Experimental Dynamic Viscosities of Dipentaerythritol Ester Lubricants at High Pressure

摘要: In the present work viscosity data for two dipentaerythritol esters (DiPEs) from (303.15 to 373.15) K up 60 MPa are reported. The experimental measurements were performed with a rotational automated viscometer Anton Paar Stabinger SVM3000 at 0.1 and rolling-ball Ruska 1602-830 high pressures. Modified Vogel−Fulcher−Tammann (VFT) equations used represent temperature pressure dependence of viscosity. have been superpositioned as function product temperature, T, volume, V, raised an exponent γ, namely, scaling parameter, TVγ. A comparison between values this characteristic parameter DiPEs those other complex has performed.