Experimental data points were fitted against well-known equations with the aim to gain simple and reliable descriptions of the dependence on temperature of the PFPEs viscosity. WLF (Williams-Landel-Ferry), Vogel-Cameron, Arrhenius, and the Ubbelohde-Walther (ASTM D341) equations were taken into ...
viscositytemperature dependenceThe present work dealt with the influence of polymer additives upon the reological properties ofasphalt. Six sample mixtures of 400 g asphalt with 16 g polymers (Kraton D1116, SBS rubberEuropren Sol T 6205; rubber crumb 0820A; ethylene-vinylacetate - EVA Elvax 350...
whereFis the shear force created tangentially on a plane of areaAand thevelocity gradientdw/dsis perpendicular to the plane at the point of application.Fig. 2.7presents the viscosity dependence of temperature forpurewater and forseawater.
The influence of this effect, together with the effects of the temperature dependence of the solvent viscosity and solvent thermal conductivity, on the conversion of retention data into thermal diffusion data were studied. The systematic error made when the ratio of the thermal and ordinary diffusion...
Earlier, in the framework of the same model we described the dependence of viscosity on temperature. The present treatment gives a simple interpretation of T g, the glass transition temperature, which takes places when the disorder in the amorphous system decreases to an extent that the dispersion...
For the case considered in this paper,the viscosity coefficientµdepends on both the speci fic volume v and the absolute temperature θ.For such a case,the identity corresponding to(1.15)becomes Since the last term in(1.18)is a highly nonlinear term,the temperature dependence of the viscosity...
For planetary rings the dependence of the coefficient of restitution e on the impact velocity v imp is crucialfor their stability. Hence, we present models of the dynamics of the particle collisions, which account for the velocity-dependence e ( v imp ) by a visco-elastic model for particle...
Temperature and Viscosity Dependence in the Stereoselective Formation of the Inverted Housane for...Examines the effects of temperature and viscosity on the photolytic denitrogenation of deuterium-stereolabeled diazabicyclo[2.2.1]hept-2-ene (DBH). Correlation between viscosity effect and stepwise de...
The thermal conductivity of aqueous nanofluids increases with temperature while it shows a decrease in nonaqueous nanofluids. Interestingly, the ratio of thermal conductivity of both nanofluids with respect to base fluids (k/kf) remains constant with an increase in temperature, irrespective of th......
This overall view of the viscosity reduction’s dependence on temperature in the presence of the additive at these temperatures can be observed in Table 6 and Figure 5. Therefore, based on the analyzed results, it can be inferred that if the base oil has a higher viscosity, the impact of ...