The study of epoxidized rapeseed oil used as a potential biodegradable lubricant

Wu, Xuedong; Zhang, Xingang; Yang, Sui; Chen, Haigang; Wang, Dapu

doi:10.1007/s11746-000-0089-2

Cited by 161 publications

(120 citation statements)

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“…Table 2 lists the physico-chemical and lubricant properties of jatropha and soybean oils and their corresponding epoxy oils. Density and viscosity of epoxidised oils are more than their original oils due to their high molecular weight, more polar structure and stronger interactions between molecules 11 . Viscosity index of epoxy oils is less compared to their virgin oils.…”

Section: Figmentioning

confidence: 99%

“…These changes can significantly increase the performance of a lubricant material 8,9 . The improvement of lubricity properties of triglycerides upon the introduction of epoxy has also been demonstrated 10,11 .…”

Section: Introductionmentioning

confidence: 97%

“…The use of epoxidized unsaturated fatty acids FA as metal working fluids 14 and epoxy oils as lubricating additives to eliminate corrosion from chlorine containing compounds 15 is reported in literature. Epoxides can also be used as high-temperature lubricants 4,11 and the products obtained from ring opening can be employed as low-temperature lubricants 16 .…”

Section: Introductionmentioning

confidence: 99%

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Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

2014

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Section: Figmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

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Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

2014

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“…Epoxidized soybean oil is usually used as lubricants, plasticizers, rubber-like materials and polymer stabilizers in industry (Biermann et al, 2008;Wu et al, 2000;Hwang and Erhan, 2001;Sharma et al, 2006;Campanella et al, 2010;Noor Armylisas et al, 2017). With the rapid development of the oleochemical industry and increasing demand for renewable materials, the interest in using the epoxidized vegetable oil methyl esters as the chemical intermediate is increasing continually, such as carbonate esters and polymers (Mazo and Rios, 2013;Martini et al, 2009;Ahn et al, 2011;Mustata et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Lipase-catalyzed transesterification of epoxidized soybean oil to prepare epoxy methyl esters

Liu

Duan

2018

Grasas y Aceites

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SUMMARY:Epoxidized soybean oil methyl esters could be efficiently prepared with the transesterification of epoxidized soybean oil (ESBO) with a lower dosage of methanol using lipase Novozym 435 as catalyst. The optimum parameters were as follows: the molar ratio of 5:1 (methanol to ESBO), 5% Novozym 435 as catalyst, at 45 °C for 14 h, with a stirring speed of 600rpm, under which the epoxidized soybean oil methyl esters (ESBOME) could be obtained at a 95.7% yield. During the enzymatic transesterification process, the oxirane oxygen values were kept unchangeable, which indicated that excellent functional group tolerance could be achieved under such mild reaction conditions. In addition, the recyclability of the immobilized enzyme Novozym 435 in this transesterification process was examined and the results showed that the biocatalyst could be reused ten times without losing any reaction activity or selectivity. And the final products of ESBOME were also identified by IR and NMR analysis. The kinetic data obtained followed the Ping-Pong Bi mechanism model (V max = 6.132 mol·L RESUMEN:Transesterificación catalizada por lipasa en aceite de soja epoxidado para preparar epoxi metil ésteres. Los ésteres metílicos de aceites de soja epoxidados pueden prepararse eficientemente mediante la transesterificación del aceite de soja epoxidado (ESBO) con una menor dosificación de metanol utilizando la lipasa Novozym 435 como catalizador. Los parámetros óptimos fueron los siguientes: relación molar 5:1 de metanol:ESBO, 5% de Novozym 435 como catalizador, 45 °C durante 14 h, velocidad de agitación de 600 rpm, bajo la cual los ésteres metílicos de aceites de soja epoxidados (ESBOME) pueden obtenerse con un rendimiento del 95,7%. Durante el proceso de transesterificación enzimática, los valores de oxígeno de oxirano se mantuvieron inalterables, lo que indicó que se logra una excelente estabilidad del grupo funcional en tales condiciones de reacción suaves. Además, se examinó la reciclabilidad de la enzima inmovilizada Novozym 435 en este proceso de transesterificación y los resultados mostraron que el biocatalizador podría reutilizarse durante diez veces sin perder ninguna actividad de reacción o selectividad. Los productos finales de ESBOME se identificaron por IR y análisis de RMN. Los datos cinéticos obtenidos siguieron el modelo de mecanismo Ping-Pong Bi (V max = 6,132 mol·L

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“…Among the methods of chemical modification, the epoxidation reaction is one of the most important functionalization reactions to eliminate the thermal and oxidative instability derived from the presence of unsaturated bonds in vegetable oils 7 . Besides, this process can result in an oil with better anticorrosion properties and greater affinity to the metal surface, presence of oxygen from the oxirane group 8 …”

mentioning

confidence: 99%

The Lubricity Analysis of Cutting Fluid Emulsions

et al. 2017

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The new generation of cutting fluids should have some characteristics, such as low toxicity and biodegradability. A bio-cutting fluid emulsion are an excellent option because they present those properties, as well as good mechanical performance. The present study aims to investigate the lubricity of O/W emulsions (cutting fluid emulsion), varying the concentration of anionic surfactant (1%, 2.5% and 5%) and epoxidized oil (5%, 10%, 15%, 20% e 25%). A sunflower oil was chemically modified by epoxidation reaction, then its viscosity, iodine and oxirane index, density, and acidity were characterized. The performances of the emulsions were evaluated using a tribometer HFRR (High Frequency Reciprocating Rig), under hydrodynamic lubrication conditions. The ball wear scars were analyzed using an optical microscopy. The results showed that a low concentration of surfactant promote friction and wear reduction. Based on the tribological performance, the emulsions with 5% and 10% of epoxidized oil are more suitable.

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The study of epoxidized rapeseed oil used as a potential biodegradable lubricant

Cited by 161 publications

References 7 publications

Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

Synthesis of Epoxy Jatropha Oil and its Evaluation for Lubricant Properties

Lipase-catalyzed transesterification of epoxidized soybean oil to prepare epoxy methyl esters

The Lubricity Analysis of Cutting Fluid Emulsions

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