Tensile test
Tensile strength, elongation at break and Young’s modulus
were determined according to DIN EN 61. For this
experiment, the composites were cut into waisted specimens
(type I, DIN EN 61).
The tensile specimens were tested in a Zwick Z250/SNA
universal testing machine (Zwick/Roell, Germany) with a
displacement speed of 2 mm/min. The gauge length was
100 mm. Respectively, at least five specimens were tested
at 0 machine direction of the roller card. The mechanical
properties determined were maximum strength, strength at
break, deformation at maximum load, deformation at break
and Young’s modulus. The computed results correspond to
average values of samples with the measured specimens.