(a)
(b)
(c)
Figure 4: Abrasion, rebound resilience, heat buildup, and aging properties of rubber composites. (a) William abrasion of rubber composites with different oils. (b) Rebound resilience and heat buildup of rubber composites with different oils. (c) Hardness, tensile strength, and elongation at break of rubber composites with different oils at 168 hrs, 100°C.