Lubricants based on renewable resources – an environmentally compatible alternative to mineral oil products

Willing, Andreas

doi:10.1016/s0045-6535(00)00328-3

Cited by 242 publications

(125 citation statements)

References 8 publications

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“…14 Value enhancement of triglycerides leads to the preparation of industrial products and mainly to surfactants, lubricants and polymers. [15][16][17][18] For instance, the production of surfactants being efficient and presenting interesting properties such as biocompatibility and biodegradability 19,20 is a successful example of industrial conversion of vegetable oils into valuable chemicals. [21][22][23] The area of industrial conversion of oils into chemicals being wide, the reader's attention will now be focused only in the field of polymers.…”

Section: The Interest In Vegetable Oilsmentioning

confidence: 99%

Polymer precursors from catalytic reactions of natural oils

et al. 2012

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Dimethyl 1,19-nonadecanedioate is produced from the methoxycarbonylation of commercial olive, rapeseed or sunflower oils in the presence of a catalyst derived from [Pd 2 (dba) 3 ], bis(ditertiarybutylphosphinomethyl)benzene (BDTBPMB) and methanesulphonic acid (MSA). The diester is then hydrogenated to 1,19-nonadecanediol using Ru/1,1,1-tris-(diphenylphosphinemethyl)ethane (triphos). 1,19-Nonadecadienoic acid is hydrogenated to short chain oligoesters, which can themselves be hydrogenated to 1,19-nonadecanol by hydrogenation in the presence of water.

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Section: The Interest In Vegetable Oilsmentioning

confidence: 99%

Polymer precursors from catalytic reactions of natural oils

et al. 2012

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“…Vegetable oils are renewable resources, environmentally friendly non-toxic fluids, biodegradable and have no health hazards. The triacrylglycerol structure of vegetable oil makes it an excellent candidate for potential use as a base stock for lubricants and functional fluids [28]. It was observed that wear resistance of lubricated surfaces can be significantly improved by the formation of a stable tribochemical film [29].…”

Section: Introductionmentioning

confidence: 99%

Effect of Magnetic Field on the Friction and Wear of Polyamide Sliding against Steel

Abdel-Jaber¹,

Mohamed²,

Ali³

2014

MSA

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The present work discusses the friction and wear of polyamide sliding against steel in the presence of magnetic field. Tests were carried out at dry and oil lubricated steel surfaces. Paraffin and vegetable oils such as almond, castor, corn, glycerine, jasmine, olive and sun flower oils were used as lubricants. The friction coefficient and wear were investigated using pin on disc wear tester. Based on the experimental results, it was found that application of magnetic field on the contact area affected both friction coefficient and wear of polyamide sliding against steel at dry and oil lubricated conditions. Magnetic field decreased friction coefficient. Lubricating the sliding surface by paraffin oil as well as almond, castor, corn, glycerine, jasmine, olive and sun flower oils significantly decreased friction coefficient. Generally, friction coefficient increased with increasing applied load. Dry sliding of polyamide against steel surface showed increased wear with increasing load. The lowest wear values at no magnetic field were displayed by jasmine oil followed by sun flower, almond, olive, castor, corn, glycerine and paraffin oils. Under the application of magnetic field, the lowest wear values were displayed by sun flower oil followed by jasmine, castor, glycerine, olive, paraffin, almond and corn oils. It can be concluded that friction and wear decrease observed at dry sliding can be explained on the basis that presence of magnetic field around the contact area decreased the adherence and transfer of polyamide into the steel surface. For oil lubricated sliding, the polar molecules of the tested lubricating oils were much affected by the magnetic field, where they oriented themselves to the polar end directed towards the sliding surface making a close packed multi-molecular layered surface film that could protect the sliding surfaces from excessive wear.

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“…Today, around 2 % of the base stocks are of plant oil origin [10]. The triacylglycerol structure of plant oil derivatives makes it an excellent bio-lubricant [11][12][13]. They offer a number of advantages, including high biodegradability (>95 %), reduced environmental pollution [14][15][16][17][18] compatibility with additives, low production costs [19], large possibilities of production, low toxicity, high flash point, low volatility, high viscosity indices and, above all, better tribological performance.…”

Section: Researchmentioning

confidence: 99%