METHOD DETERMINING MANIFESTATION AREA OF ELASTIC TURBULENCE OF TIXOTROPIC MEDIA Russian patent published in 1998 - IPC

FIELD: determination of manifestation area of elastic turbulence of tixotropic media. SUBSTANCE: method includes positioning of medium into rotation viscosimeter and measurement of tangent stresses τ with increasing rates of shift D Measurements are conducted under unsteady time mode with constant temperature greater or equal to melting temperature of examined medium or with varying temperature. First measurement is conducted at melting temperature of examined medium and next measurements are conducted with subsequent increase of medium by 0.5-1.0 C. Manifestation area of elastic turbulence is judged by presence in medium of chaotic variations of values determined by dependence τ(D). EFFECT: improved reliability of method. 2 c, 4 dwg