Effects of Zinc-Free Processing Aids on Silica-Reinforced Tread Compounds for Green Tires

Figure 3

Scanning electron microscopy (SEM) micrograph of rubber composites made with (a) ZFAs and (b) ZCAs. (c) Images of Garvey die extrusions of rubber composites made with (c) ZFAs (enlarged image in (d)) and (e) ZCAs (enlarged image in (f)).