Production and evaluation of physicochemical, rheological, and tribological properties of Cucurbita pepo L. seed oil

Choudhury, Nabajit Dev; Saha, Niharendu; Bhaumik, Shubrajit; Kataki, Rupam

doi:10.1007/s13399-020-01236-5

Cited by 8 publications

(2 citation statements)

References 53 publications

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“…The tribological performance of vegetable oils depends on their molecular structure, as discussed in Table 2. Having shorter chains than hydrocarbons do would tend to improve lubricity and wear protection, but the presence of double bonds in the structure of vegetable oils has the opposite effect [75,89,95]. Therefore, the higher the degree of unsaturation of these oils, the lower the improvement in friction and wear.…”

Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 99%

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Sanjurjo,

Rodríguez,

Viesca

et al. 2023

Lubricants

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The increase in the price of crude oil, the environmental impact, or the depletion of fossil resources has increased the need for bio-based alternatives. This has led to the search for renewable, biodegradable, and environmentally friendly raw materials to obtain lubricants that meet these characteristics. This review deals with the state of the art of biolubricants along with their most common raw materials and molecular structures, processes of chemical modification of bio-oils, as well as the relationship between their structural features and physicochemical/tribological properties. This review concludes that the production of fatty acid alkyl esters from vegetable oils is the most promising chemical route to produce a wide range of biolubricants through double transesterification reactions. It also highlights the need to explore this route for the production of microalgae-derived biolubricants due to its environmental benefits during cultivation and production processes.

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Section: Tribological Characterization and Performance Of Vegetable-d...mentioning

confidence: 99%

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Sanjurjo,

Rodríguez,

Viesca

et al. 2023

Lubricants

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“…Currently, different vegetable oil-based biolubricants including palm oil [6], canola oil [7], Cucurbita pepo L. [8], soybean oil [9], sunflower oil [10], coconut oil [11], olive oil [12], Pongamia pinnata oil [13], rapeseed oil [14], jatropha oil [15], rice bran oil [16], rubber seed oil [17], castor oil [18], sesame oil [19], Shorea Robusta (sal) oil [20], Moringa oleifera oil [21], etc. have been investigated.…”

Section: Introductionmentioning

confidence: 99%

A Preliminary Investigation of Physicochemical, Rheological and Tribological Properties of Bio-lubricant from Thevetia Peruviana Oil

Choudhury¹,

Choudhury²

2022

Tribol. Ind.

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The present work is a comparative evaluation of physicochemical, rheological, thermal, and tribological properties of Thevetia Peruviana oil (TPO) as bio-lubricant. The tribological properties were investigated by a four-ball tribo-tester according to ASTM 4172-94 and ASTM D2783 standard. The corresponding results were compared with sunflower oil, jatropha oil, SAE 20W-40 and ISO VG 46. The acid value, pour point and flash point of TPO were found to be 1.383± 0.015 mg KOH, -4 ±0.231℃ and 344±0.04℃ respectively. The viscosity index of TPO is 235.59 with viscosities 31.76 mm 2 /s at 40℃ and 7.89 mm 2 /s at 100℃. The oxidation onset temperature of TPO having a value of 282.20℃ is comparable to SAE 20W-40 but higher than that of ISO VG 46. The results obtained from tribological test show that TPO has low coefficient of friction 0.0496±0.001 with wear scar diameter 0.462±0.001 mm. Despite the low pour point temperature, TPO are comparable to commercial lubricants, which prove its suitability as bio-lubricant base-stock based on physicochemical, thermal, tribological properties, and high viscosity index.

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Synthesis and tribological properties of bio-based lubricants from soybean oil

Filho

Nascimento

Cavalcante

et al. 2023

Biomass Conv. Bioref.

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Production and evaluation of physicochemical, rheological, and tribological properties of Cucurbita pepo L. seed oil

Cited by 8 publications

References 53 publications

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

Influence of Molecular Structure on the Physicochemical and Tribological Properties of Biolubricants: A Review

A Preliminary Investigation of Physicochemical, Rheological and Tribological Properties of Bio-lubricant from Thevetia Peruviana Oil

Synthesis and tribological properties of bio-based lubricants from soybean oil

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