Polymers Lab - IZOD Impact Test of Notched Polymer
Introduction
The IZOD impact test is a method used to determine the impact resistance of materials. The main objective of this experiment is to measure the impact strength of three specimens’ material by measuring the amount of the energy required to cause the material to fracture, using Avery Denison 6709 IZOD impact tester.
Materials and Methods
Apparatus:
Three specimens with a machined 45° notch (V-Notch) at room temperature {Polycarbonate, Polyamide (Nylon 12) and High Impact Polystyrene (HIPS)}. Avery Denison 6709 IZOD impact tester, used to measure the energy required to cause the specimens to fracture. Figure1. Vernier calliper used to measure the dimension of the specimens, as …show more content…
Materials and Methods
Apparatus:
Instron model 8500 universal testing machine, as shown in figure 6. Thermocouple used to measure the temperature (°C). Stopwatch used to record the time (s). Polycarbonate specimen of 12.82 mm wide, 186 mm long and 2.89 mm thick. Figure 6: Instron model 8500 universal testing machine
Procedure:
The thermocouple was taped to the centre of the specimen and the temperature was recorded before the test start. The specimen was placed between the grips of the testing machine and tightened. The position of grips at zero position was recorded. The stopwatch was set up at the same time of the test. The specimen was loaded in the tensile direction to zero position +3 mm and then subjected to a sinusoidal loading cycle at 8 Hz. The temperature was recorded at 20 second intervals. When 13 data points have been collected, the temperature was stabilised and the test stopped.
Results
The graph below shows the cyclic waveform function of the polycarbonate specimen. Figure 7: Graph of displacement vs
Introduction
The IZOD impact test is a method used to determine the impact resistance of materials. The main objective of this experiment is to measure the impact strength of three specimens’ material by measuring the amount of the energy required to cause the material to fracture, using Avery Denison 6709 IZOD impact tester.
Materials and Methods
Apparatus:
Three specimens with a machined 45° notch (V-Notch) at room temperature {Polycarbonate, Polyamide (Nylon 12) and High Impact Polystyrene (HIPS)}. Avery Denison 6709 IZOD impact tester, used to measure the energy required to cause the specimens to fracture. Figure1. Vernier calliper used to measure the dimension of the specimens, as …show more content…
Materials and Methods
Apparatus:
Instron model 8500 universal testing machine, as shown in figure 6. Thermocouple used to measure the temperature (°C). Stopwatch used to record the time (s). Polycarbonate specimen of 12.82 mm wide, 186 mm long and 2.89 mm thick. Figure 6: Instron model 8500 universal testing machine
Procedure:
The thermocouple was taped to the centre of the specimen and the temperature was recorded before the test start. The specimen was placed between the grips of the testing machine and tightened. The position of grips at zero position was recorded. The stopwatch was set up at the same time of the test. The specimen was loaded in the tensile direction to zero position +3 mm and then subjected to a sinusoidal loading cycle at 8 Hz. The temperature was recorded at 20 second intervals. When 13 data points have been collected, the temperature was stabilised and the test stopped.
Results
The graph below shows the cyclic waveform function of the polycarbonate specimen. Figure 7: Graph of displacement vs