Abstract
In order to gain a better understanding of the reinforcement mechanism of fillers, the surface activity of a selection of industrial carbon blacks produced by different procedures with varying average particle sizes (spec. N2 surface area) and aggregate structure (DBP number) were investigated using the volumetric gas adsorption method. The adsorption isotherms for polymer-like gases were used to determine the particles’ geometrical surface roughness and the distribution functions of energetically different bonding sites for polymers on the surfaces on atomic length scales. The influence of the surface activity on the reinforcement of elastomers is demonstrated using examples of vulcanisates.
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