The fractal dimensions of carbon-black-filled polymers and elastomers.Part 2. The fractal dimensions of carbon-blackfilled systems

摘要

Values of the fractal dimensions, characterising the internal structure and mechanisms of structure formation of dispersed systems, were obtained. The obtained dependences for individual clusters and images as a whole are linear in log-log coordinates. The slope of the dependences varies in the range 1.38-1.82. The obtained dependences can be divided into two groups: for systems with a low filler content (up to 10%) and for systems with a high filler content (over 15%), and accordingly with relatively low (up to 1.5) and high fractal dimensions and different (cluster-cluster and cluster-particle) mechanisms of formation of fractal structures. The influence of radiation dose (7-60 Mrad) on the structure and fractal dimensions of systems was investigated. Using the concept of fractal dimensions, the combined state of carbon black aggregates is described. It is shown that the fractal dimensions of dispersed systems filled with carbon black depend on their preparation and exposure to external effects.