Abstract
In the previous paper, it was inferred that rubber molecular chain phases and carbon black aggregated phases form the anisotropic layer structure on account of fatigue due to three-dimensional stresses. Along the direction of tensile stresses, rubber molecular chain phases within the layer are oriented and in consequence they acquire low mobilities, whereas along the direction of compression stresses, rubber molecular chain phases between layers form random structures and they acquire high mobilities.
In this paper is investigated in detail the influence of the anisotropic layer structure on the mobilities of rubber molecular chains by measuring the dependence of the dynamic properties on temperature. Temperatures, exhibiting maxmal tan δ, shift to high temperature side along the parallel direction of layer and to low temperature side along the perpendicular direction of layer. Thus it is seen that rubber molecular chain phases have low mobilities and high mobilities along different directions.
Consequently, it is confirmed that the rubber molecular chain phases form oriented structures within a single layer and random structures between different layers.
