How to Perform the Impact Test on Plastic Films?

Different methods are used to test the impact strength of plastic films. Method A is used for films for which the impact strength requires masses from approximately 50 grams or less . In Method B, impact strength requires masses up to approximately 6 kilograms for breaking the plastic film,

Methods A and B, both are used to determine a dart mass. If 50% or more of the samples tested fail, manufacturers need to work on the sample to enhance the quality of the product.

Although falling dart impact test results are expressed in weight, converting the results from the dart tests into energy is a very easy procedure, and comparisons can be made between these results and those obtained from other impact testers such as percussion-punch-pendulum tests.

The impact tester allows rapid determination of all the test data, the apparatus may be used as a tool for research and also for QA.

Benefits of Using Dart Impact Tester

The benefits of the test apparatus extend beyond its role in simply providing data on the comparisons of material impacts. Data obtained from one testing method cannot directly be compared to another testing method, or to data obtained by tests that use different conditions for the missiles speed, the impinging surfaces diameter, the diameter of the actual sample, the
materials structure and the coating on the head of the dart, and the film thickness.

For accurate energy readings from fresh samples, the amount of film would first need to be established in order to determine the working range of drop weights required, since pendulums need to drop completely through the sample in order to provide energy readings when tested. This falling dart impact tester follows a dart free fall method and is perfect for testing plastic films, coated materials, sheet materials, Nylons, and building materials.

The primary purpose of performing the drop test is to assess how the product design and materials would function if subjected to an amount of outside shock.

During drop testing for products or packaging, the apparatus generates conditions of freefall and sudden impact at various heights and angles of impact. Drop testing is the best way to tell whether or not a product is fit to use in environments where such an impact is likely to occur.

The Final Word

Impact tests mean that we can say with confidence that if the incident were to occur, this product would offer an acceptable level of safety or protection. Conducting tests using a robust test device helps manufacturers and other stakeholders to know whether the products they are packaging are adequately prepared for a shipping environment. Verifying your products packaging performance with impact tests will help to ensure your items stay safe and intact during the shipping process.

Many products involve hand-held devices and tools, laboratory equipment, personal computers, measuring devices for field work, construction tools, and more. In these cases, drop testing may be necessary to ensure that the costly tools or equipment is capable of withstanding the hazards of expected use and abuse. Of course, drop testing may also provide information that may be used for a number of other purposes, such as for product specifications.

To know more about Drop Dart Impact tester, contact Pacorr testing instruments.