2.3. Tensile tests
Material samples were cut from the compression-molded
sheets according to ASTM D 412[21]. Tensile tests were conducted
with a universal testing machine (LR10 K, Lloyd, Fareham, England)
with a 100 N load cell and a crosshead speed of 50 mm/min. Testing was performed at 25 ± 3C and 55 ± 2% RH after equilibrating
the samples at 55 ± 2% RH and 25 ± 3C for 12 days. Ten specimens
were tested for every sample.