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Paper Information

Journal:   NASHRIEH SHIMI VA MOHANDESI SHIMI IRAN (PERSIAN)   FALL 2007 , Volume 26 , Number 3; Page(s) 149 To 158.
 
Paper: 

EVALUATION OF EFFECT OF ETHYLENE-PROPYLENE DIENE MONOMER POLYMERIC ADDITIVES, DMAEMA & HEMA ON IMPROVEMENT OF ENGINE OIL

 
 
Author(s):  PAHLEVAN ZADEH H.*, ZARE MAHDI, YAZDANI RAD M.
 
* DEPARTMENT OF CHEMICAL ENGINEERING, FACULTY OF ENGINEERING, ISLAMIC AZAD UNIVERSITY, SOUTH TEHRAN, BRANCH, TEHRAN , I.R. IRAN
 
Abstract: 

Nowadays, application of polymers is of most common and economical methods to improve viscosity index of engine oil. Polymeric additives ethylene-propylene diene monomer, which belongs to olefin copolymers family, is applied to improve viscosity of engine oil in this paper, effects of different values of such a polymer on engine oil is evaluated in a comparative way Using full experimental design method, various amount of additives was added to base oil HVI-SN 150 during 16 experiments carried out in mixing reactors. Formulated oils were tested by VI, CCS and SSI and results were analyzed. Experiments were focused on achievement of samples with proper VI and high shear stability. The best function at low operation temperatures. Hence, best index of samples were compared to engine oil produced by domestic and foreign manufactures. Results show that increment in amount of ethylene-propylene diene monomer causes VI to increase. Also result revealed that dimethyl amino ethyl metacrylate improved VI more significantly rather than hydroxyethyl metacrylate. 

 
Keyword(s): POLYMER, VISCOSITY INDEX, LUBE ADDITIVES, OLEFIN COPOLYMERS, ETHYLENE-PROPYLENE DIENE MONOMER, DIMETHYL AMINOETHYL METHACRYLATE, HYDROXYETHYL METHACRYLATE, SHEAR STABILITY INDEX (SSI)
 
References: 
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