Mechanism of carbon black storage modulus

Does carbon black type N220 have a lower storage modulus?

Moreover, in the rubber composites with the same bound rubber content, the storage modulus at low strain of rubber composites reinforced with carbon black type N220 at 30 phr exhibited lower values than those with carbon black type N330 at 45 phr (Figure 4).

Do carbon surface blacks give higher moduli than non-conventional blacks?

Thus, it appears that conventional blacks (furnace blacks) give higher moduli than non-conventional ones (channel or acetylene blacks) perhaps due to differences in surface activity depending on the nature of the reinforcing filler used.

Does the particle size of carbon black affect mechanical properties?

It has been found that as the particle size of carbon black decreases, the mechanical properties of the rubber product are proportionally improved in the same ratio. Most studies focus on increasing the surface area or decreasing the particle size of carbon black.

Does strain affect the electrical properties of carbon black nanocomposites?

Stress and Relative Resistance Change as a function of Strain for SBR/20% carbon black. For a better understanding of the effect of strain on the electrical properties of the nanocomposites, the relative resistance change has been plotted versus strain, during a cyclic loading procedure, performed at a maximum strain 15%.

Does carbon black affect the strength of rubber composites?

The results showed that the strength of rubber composites increased with increasing carbon black ratios. Interestingly, at the same bound rubber level, rubber composites with N220 presented lower dissipation energy, heat build-up and better mechanical properties than those with N330.

Is carbon black a mechanical reinforcement of rubber?

The mechanical reinforcement of rubber by carbon black (CB) depends strongly on its the size and topography of CB clusters. However, the underlying mechanisms remain largely unexplored.