Tensile strength was determined following the method which modified from the ASTM D412 [7]. The size of film specimens was 10 u 30 mm2 which the gauge length of tested area was 10 mm
Tensile strength was determined following the method which modified from the ASTM D412 [7]. Thesize of film specimens was 10 u 30 mm2 which the gauge length of tested area was 10 mm