چكيده به لاتين
In this research, bubble growth modeling using MATLAB software was used as a method for controlling the cell structure. By considering simultaneously the governing equations on growth of bubble and curing of rubber, changes in the radius of the cell were predicted with time. In order to obtain temperature changes, the simultaneous solution of the heat transfer equation and kinetic curing model of Kamal-Server were used. Finally, the prediction of the model was investigated regarding the effect of the temperature process parameter, the formulation parameter of the blowing agent, and the variations of various physical properties such as gas diffusion coefficient, viscosity, conduction diffusion coefficient, density, and surface tension on bubble growth and cell radius. Increasing temperature, viscosity and thermal conductivity coefficients led to decrease of cell radius and increase of initial concentration of blowing agent, gas diffusion coefficient and density with increasing cell radius. At the same time, surface tension variations had the smallest effect on the size of the bubble. The results of this study showed that the present model was able to predict the effect of the above.
