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Activity of Copper and Blast Furnace Slag and Its Influence on the Properties of Cement. [PDF]
Materials (Basel)Grzeszczyk S +5 more
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Evaluation of Somatropin Release from Chitosan and Methylcellulose Hydrogels: Influence of Hydrogel Composition and Phosvitin on the Release Profile. [PDF]
Polymers (Basel)Siemiradzka W, Mizgała W.
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Intrinsic relationship between viscosity, viscosity index, and molecular structure of isoalkanes
Journal of Molecular Modeling, 2023Viscosity and viscosity index are the crucial properties of lubricant base stocks. Molecular dynamics simulation and quantum calculation were used to simulate the five isomers of C26H54 to study the intrinsic relationship between viscosity, viscosity index, and the molecular structure of isoalkanes.
Leilei, He +3 more
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Multifunctional viscosity index improvers
Journal of Chemical Technology & Biotechnology, 1994AbstractStyrene alkylmethacrylate succinimide phosphoric acid additives are synthesised and evaluated for use in multigrade crankcase lubricating oils as multifunctional viscosity index improvers having both antioxidant and dispersant properties. The synthesis is based on reacting styrene alkylmethacrylate (prepared by the reaction of styrene and 2 ...
Mohamed M. Mohamed +2 more
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A critical approach to viscosity index
Fuel, 2009The viscosity index (VI) is a useful tool for lubricant users and refiners, since it is a measure of the effect of temperature changes on the viscosity of the oil. However, it was found that the viscosity index does not correlate with the flow activation energy Ea, which is the theoretically defined dependence of the viscosity on temperature.
Sylvain Verdier +4 more
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SAE Technical Paper Series, 1949
<div class="htmlview paragraph"><b>L</b>ABORATORY and road tests are reported that show volatility, viscosity, and viscosity index to be the three most important physical properties affecting the consumption tendencies of motor oils.</div> <div class="htmlview paragraph">These tests indicate further that oils having low ...
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<div class="htmlview paragraph"><b>L</b>ABORATORY and road tests are reported that show volatility, viscosity, and viscosity index to be the three most important physical properties affecting the consumption tendencies of motor oils.</div> <div class="htmlview paragraph">These tests indicate further that oils having low ...
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NEMD Simulations of Viscosity and Viscosity Index for Lubricant-Size Model Molecules
International Journal of Thermophysics, 2002Synthetic lubricant research can be facilitated with nonequilibrium molecular dynamics simulations (NEMD) of viscosity and viscosity index (VI). While previously reported simulations using united atom (UA) models for intermolecular interactions have generally under-predicted the viscosity of lubricant-size alkanes, VI values, trends with respect to ...
Y. Yang, T. A. Pakkanen, R. L. Rowley
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Viscosity Index Tables for Celsius Temperatures
1975These tables were prepared to provide a convenient means of obtaining the viscosity index of petroleum products and lubricants without the necessity of calculation. They have been prepared under the sponsorship of Research and Development Division VII on Flow Properties of ASTM Committee D-2.
W. A. Wright +2 more
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ASTM Viscosity Index Tables Calculated from Kinematic Viscosity
1965Description These tables were prepared to provide a convenient means of obtaining the Viscosity Index of petroleum products and lubricants without the necessity of calculation. They have been prepared under the guidance of Research Division VII on Flow Properties, of ASTM Committee D-2 on Petroleum Products and Lubricants.
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Viscosity Index Improvers and Thickeners
2009Early in the history of the lubricants industry, the viscosity index (VI) was an important measure of quality, providing an indication of the potential of an oil for application over a wide temperature range. Pennsylvania grade oils (∼ 100 VI) were the standard against which all others were measured.
R.L. Stambaugh, B.G. Kinker
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