Papers by Keyword: Mixing Properties

Abstract: In the process of open mill mixing, the rubber material is mainly affected by shearing action and stretching action. In order to research the impacts that shearing action and stretching action have on the final mixing properties of rubber, firstly, the mill mixing process was simulated and calculated by PLOYFLOW software in the paper, and worked out the magnitude of shearing action and stretching action under different mixing conditions; then tested the properties of different kinds of mixing rubber which were mixed under different mixing conditions of open mill; finally, worked out the impacts which shearing action and stretching action have on the properties of mixing rubber by comparisons of the result of simulation and of the properties of mixing rubber.

Abstract: In this paper, the 3D flow field and dynamic mixing processing in the continuous mixer with new-type rotors have been studied using finite element software package Polyflow. The influences of continuous mixer process conditions on mixing properties were analyzed by numerical simulation. The results show that the dispersion property is mainly affected by the rotational speed of rotors and the viscosity of polymer. Better dispersion property can be gained as and the viscosity increase. However, the distribution property is mainly affected by feed rate, and the distribution efficiency will reduce if feed rate is too fast.

Abstract: In this paper, the three-dimensional flow field and dynamic mixing processing in the continuous mixer have been studied using the professional polymer processing finite element analysis software package Polyflow. A quantitative evaluation system which consisted of dispersion mixing and distributive mixing was used to evaluate the mixing properties in simulation. Based on these numerical simulations, the influences of rotors’ phase angle and cross-section on mixing properties were analyzed. The results show that the main contribution of phase angles focus on distributive mixing and the main contribution of rotors’ cross-sections focus on dispersion mixing.