Investigation of PIB-succinimides in engine oils

• Autorzy: Sagi R. , Bartha L. , Beck A. , Baladincz J.
• Języki publikacji: EN

Abstrakty

EN

Along with the ever stricter economical, technical and mainly environmental regulations new types of low phosphorous, sulphurous and metal containing multifunctional engine oil additives are required. In the greatest volume dispersant additives, mainly polyisobuthylene-succinimides are used in the formulation of engine oils. By structure modification advantageous complementary effects could be achieved along the high detergent-dispersant efficiency. In view of this different modified PIB-polysuccinimides with complementary AF/AW, viscosity-index improver and enhanced detergent-dispersant properties were synthesized and investigated in base oil and engine oils. The potential detergent-dispersant efficiency, spot dispersancy, thermal- and oxidation stability, deposit preventing effect and AF/AW properties were studied in fully formulated engine oils. Based on the results it was found that by using suitable additive concentrations the conventional dispersant can be advantageously combined or replaced with these new additives to enhance the properties of the experimental engine oils.

Słowa kluczowe

EN

modified PIB-polysuccinimide; detergent-dispersant properties; AF/AW effects; thermal pretreatment

PL

materiały plastyczne; reologia

• Wydawca: Oficyna Wydawnicza Uniwersytetu Zielonogórskiego
• Czasopismo: International Journal of Applied Mechanics and Engineering
• Rocznik: 2006
• Tom: Vol. 11, no 3
• Strony: 507--513
• Opis fizyczny: Bibliogr. 8 poz., tab., wykr.

Twórcy

autor

Sagi R.

autor

Bartha L.

autor

Beck A.

autor

Baladincz J.

• University of Pannon, Department of Hydrocarbon and Coal Processing 8201 Veszprém, P.O. Box 158 HUNGARY,

Bibliografia

• Bartha L., Kis G., Hancsók J. and Baladincz J. (2004): Engine oil compositions based on PIB-succinimide combinations. - Lubrication Science, vol.16, No.4, pp.347-359.
• Biggin R.J.C. (2004): Additives - present state and future developments. - 14th International Colloquium Tribology, TAE, Esslingen, Proceedings, vol.1, pp.31-36.
• Bubálik M., Hancsók J., Bartha L., Sági R. and Kis G. (2004): Modified test method for characterization of AF/AW properties. - 8th International Conference on Tribology, Veszprém, Proceedings, pp.198-203.
• Gligorijevic R. and Jevtic J. (2004): The influence of engine oil on diesel exhaust emissions. - Journal of Synthetic Lubrication, vol.21, No.1, pp.33-42.
• Hancsók J., Bartha L., Molnár I., Bubálik M., Auer J., Baladincz J. and Kocsis Z. (2005): Interactions between modern engine oils and reformulated fuels. - Petroleum and Coal, vol.47, No.2, pp.55-64.
• Kis G., Bartha L., Baladincz J. and Varga G. (2003): Screening methods for selection of additive packages for engine oils. - Petroleum and Coal, vol.43, No.3-4, pp.106-111.
• Kocsis Z., Baladincz J., Bartha L., Hancsók J. and Sági R. (2004): Mo-containing dispersant additives for the formulation of low SAPS engine oils. - 14th International Colloquium Tribology, TAE, Esslingen, Proceedings, vol.3, pp.1555-1560.
• Otterholm B. (2004): Engine oils for euro IV engines and beyond - need for low sulphur, phosphorus and sulphated ash? - 14th International Colloquium Tribology, TAE, Esslingen, January 13-15, 2004, Proceedings, vol.1, pp.37-43.