Burst Diaphragms Based on Carbon Black/Silica Hybrid Filler Reinforced Nitrile Rubber Compounds

Table 4

Mechanical properties of the prepared samples.

Property	Test method	Dimensions	NBR	NC50S0	NC25S25	NC0S50
Hardness	IRHD	—	50	66	70	76
Modulus 100%	D412	MPa	0.70	6.30	3.32	2.95
Modulus 200%	D412	MPa	1.50	7.60	6.71	4.94
Modulus 300%	D412	MPa	2.70	12.12	10.72	7.27
Tensile strength	D412	MPa	1.80	21.33	22.20	24.21
Elongation at break	D412	%	231.1	319.2	478.2	657.8
Abrasion	D5963	mm^3	380.0	291.3	279.18	273.05
Burst strength	—	barg	—	21.1	18.3	14.6