Measuring the thermal conductivity of liquids using photo-thermal radiometry. Oliveira, L. Lugo, J.A.P. Tribological behaviour of novel chemically modified biopolymer-thickened lubricating greases investigated in a steel–steel rotating ball-on-three plates tribology cell. [22], Oil pressed from the seed of Helianthus annuus. In this sense, vegetable oils represent promising alternatives to mineral-based lubricants because of their high biodegradability, good lubricity, and low volatility. Irina NITA, Anisoara NEAGU, Sibel GEACAI, Anca DUMITRU and Anca STERPU: "Study of the behavior of some vegetable oils during the thermal treatment," Technology and Chemical Engineering Department, Ovidius University, bd. [10] Sunflower oil is a rich source of vitamin E (tables). Due to the high levels of unsaturated fats, there is higher viscosity in cold temperatures. Franco, H.A. The absolute viscosities of the different vegetable oils were determined using a Lamy Viscometer RM100, a rotating viscometer with coaxial cylinder. Oil / Fat: Coconut oil . Ventura-Canseco, J.H. Dynamic viscosity and density measurements were performed in a rotational rheometer and capillary densimeter, respectively, in a temperature range between 25 and 120 °C. Franco. Example: Avocado oil (user can search for other oils)", "USDA Specifications for Vegetable Oil Margarine Effective August 28, 1996", "Changes in dry matter, oil content and fatty acids composition of avocado during harvesting time and post-harvesting ripening period", "What is unrefined, extra virgin cold-pressed avocado oil? Igor Nascentes dos Santos Corrêa, Sabrina Spagnolo Pedro da Silva, Danielle Simas de Queiroz, Danielle Oliveira Rosas, Marta Antunes Pereira Langone. Sunflower oil, crude … Castañón-Gonzáles. Sunflower oil is commonly used in food as a frying oil, and in cosmetic formulations as an emollient. Quartz crystal microbalance investigation of the structure of adsorbed soybean oil and methyl oleate onto steel surface. Atanu Kumar Paul, Venu Babu Borugadda, Machhindra S. Bhalerao, Vaibhav V. Goud. Unrefined sunflower oil is a traditional salad dressing in Eastern European cuisines. Gregory F. Simmons, Sergei Glavatskih, Michael Müller, Åke Byheden, Braham Prakash. A study was carried out to determine the effect of higher shear rates (64.5 to 4835 s−1) on the absolute viscosities of different vegetable oils at different temperatures (26 to 90°C). M.C. M.A. Effect of load on friction and wear characteristics of Jatropha oil bio-lubricants. Miguel Angel Delgado-Canto, Samuel David Fernández-Silva, Claudia Roman. Tribological studies of potential vegetable oil-based lubricants containing environmentally friendly viscosity modifiers. The world's total production of sunflower oil in 2014 was nearly 16 million tonnes, with Ukraine and Russia as the largest producers. By continuing you agree to the use of cookies. 341 Palm olein. Rafael Garcés, Enrique Martínez-Force, Joaquín J. Salas. Synthesis of biolubricant components from waste cooking oil using a biocatalytic route. The torque of each sample at different temperatures was recorded at different shear rates. R. Sánchez, J. M. Franco, M. A. Delgado, C. Valencia, C. Gallegos. ▶ Viscosity increments up to 330–420% respecting the original oil have been obtained for these vegetable oils/EVA blends. © 2020 Cole-Parmer Instrument Company, LLC. During these last years, special attention has been paid to the protection of the environment against pollution exerted by lubricants and hydraulic fluids based on mineral oils. Keeping sunflower oil at low temperatures during manufacture and storage can help minimize rancidity and nutrient loss—as can storage in bottles that are made of either darkly-colored glass, or, plastic that has been treated with an ultraviolet light protectant. [5][6], Sunflower oil is mainly a triglyceride. These metrics are regularly updated to reflect usage leading up to the last few days. Kansas State University, Manhattan, KS [accessed 2014 October 22]. In situ epoxidation of waste soybean cooking oil for synthesis of biolubricant basestock: A process parameter optimization and comparison with RSM, ANN, and GA. HOSO viscosity increases with polymer concentration. Experimental