METHOD FOR STUDY OF DYNAMICAL BEHAVIOR IN CAPILLARY-POROUS COLLOID MATERIALS BY THE METHOD OF EPR-SPIN MARKERS AT DRYING

摘要

A method for investigation of dynamic behavior of moisture in capillary-porous colloid materials at drying includes placement of wet sample of material in medium with given relative humidity and temperature. At that wet sample of material is placed in resonator of ESR-spectrometer and is dried to balanced moisture content, with registration of the sample weight and the ESR signal, and by the areas under the signals proportional to amount of moisture that acts as solvent and amount of moisture that is not solvent respective amounts of moisture and forms of its bound to material are determined.