METHOD OF ULTRASONIC MOONEY VISCOSITY CONTROL OF POLYMERS

摘要

FIELD: ultrasonic Mooney viscosity control.;SUBSTANCE: radiator radiates ultrasonic oscillation pulses. Receiver receives pulses that managed to pass sample; their speed is measured as well as decay factor of ultrasonic oscillations. According to parametric model (1), factors Z₁ and Z₂, being individual for any brand of polymer, are determined and Mooney viscosity of polymer sample is determined on base of parameters of ultrasonic oscillations from formula of Mh=Z₁(ραc³/ω²[1+(αc/ω)²]²)Z₂,(1), where Mh is Mooney viscosity, Mooney units; ρ is density of polymer, kg/cm³; c is speed of ultrasound, m/s; α is decay factor of ultrasound, m^-1; ω is ultrasonic oscillation frequency, s^-1.;EFFECT: ability of measurement of plastic-elastic characteristic of polymer.;1 tbl, 3 dwg