February 1993
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5 Reads
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2 Citations
Chemistry and Technology of Fuels and Oils
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February 1993
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5 Reads
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2 Citations
Chemistry and Technology of Fuels and Oils
January 1990
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12 Reads
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1 Citation
Chemistry and Technology of Fuels and Oils
It was shown in the present work that the structurizing of lubricant compositions that are based on mineral oil can be accomplished with the aid of 'fatty acid pitch' - waste products from refining vegetable oils and industrial fats. The fatty acid pitch contains saturated and unsaturated acids, including myristic, palmitic, and oleic acids as well as their esters, and products of polymerization and condensation. The molecules of these compounds in the normal trans isomer state have a filamentary (nematic) shape, which results in structurizing of the fatty acid pitch. Fatty acid pitch of raw cottonseed oil and a mixture of fatty acid pitches of vegetable oils and industrial fats were investigated as structurizing additives for low-viscosity mineral oil.
... Liquid crystalline materials are known to construct an ordered molecular layer close to any solid boundaries, which has been known to improve tribological performance. The importance of implementing liquid crystals (LCs) as additives to common lubricants to protect the surface against wear and reduce the coefficient of friction (COF) have been studied before, e.g., Biresaw (1990), Ivanov et al. (1993), Mori and Iwata (1996), Bermúdez et al. (1997), Ma et al. (1999), Bermudez et al. (2005), Sulek and Wasilewski (2006), Vekteris and Mokshin (2008), Waters et al. (2008), Carrión et al. (2009), and Amann and Kailer (2010). ...
February 1993
Chemistry and Technology of Fuels and Oils