VISCOSITY IMPROVERS FOR SOLUTIONS COPOLYMER ETHYLENE PROPYLENE IN OIL SAE 10W-40
Journal Title: Journal of Science And Arts - Year 2013, Vol 22, Issue 1
Abstract
In this article we presented viscosity improvers for ethylene propylene copolymer solution in SAE 10W-40 oil using tree method. Viscosity indices are calculated from the measured viscosity at 40 and 100 ºC using ASTM D 2270 and method graphically was using ASTM D 341. Viscosity improvers for solution oil were calculated using computer program created in Visual Basic. The viscosity-temperature coefficients for SAE 10W-40 oil were calculated from the measured viscosity at 40 and 100 ºC.
Authors and Affiliations
IOANA STANCIU
Keywords
Related Articles
- EP ID EP135718
- DOI -
- Views 223
- Downloads 0
WATER TREES INFLUENCE ON THE POWER CABLES INSULATION BREAKDOWN DURING OPERATION<br />
In this paper a study regarding the influence of water trees on the values and repartition of the electric field in power cables insulations is presented. Experiments were carried out on flat samples under the circular c...
THE RESEARCH OF THE PHYSICO-CHEMICAL PARAMETERS OF WATER TREATED WITH SONIC TECHNOLOGY
The sonic technology consists in using a installation with an ultrasound generator that induces simultaneously in water during operation an air-jet and ultrasound that influence the physical and chemical characteristics...
SOME FUNCTIONAL RELATIONS INVOLVING I-FUNCTION USING FRACTIONAL INTEGRAL OPERATORS
There are many papers in mathematical literature in which the functional relation associated with the hypergeometric functions and the logarithmic derivative of gamma function (digamma function) is derived using the appl...
OPTIMAL CONCENTRATIONS IN THE ENZYME REACTIONS
This paper contains a particular point of view about the solution of an optimal control problem. The subject is the enzymatic reaction modeled as a dynamical system, when a disturbing external factor is present.
THE STRUCTURAL INFLUENCE OF THE FORCES ON THE STABILITY OF DYNAMICAL SYSTEMS
In this paper consider the autonomous dynamical system linear or linearized with 2 degree of freedom. In the system of equation of 4th degree, appear the structure generalized forces: K(q) - the conservative forces...