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Preparation of Dielectric Greases from Some Inorganic Thickeners
American Journal of Applied Chemistry
Volume 1, Issue 1, April 2013, Pages: 9-16
Received: May 2, 2013; Published: May 30, 2013
Views 3373      Downloads 236
Authors
A.M. Hassan, Egyption Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
A. M. Hassan, Egyption Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
M. A. Youssif, Egyption Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
M.A. Youssif, Egyption Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
A.M. Mazrouaa, Egyption Petroleum Research Institute, Nasr City 11728, Cairo, Egypt
A. M. Mazrouaa, Egyption Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
R. M. Abou Shahba, Al-Azhar University, Faculty of Science, Nasr City, Cairo, Egypt
R.M.Abou Shahba, Al-Azhar University, Faculty of Science, Nasr City, Cairo, Egypt
M.A.E. Youssif, Egyption Petroleum Research Institute, Nasr City 11728, Cairo, Egypt
M. A. E. Youssif, Egyption Petroleum Research Institute, Nasr City 11727, Cairo, Egypt
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Abstract
According to this study wax gel grease (S0) is formulated from base lube oil grade 260/290, transformer oil, microcrystalline wax, additives (0.1-2%) of Polyoxyethylene sorbiton-nano-palmitate antioxidant and 2, 2` methylene bis (4-methyl-6-tertiary butyl phenol) anticorrosion, was found that it had not well enough physico-chemical and dielectric properties, so other thicker may be used as (nano talc, nano kaolin, sodium silicate, ultramarine and silica from rice husk) and added to wax gel in certain proportions in an attempt to improve its physico-chemical properties (viscosity, penetration, dropping point and water resistance) and dielectric properties (dielectric constant, dielectric loss and volume resistivity) at frequency ranging 1-1000KHz at 35°C. Grease includes nano talc and silica from rice husk which has the best dielectric properties
To cite this article
A.M. Hassan, A. M. Hassan, M. A. Youssif, M.A. Youssif, A.M. Mazrouaa, A. M. Mazrouaa, R. M. Abou Shahba, R.M.Abou Shahba, M.A.E. Youssif, M. A. E. Youssif, Preparation of Dielectric Greases from Some Inorganic Thickeners, American Journal of Applied Chemistry. Vol. 1, No. 1, 2013, pp. 9-16. doi: 10.11648/j.ajac.20130101.12
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