Study of thermal diffusivity rubber compounds

Measurement of thermal diffusivity was accomplished on the several types of rubber compounds, which are used on different parts of tires. Measuring data was obtained by a non-stationary method within the temperature interval from 25°C to 65°C on the equipment which results from a ČSN 64 01 42 norm. The method is improved on analysis of measured data and accuracy measurement of thermal diffusivity. Duration of thermal diffusivity for one sample last 2,5 hours at least. Measured value of thermal diffusivity samples vary from quantity and type of filler