Table 4. Mechanical Properties Data of Silica–SBR Compounds according to Extend Oil Content
Hardness (shore A)
M100% (kgf/cm
2
)
M300% (kgf/cm
2
)
Elongation at break (%)
Tensile strength (kgf/cm
2
)
O40
55.8
10.4
29.7
1363
258.1
O20
66.7
22.8
71.1
844
274.1
O15
72.0
29.1
94.8
714
296.2
O10
70.7
25.7
85.1
621
243.8