measurements and modeling of CO2 solubility in sunflower, castor and rapeseed oils. Compressibilities and Viscosities of Reference, Vegetable, and Synthetic Gear Lubricants. [2] The expressed oil has a neutral taste profile. Because sunflower oil is primarily composed of less-stable polyunsaturated and monounsaturated fatty acids, it can be particularly susceptible to degradation by heat, air, and light, which trigger and accelerate oxidation. On the contrary, the lowest increments correspond to castor oil/EVA blends, mainly at low temperature. Jan C.J. Palm stearin Peanut oil . Franco, C. Valencia, M.A. Delgado, C. Gallegos. [7] The British Pharmacopoeia lists the following profile:[8], Four types of sunflower oils with differing concentrations of fatty acids are produced through plant breeding and industrial processing: high-linoleic, high-oleic, mid-oleic, and high-stearic combined with high-oleic. An Arrhenius-like equation fits the evolution of viscosity with temperature fairly well. Nazli Acar, José M. Franco, Erik Kuhn, David E. P. Gonçalves, Jorge H. O. Seabra. Unrefined sunflower oil is less heat-stable (and therefore well-suited to dishes that are raw, or cooked at low temperatures), but it will retain more of its original nutrient content, flavor, and color (light-amber). Tribological properties of nano cellulose fatty acid esters as ecofriendly and effective lubricant additives. [21], Sunflower oil can be used to run diesel engines when mixed with diesel in the tank. Sunflower oil is the non-volatile oil pressed from the seeds of sunflower (Helianthus annuus). The refined oil is clear and slightly amber-colored with a slightly fatty odour. Meeting the needs of the scientific and engineering communities since 1955. Chicken fat and biodiesel viscosity modification with additives for the formulation of biolubricants. Consequently, environmental friendly viscosity modifiers should be included in the lubricant formulation. M. Shahabuddin, H.H. This article is cited by Sunflower oil 341. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. Viscosity modification of different vegetable oils with EVA copolymer for lubricant applications. Zainal, N.W.M. Coutinho, J. Fernández. We use cookies to help provide and enhance our service and tailor content and ads. Both EVA and SBS copolymers may be satisfactorily used as additives to increase the viscosity of HOSO, thus improving the low viscosity values of this oil. The main objective of this work was to develop new environmentally friendly lubricant formulations with improved kinematic viscosity values and viscosity thermal susceptibility. R. Gallego, T. Cidade, R. Sánchez, C. Valencia, J.M. , Jeong-Hun Kim, Jun-Kyu Lee, Young-Soo Ahn, Jeong-Gu Yeo, Jin-Seok Lee, Gi-Hwan Kang, Churl-Hee Cho. Zulkifli, M. Gulzar, H.H. Low-temperature flow behaviour of vegetable oil-based lubricants. EVA addition always yields an important increase in vegetable oil viscosity. Environmental Progress & Sustainable Energy. The viscosity at 35°C was about 10-to 15-fold of the viscosity at 180°C. Clicking on the donut icon will load a page at with additional details about the score and the social media presence for the given article. Journal of Molecular Catalysis B: Enzymatic. Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. Yashvir Singh, Abhishek Sharma, Nishant Singh, Amneesh Singla, Pankaj Mohan Rastogi. Krall, JM. All Rights Reserved. In this paper, ethylene–vinyl acetate copolymer (EVA) has been successfully tested as viscosity modifier for several common vegetable oils, yielding potentially environmental friendly lubricants for some applications. Copyright © 2020 Elsevier B.V. or its licensors or contributors. Teresa Regueira, Luis Lugo, Olivia Fandiño, Enriqueta R. López, Josefa Fernández. [1], Sunflower oil is primarily composed of linoleic acid, a polyunsaturated fat, and oleic acid, a monounsaturated fat. Keep your Vaccines Safe along the Cold Chain   Shop Now >. This will have significant effects on the energy required to pump the oil and on the rate of heat transfer at elevated temperatures. ▶ This work deals with the modification of vegetable oils viscosity for bio-lubricant applications.

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