-based lubricants. In this study, biolubricants obtained from fatty acids of castor oil were synthesized by esterification (>wt.%93), epoxidation (>wt.%92), and oxirane ring opening reactions using water (>wt.%92) or 2-ethylhexanol (>wt.%94) as nucleophilic agents. The frictional characteristics of the synthesized samples were obtained through tribological tests performed in a four-ball tester and compared with a commercial mineral oil. The sample obtained through oxirane ring opening with water showed the best frictional performance (FC = 0.0699 ± 0.0007) among the prepared samples, with equivalent wear rate (WSD = 281.2 ± 5.54 μm) and ca. 20% lower friction coefficient when compared to the commercial mineral oil, indicating its great potential for replacing mineral fossil oils. |
| first_indexed | 2024-03-11T08:33:06Z |
| format | Article |
| id | doaj.art-fad38cf329034168abfa90cfc34c5360 |
| institution | Directory Open Access Journal |
| issn | 2075-4442 |
| language | English |
| last_indexed | 2024-03-11T08:33:06Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Lubricants |
| spelling | doaj.art-fad38cf329034168abfa90cfc34c53602023-11-16T21:43:46ZengMDPI AGLubricants2075-44422023-01-011125710.3390/lubricants11020057Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor OilPaulo Roberto Campos Flexa Ribeiro Filho0Matheus Rocha do Nascimento1Silvia Shelly Otaviano da Silva2Francisco Murilo Tavares de Luna3Enrique Rodríguez-Castellón4Célio Loureiro Cavalcante5Grupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Campus do Pici, Universidade Federal do Ceará, Fortaleza 60455760, BrazilGrupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Campus do Pici, Universidade Federal do Ceará, Fortaleza 60455760, BrazilGrupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Campus do Pici, Universidade Federal do Ceará, Fortaleza 60455760, BrazilGrupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Campus do Pici, Universidade Federal do Ceará, Fortaleza 60455760, BrazilDepartamento de Química Inorgánica, Cristalografia y Mineralogía, Facultad de Ciencias, Campus Teatino, Universidad de Málaga, 29071 Málaga, SpainGrupo de Pesquisa em Separações por Adsorção (GPSA), Departamento de Engenharia Química, Campus do Pici, Universidade Federal do Ceará, Fortaleza 60455760, BrazilThe depletion of oil reserves and concerns about the environmental impact of the use and incorrect disposal of mineral lubricants have been promoting the development of bio-based lubricants. In this study, biolubricants obtained from fatty acids of castor oil were synthesized by esterification (>wt.%93), epoxidation (>wt.%92), and oxirane ring opening reactions using water (>wt.%92) or 2-ethylhexanol (>wt.%94) as nucleophilic agents. The frictional characteristics of the synthesized samples were obtained through tribological tests performed in a four-ball tester and compared with a commercial mineral oil. The sample obtained through oxirane ring opening with water showed the best frictional performance (FC = 0.0699 ± 0.0007) among the prepared samples, with equivalent wear rate (WSD = 281.2 ± 5.54 μm) and ca. 20% lower friction coefficient when compared to the commercial mineral oil, indicating its great potential for replacing mineral fossil oils.https://www.mdpi.com/2075-4442/11/2/57tribologybiolubricantoxirane ring opening |
| spellingShingle | Paulo Roberto Campos Flexa Ribeiro Filho Matheus Rocha do Nascimento Silvia Shelly Otaviano da Silva Francisco Murilo Tavares de Luna Enrique Rodríguez-Castellón Célio Loureiro Cavalcante Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor Oil Lubricants tribology biolubricant oxirane ring opening |
| title | Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor Oil |
| title_full | Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor Oil |
| title_fullStr | Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor Oil |
| title_full_unstemmed | Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor Oil |
| title_short | Synthesis and Frictional Characteristics of Bio-Based Lubricants Obtained from Fatty Acids of Castor Oil |
| title_sort | synthesis and frictional characteristics of bio based lubricants obtained from fatty acids of castor oil |
| topic | tribology biolubricant oxirane ring opening |
| url | https://www.mdpi.com/2075-4442/11/2/57 |
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