How does the film anti-pendulum impact tester detect the impact resistance of pharmaceutical packaging PET film?
Abstract: Impact resistance is used to characterize the impact strength of PET film under impact load. It is used to evaluate the toughness or resistance of PET film to high temperature impact. In many cases, flexible packaging or other plastic film products are inevitably subjected to sudden shocks that can withstand such sudden loads to meet the requirements of use. Therefore, the impact resistance of PET film is an important performance index in engineering applications, which can reflect the ability of different materials to resist high-speed impact. The following three springs in the small stone simply introduce how to use the film anti-pendulum impact tester to detect the impact resistance of pharmaceutical packaging PET film?
JM-03 film pendulum impact tester
In this paper, JM-03 film pendulum impact tester is used to test the impact resistance of PET film in pharmaceutical packaging. Polyester film (PET) film is made into thick film by extrusion method and then made into film material by biaxial stretching. It is a colorless, transparent and lustrous film with excellent mechanical properties, high rigidity, hardness and toughness, puncture resistance, friction resistance, high temperature and low temperature resistance, chemical resistance, oil resistance, air tightness and aroma retention. Good, it is one of the commonly used barrier composite film substrates, which is commonly used as the outer layer material for retort packaging, and has good printability. PET film in pharmaceutical packaging will have some uncontrollable friction and impact energy during transportation, sales and use. Therefore, it is an important physical index to detect the impact resistance of PET film.
Reference standard:
GB/T 8809-2015 "Plastic film anti-pendulum impact test method" specifies the anti-pendulum impact test of various plastic films.
Experimental principle:
The pendulum-type film impact tester was used for the test. During the experiment, the hemispherical punch impacted at a certain speed and passed through the film sample to measure the energy consumed by the hemispherical punch, thereby evaluating the anti-pendulum impact of the plastic film. ability.
experiment procedure:
1 Measure one point at the center of each sample and take the arithmetic mean of the test results of 10 samples.
2 Select the punch according to the anti-pendulum impact energy required by the sample, so that the reading is between 10% and 90% of the full scale.
3 According to the rules of the instrument use the standard sample.
4 The sample is placed flat in the holder, and the sample should not have wrinkles or excessive tension. The impact surface of the 10 samples should be consistent.
5 Turn the pointer to the large scale of zui, quickly release the hook of the pendulum, make the pendulum impact the sample, and record the reading.
Experimental results:
The selected punch has a diameter of 12.7 mm, a jaw diameter of 89 mm and a capacity weight of 3 J. Under the test conditions, the test results of 10 samples were 1.265 J, 1.310 J, 1.263 J, 1.291 J, 1.252 J, 1.276 J, 1.306 J, 1.243 J, 1.285 J, 1.241 J, respectively.
The above is a brief introduction of how the film pendulum impact tester detects the impact resistance of PET film in pharmaceutical packaging. For details, please call Sanquan Zhongshi Sales Department .
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