Simple method for determining the pour point of viscous fluids using a inclined plane rheometer Depar-022 was developed. The method differs from the known method according to GOST 20287-91 and enables to determine the pour points of up to 16 samples in their volume of 0.2 ml at once. Algorithm for calculating the pour point as X-coordinate of center of maximum curvature of the trajectory versus the temperature of panel was proposed.
rheology, inclined plane rheometry, melting point, pour point, flow temperature, oil, bitumen, phase transition, polymorphism, реология, склон-реометрия, температура плавления, температура застывания, температура текучести, нефть, битум, фазовый переход, полиморфизм
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