Pressure sensitive tape retention and high temperature resistance retention test

The testing of the retention and high-temperature resistance of pressure-sensitive tape is widely used in modern industry and daily life due to its ease of use, strong adhesion, and wide applicability. However, the performance of pressure-sensitive tape may vary for different environments and applications. Therefore, it is particularly important to test the retention and high-temperature resistance of pressure-sensitive tape. This article will introduce how to test these two key features and the key points to pay attention to during the testing process. Pressure sensitive tape retention test 1 The purpose retention force refers to the average force required for the tape to separate from the substrate. It directly reflects the adhesion between the tape and the surface of the object. By testing the retention force, the adhesion effect and service life of the tape on different materials can be evaluated. 2. The commonly used retention force testing methods include T-Peel Test (trapezoidal tear test) and 90 ° Peel Test (right angle tear test). T-Peel Test: Apply the pressure sensitive tape to be tested evenly on the material being tested and allow it to fully cure. After being left under standard conditions for a period of time, prepare for testing. Use specialized pulling equipment to pull the tape along the T-shaped cross arm direction at a constant speed (usually 100mm/min). Record the force curve throughout the entire peeling process and calculate the average peeling strength (N/m or lbf/in) as an indicator of retention force. 90 ° Peel Test: Similar to T-Peel Test, the tape is applied and cured on the tested material. After standing still under standard conditions for a period of time, prepare for testing. Using a pulling device, peel it off from the tested material at a constant speed (usually between 50mm/min and 150mm/min) perpendicular to the length direction of the tape. Record the force curve of the entire process and calculate the peel strength. 3. Precautions: When conducting a retention test, the following points should be noted: environmental conditions: ensure that the test is conducted under standard environmental conditions, such as temperature, humidity, and pressure. These factors may affect the performance of the tape. Sample preparation: The quality of the tape should be carefully checked before use, and appropriate preparation work should be carried out before testing to ensure consistency and accuracy of the results. Test parameter setting: Select appropriate testing speed and other parameters according to actual needs, ensuring that they can simulate real usage situations. Data processing: Correctly understand and analyze test data in order to draw meaningful conclusions. High temperature resistance retention test of pressure-sensitive tape 1 The purpose of the high temperature resistance retention test is to evaluate the ability of pressure-sensitive tape to maintain its adhesion ability in high temperature environments. This is crucial for tapes that need to be used in extreme environments. 2. Method: High temperature aging test: Fix the tested tape on a specific substrate according to the specified size and shape. Expose the sample to the set high temperature for a certain period of time. After heat treatment, immediately conduct a retention test and compare the results with the control sample that has not been subjected to high temperature treatment. High temperature retention test: Hold the coated and cured pressure-sensitive tape for a specific period of time at the specified temperature. Take out the sample and conduct a retention test, recording the data. 3. Precautions: When conducting high temperature resistance retention tests, attention should be paid to the following aspects: temperature control: ensure that the testing equipment can accurately control the temperature and operate stably within the set range. Time control: Strictly follow the heat treatment time and retention test time specified in the experimental plan to carry out the operation. Sample status monitoring: Before and after testing, the physical appearance of the sample should be inspected to observe any deformation, softening, or other changes. Data comparison analysis: Compare the retention force data at high temperature with the retention force data at room temperature to identify differences and trends. By testing the retention and high-temperature resistance of pressure-sensitive tape, we can gain a deeper understanding of its performance under different conditions, thereby providing reliable data support for its effective application in various scenarios. In practical work, corresponding testing plans should be designed and implemented according to specific needs to ensure that the selected tape products meet the expected requirements and bring convenience and safety to production and life.