RESEARCH METHOD FOR STRUCTURE TRASFORMATION PROCESSES IN LIQUIDS Russian patent published in 2009 - IPC G01N25/00 G01N11/16 

FIELD: physics.

SUBSTANCE: research method for structure transformation in liquids at which temperature changes take place in liquid sample under study; volume of sample is less then 1 cm³. In each cycle of monotonous and continuous cooling or heating measurements of dynamic shear viscosity versus time η(t) are made in liquid by low-frequency oscillatory viscometer. Measurements of liquid temperature change versus time T(t) are also made. Calculations of temperature process rate Θ(T) as rate-of-change of temperature versus time Θ(T) = ∂T/∂t. By measurement results dynamic shear viscosity versus temperature η(T, Θ) is measured. Based on this indicator thermal energy function E(T) and intermolecular energy ε(T) are calculated by formula , where C is constant of integration. Time duration τ of structure transformation processes in any temperature range from T₁ up to T₂, time period τ for any function E(T) or ε(T) required for temperature change of sample from T₁ up to T₂ are calculated by formula .

EFFECT: provision of authentic and reliable determination and quantitative description of time-resolved structure transformation in any homogenous and heterogenous liquids.

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