Mechanical Tests - Project1

2.4. Mechanical Tests

2.4.1. Tensile properties

Specimens of dimension 130mm x 25mm x 0.07mm were prepared from the blown films for determining the tensile strength, tensile modulus and elongation at break as per ASTM D882 in Universal Testing Machine (UTM, Lloyds Instruments Ltd., UK) at a gauge length of 50 mm and a speed of 50 mm/min.

2.4.2. Tear strength

Tear test for the prepared samples were performed as per ASTM D1922 in Pendulum Tear tester (ATSFAAR, Vignate MI, Italy) with maximum load of 3920 grams. The samples were conditioned at 23 ± 5°C and 55% RH prior to testing and ten replicate specimens were used for each test. The data reported are the average of ten tests.