A comparative study focusing on the visco-elastic properties of two series of carbon black filled composites with natural rubber (NR) and its blends with butadiene rubber (NR-BR) as matrices is reported. Strain sweeps at different temperatures are performed. Filler network-related contributions to reinforcement (ΔG') are quantified by the classical Kraus equation while a modified Kraus equation is used to quantify different contributions to dissipation (ΔGD″, ΔGF″).
View Article and Find Full Text PDFHigh compatibility and good rubber-filler interactions are required in order to obtain high quality products. Rubber-filler and filler-filler interactions can be influenced by various material factors, such as the presence of processing aids. Although different processing aids, especially the plasticizers, and their effects on compatibility have been investigated in the literature, their influence on rubber-filler interactions in highly active filler reinforced mixtures is not explicit and has not been investigated in depth.
View Article and Find Full Text PDFPhys Rev E Stat Nonlin Soft Matter Phys
October 2009