Tribological evaluation of date seed oil and castor oil blends with halloysite nanotube additives as environment friendly bio-lubricants

Ahmed, Mohammed Shabbir; Nair, K. Prabhakaran; Tirth, Vineet; Elkhaleefa, Abubakr; Rehan, Mohammad

doi:10.1007/s13399-021-02020-9

Cited by 19 publications

(7 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Green lubricants are primarily classified into biobased and synthetic lubricants. Presently, research is predominantly centered on biodegradable lubricants, often derived from sources such as vegetable oils and polyol lubricants. , Vegetable oils have the potential to serve as alternative base oils to mineral oils. However, challenges arise when utilizing vegetable oils as lubricants, including issues such as inadequate thermal and oxidative stability, a limited viscosity range, and reduced fluidity at low temperatures.…”

Section: Introductionmentioning

confidence: 99%

Tribological Properties and Biotoxicity of Gluconate-Based Ionic Liquids as Glycerol Lubricant Additives

Li,

Wang,

Liu

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

With increasing environmental awareness and a growing emphasis on green practices, water-based lubricants have gained significant traction in the lubrication industry. In this study, we incorporated a synthesized environmentally friendly and biodegradable gluconate ionic liquid (ILs), [OMIm][gluconate], into a glycerol. The tribological properties of [OMIm][gluconate] as a water-based lubricant additive were comprehensively investigated. Compared with glycerol, the results of the study showed that the friction coefficient and wear volume of the dispersions were reduced by 38.9% and 97.2%, respectively. In addition, [OMIm][gluconate] has excellent tribological properties, significant antimicrobial properties, and low toxicity to animals. The excellent tribological properties of [OMIm][gluconate] are attributed to the tribologically active element N in the molecular structure of ILs to the surface of the friction pair during the friction process. At the same time, a physicochemical adsorption process occurs at the interface of the additive molecules with the friction pair and a complex tribochemical took place. This process culminates in the formation of a highly durable tribofilm, contributing to the material's exceptional toughness. Furthermore, the outstanding antimicrobial properties can be attributed to certain lipid-soluble carbon chain structures that disrupt the integrity of bacteria, leading to the effective eradication of Escherichia coli.

show abstract

Section: Introductionmentioning

confidence: 99%

Tribological Properties and Biotoxicity of Gluconate-Based Ionic Liquids as Glycerol Lubricant Additives

Li,

Wang,

Liu

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…12,13 These characteristics make it a promising raw material for polymer additives, especially in PLA. Studies show the applicability of CO as a plasticizer, 14,15 lubricant, 16 and biofuel. 17 The wide application of CO is attributed to its chemical reactivity, being susceptible to various chemical modifications, 11,13 such as hydrogenation, transesterification, and epoxidation.…”

Section: Introductionmentioning

confidence: 99%

“…These characteristics make it a promising raw material for polymer additives, especially in PLA. Studies show the applicability of CO as a plasticizer, 14,15 lubricant, 16 and biofuel 17 …”

Section: Introductionmentioning

confidence: 99%

Degradation kinetics of PLA compounds with castor oil

Dantas,

Araújo,

Nicácio

et al. 2024

J of Applied Polymer Sci

View full text Add to dashboard Cite

Poly (lactic acid) (PLA) compounds with castor oil (CO) and epoxidized castor oil (ECO) were produced via formic acid, with levels of 5% CO, 3 and 5% ECO. The contribution of this study lies in the detailed analysis of thermal degradation and degradation kinetics of PLA/CO and PLA/ECO. Chemical changes were evidenced by Fourier transform infrared (FTIR), thermal stability, and degradation kinetics were investigated by thermogravimetric analysis (TGA), using Friedman (FR), Ozawa–Flynn–Wall (OFW), Kissinger–Akahira–Sunose (KAS) and Vyazovkin (VZ) models. Results showed changes in FTIR spectra for PLA/CO and PLA/ECO. For PLA/5%CO and PLA/3%ECO, lower energy bonds formation were observed, resulting in modifications in the involved molecules and presence of CH type bonds in PLA/5%ECO. TGA analysis showed that PLA presented greater thermal stability compared with PLA/CO and PLA/ECO, with T5% = 306°C. The compounds 5% CO, 3 and 5% ECO exhibited lower degradation temperatures (298, 300, and 296°C), compared with PLA, as well as slower decomposition rates. Kinetic modeling using KAS and OFW models proved to be incapable of describing the degradation kinetics of PLA and its compounds. However, FR and VZ were considered adequate, with discrepancies varying between 7% to −4% and 9% to −3%, which showed higher (215, 185, 210, 189 KJ/mol) at α = 0.3 for PLA.

show abstract

“…Coefficient of friction of dry as well as lubricated samples varied from 0.2 to 0.55 with MoS2 additive and lowest value existed at 0.2. Shabbir et al [14] investigated the tribological properties of date seed oil and castor oil added with halloysite nanotubes. The lubricant so developed reduced friction and wear substantially.…”

Section: Introductionmentioning

confidence: 99%

Investigation of Lubrication Characteristics of Virgin and Additive Blended Jatropha Based Grease

Hanief,

Khursheed,

Charoo

et al. 2023

Tribol. Ind.

View full text Add to dashboard Cite

Increasing interest in utilizing bio-lubricants has been sparked by pollution caused by the mineral oil-based lubricants and their depletion. This study aimed to assess the effectiveness of Jatropha oil based grease as a basis and sodium thickener as an additive. The grease's lubricating abilities were tested using the ASTM 2266 four ball test and molybdenum disulphide as an additive. According to the findings, adding molybdenum disulphide particles decreased wear and the coefficient of friction, with the latter falling by 69% when compared to virgin Jatropha grease. Given that Jatropha grease passed the four ball test, a simulation of real-world conditions, this indicates that it is a reliable lubricant. Wear examinations were performed on steel balls using an optical microscope and scanning electron microscopy, and the results were consistent. It was found that addition of 0.25% MoS2 to virgin Jatropha grease reduced coefficient of friction to 0.12 (69%) from 0.39. Similarly wear scar diameter reduced from 800.583 µ to 788.44 µ in presence of 0.25% MoS2 blended grease. The study concludes that the grease prepared could an alternative to grease made from mineral oils. The focus on adopting Jatropha grease as a more sustainable and bio-degradable option can preserve the environment.

show abstract

Tribological evaluation of date seed oil and castor oil blends with halloysite nanotube additives as environment friendly bio-lubricants

Cited by 19 publications

References 58 publications

Tribological Properties and Biotoxicity of Gluconate-Based Ionic Liquids as Glycerol Lubricant Additives

Tribological Properties and Biotoxicity of Gluconate-Based Ionic Liquids as Glycerol Lubricant Additives

Degradation kinetics of PLA compounds with castor oil

Investigation of Lubrication Characteristics of Virgin and Additive Blended Jatropha Based Grease

Contact Info

Product

Resources

About