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N. A. Ostrovsky, S. T. Bashkatova, I. A. Gritskova, E. J. Grzywa

The influence of ethylene/α-olefin copolymers used as additives

on the viscosity and low-temperature properties of mineral oils

RAPID COMMUNICATION

Polimery 2000, No 5, 366


DOI: dx.doi.org/10.14314/polimery.2000.366


Summary

Ethylene/α-olefin copolymers (M ≤ 20 000) (PEAOP) were studied as depressants and viscosity improvers, at concentrations of 0.5 and 1% by wt., in (a) industrial oil I–20A and (b) motor oil M-11. The pour points of the oils fell (a) by 15°C and 25°C, and (b) by 6°C and 10°C, respectively. Slovenian Viskocryl-100 was found to be equivalent and superior to the copolymer additive as depressant for the I–20A and the M-11, respectively (Table 2). Russian PMA-D was inferior as depressant. Kinematic viscosity and viscosity index of the oils were studied in relation to additive content (Table 3).
Keywords: ethylene/α-olefin copolymer as oil additive, pour point, viscosity, viscosity index
N. A. Ostrovsky, S. T. Bashkatova, I. A. Gritskova, E. J. Grzywa (144.5 KB)
The influence of ethylene/α-olefin copolymers used as additives on the viscosity and low-temperature properties of mineral oils - RAPID COMMUNICATION