تصنيع شحم تزليق ليتيومي و دراسة خواصه الفيزيا-كيميائية و سلوكه الريولوجي
Other Title(s)
Manufacturing lithium grease and study of its physical-chemical properties and rheological behavior
Joint Authors
Source
مجلة جامعة دمشق للعلوم الأساسية
Issue
Vol. 30, Issue 1 (30 Jun. 2014), pp.101-117, 17 p.
Publisher
Publication Date
2014-06-30
Country of Publication
Syria
No. of Pages
17
Main Subjects
Abstract EN
We manufactured lithium lubricant grease from Syrian base Oil, we used sunflower oil (repeated frying Oil) and soap it with base oil in two way (Prior and Immediately) to form grease with different rates (20, 25, and 30%).
We studied some of the physical – chemical Properties to varieties of grease then we Compared it with Syrian standard specification 781/2008.
We used in this research standard method to identify the formula of the grease, number of penetration, Dropping point, total free acid, water resistance and evaporation class at 90 ˚C.
The results in this research, suggest that the best type of grease is (30% Soap).
In This study the rheological Properties of lithium Lubricants were Studied using a Capillary rheometer, and the necessary corrections were performed.
The results showed that the material is a pseudo Plastic in behavior and the real Viscosity (ηc) decreases with increasing real Shear rate (γc).
Also we determined the flow activation energy (Eτ) at constant Shear stress by studying the relationship between real viscosity (ηc) and (1/T).
It was found that the flow activation energy increases with increasing shear stress, also it was found that the flow activation energy of Immediately lithium Lubricants 30% is higher than that of Prior lithium Lubricants 30% which confirms Immediately lithium Lubricants 30% is more sensitive to temperature.
So it is the best in terms of rheological characteristics.
American Psychological Association (APA)
الحموي، منال وباسلة إبراهيم. 2014. تصنيع شحم تزليق ليتيومي و دراسة خواصه الفيزيا-كيميائية و سلوكه الريولوجي. مجلة جامعة دمشق للعلوم الأساسية،مج. 30، ع. 1، ص ص. 101-117.
https://search.emarefa.net/detail/BIM-740626
Modern Language Association (MLA)
الحموي، منال وباسلة إبراهيم. تصنيع شحم تزليق ليتيومي و دراسة خواصه الفيزيا-كيميائية و سلوكه الريولوجي. مجلة جامعة دمشق للعلوم الأساسية مج. 30، ع. 1 (2014)، ص ص. 101-117.
https://search.emarefa.net/detail/BIM-740626
American Medical Association (AMA)
الحموي، منال وباسلة إبراهيم. تصنيع شحم تزليق ليتيومي و دراسة خواصه الفيزيا-كيميائية و سلوكه الريولوجي. مجلة جامعة دمشق للعلوم الأساسية. 2014. مج. 30، ع. 1، ص ص. 101-117.
https://search.emarefa.net/detail/BIM-740626
Data Type
Journal Articles
Language
Arabic
Notes
يتضمن مراجع ببليوجرافية : ص. 116-117
Record ID
BIM-740626