Influence of Carbon Black Structure and Specific Surface Area on the Mechanical and Dielectric Properties of Filled Rubber Composites

Table 4

Mechanical properties of the investigated vulcanizates.

	NR1	NR2	NR3	NR4	NR5	NR6	NR7	NR8
M100, MPa	0.8	1.2	1.2	1.4	2.1	3.5	2.6	3.8
M300, MPa	2.7	3.2	4.5	4.8	8.3	12.2	9.3	10.8
Tensile strength, MPa	17.7	18.5	15.2	16.5	16.1	15.5	18.5	19.2
Elongation at break, %	740	680	530	520	500	440	650	550
Residual elongation, %	15	15	10	10	10	10	10	10
Shore A hardness	50	52	53	56	61	67	60	65