Ceast 9050 machine

The impact properties of the composites were evaluated according to ISO179. The Charpy test was carried out on a Instron CEAST 9050 machine (INSTRON, Canton, MA, USA) equipped with a 15 J Charpy pendulum. The hammer fall speed of the tests is 4.08 m/s. The specimens were V-notched in the middle by a V-notch manual cutter: notch dimension was 2 mm at 45°. At least 5 specimens were tested, and an average value was reported. The Charpy impact test measures the energy absorbed by a standard notched specimen while breaking under an impact load. This test consists of striking a specimen with a hammer on a pendulum arm while the specimen is attached to the ends. The hammer strikes in the opposite direction of the notch. The energy absorbed by the specimen is accurately determined by measuring the decrease in movement of the pendulum arm.

Tensile tests were carried out on ISO 527-1A dog-bone specimens using an MTS Criterion model 43 universal testing machine (MTS Systems Corporation, Eden Prairie, MN, USA) at a crosshead speed of 10 mm/min, equipped with a 10 kN load cell and interfaced with a computer running MTS Elite Software. Tests were carried out after two days after the injection-molding process and, during this time, the specimens were stored in a dry keeper at controlled atmosphere (room temperature and 50% of relative humidity). At least five specimens were tested for each blend composition.
Charpy impact tests were performed on notched samples. The V-notch in the center of the specimens was made by a manual V-notch cutter (45° V-notch; depth: 2 mm). For the impact tests, an Instron CEAST 9050 machine (INSTRON, Canton, MA, USA) was used. Five samples of each blend composition were tested at room temperature; in this case, the tests were carried out after two days after their injection molding.
Blend morphological characterization was performed on cryo-fractured Charpy samples by FEI Quanta 450 FEG scanning electron microscopy (SEM; Thermofisher Scientific, Waltham, MA, USA). To avoid charge build-up, the samples were sputtered beforehand (with an LEICA EM ACE 600 High Vacuum Sputter Coater, Wetzlar, Germany) with a thin surface layer of platinum.

The impact properties of the composites were evaluated according to ISO179. The Charpy test was carried out on a Instron CEAST 9050 machine (INSTRON, Canton, MA, USA) equipped with a 15 J Charpy pendulum. The hammer fall speed of the tests is 4.08 m/s. The specimens were V-notched in the middle by a V-notch manual cutter: notch dimension was 2 mm at 45°. At least 5 specimens were tested, and an average value was reported. The Charpy impact test measures the energy absorbed by a standard notched specimen while breaking under an impact load. This test consists of striking a specimen with a hammer on a pendulum arm while the specimen is attached to the ends. The hammer strikes in the opposite direction of the notch. The energy absorbed by the specimen is accurately determined by measuring the decrease in movement of the pendulum arm.