Abstract
In this study, to establish the method for evaluating the dispersion state of fillers quantitatively, carbon fiber was kneaded and dispersed into the base materials. And fractal dimension, area ratio, and the length of carbon fiber were measured by image analysis. From these values, the dispersion state of carbon fiber and whether the network of carbon fiber was good or bad were evaluated quantitatively. The results showed that by using fractal dimension and its coefficient of variation, coefficient of variation of area ratio, and the rest length ratio of carbon fiber, it was possible to evaluate the dispersion state of carbon fiber and whether the network of carbon fiber was good or bad quantitatively, that is the evaluation method of the dispersion state could be established. Using this method, kneading and dispersed process was also modeled, and the operation condition was discussed by using this model.
