Release film release force testing standards
Dec 04, 2024
1. Definition and Terminology
Peel force testing of release films refers to the method used to evaluate the performance of the release film by measuring its peel force under specific conditions. Peel force is the ability of the release film to separate from the surface of the adhered object when subjected to external traction or impact.
2. Testing Instruments
Tensile Testing Machine: Used to measure the peel force of the release film. The range should meet the testing requirements.
Constant Temperature and Humidity Chamber: Used to simulate different temperature and humidity environments to test the performance of the release film under various conditions.
Sandpaper: Used to simulate the adhered object surface to ensure the reliability of test results.
Timer: Used to measure the peel speed of the release film within a specified time.
3. Sample Preparation
Sampling: Randomly select representative samples from the release film products. The quantity should meet the testing requirements.
Dimensions: Cut the release film samples to the specified size, generally 100mm × 100mm.
Cleaning: Wipe the release film samples with a clean cloth or tissue to ensure the surface is free from dust, grease, and other impurities.
4. Peel Force Testing Procedure
Attach Sandpaper: Affix the sandpaper to the test machine platform, ensuring it is flat and free of bubbles.
Place Sample: Position the release film sample above the sandpaper, ensuring the sample makes close contact with the sandpaper.
Set Testing Parameters: Set the speed and testing time for the tensile testing machine. Typically, the speed is 100mm/min, and the testing time is 10s.
Start Test: Begin the tensile testing machine, recording the peel force and peel speed of the release film within the specified time.
Repeat Testing: Repeat the above steps, testing at least 5 samples to obtain reliable results.
Organize Data: Compile the test data into a table and analyze it.
Evaluate and Provide Recommendations: Based on the test results, assess the performance of the release film and provide suggestions or improvement measures.
