Tensile properties (modulus at 100% elongation, tensile
strength, and elongation at break) of the rubber vulcanizates were
tested according to ASTM: D412-06a with the use of dumbbellshaped
samples. Tests were carried out using a universal testing
machine (model LR 50K; Lloyd Instruments, Ltd., West Sussex,
UK). Tear strength was determined according to ASTM: D624-00
using angle-shaped samples and a tear strength testing machine
(Lloyd Instruments). A testing speed of 500 mm/min was used
for both tensile and tear properties. A hardness durometer (Shore
A, model 475; PTC Instruments, Los Angeles CA, USA) was used
for hardness tests, the test conditions being in accordance with
ASTM: D2240-05.
Tensile properties (modulus at 100% elongation, tensile
strength, and elongation at break) of the rubber vulcanizates were
tested according to ASTM: D412-06a with the use of dumbbellshaped
samples. Tests were carried out using a universal testing
machine (model LR 50K; Lloyd Instruments, Ltd., West Sussex,
UK). Tear strength was determined according to ASTM: D624-00
using angle-shaped samples and a tear strength testing machine
(Lloyd Instruments). A testing speed of 500 mm/min was used
for both tensile and tear properties. A hardness durometer (Shore
A, model 475; PTC Instruments, Los Angeles CA, USA) was used
for hardness tests, the test conditions being in accordance with
ASTM: D2240-05.
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