How is the adhesive strength of Encasement Adhesive Tape determined?

Measurement methods

The adhesive strength of packaging adhesive tapes can be determined using the following methods:

1. Peeling test method: Stick the adhesive tape on a flat surface, and then use a test machine with a fixed peeling angle and speed to peel the adhesive tape from the surface. During the peeling process, record the required maximum peeling force, and calculate the adhesive strength between the adhesive tape and the surface according to the selected test conditions.

2. Compression test method: Adhesive tape is glued between two metal plates, and then a certain pressure is applied using a press to make the two plates press against each other. The maximum shear force required is then measured and the bond strength between the adhesive tape and the two metal plates is calculated according to the selected test conditions.

3. Shear test method: Adhesive tape is glued to a flat surface and cut using a shear test machine at a specified speed and angle. The maximum shear force required is then recorded and the bond strength between the adhesive tape and the surface is calculated according to the selected test conditions.

Measurement steps

Here are the specific steps for each method:

1. Peel test method:

• Prepare a flat surface such as a metal plate, glass plate, etc.

• Fix the standard test plate with one end of the adhesive tape on the testing machine, and stick the other end of the adhesive tape on the above surface.

• Set the peeling speed and peeling angle, and start the test machine for peeling test.

• Record the maximum peel force required during peeling and calculate the bond strength between the adhesive tape and the surface according to the selected test conditions.

2. Compression test method:

• Prepare two flat metal plates, one of which is coated with adhesive tape.

• Place two metal plates in a press and apply pressure so that they are pressed against each other.

• Measure the maximum shear force required and calculate the bond strength between the adhesive tape and the two metal plates according to the selected test conditions.

3. Shear test method:

• Prepare a flat surface such as a metal plate, glass plate, etc.

• Apply the adhesive tape to the surface, making sure that the adhesive tape is firmly attached to the surface.

• Using a shear testing machine, cut it at a specific speed and angle.

• Record the maximum shear force required during the shearing process and calculate the bond strength between the adhesive tape and the surface according to the selected test conditions.

In conclusion, different test methods can be used for different types of adhesive tapes, but an appropriate method needs to be selected to ensure the accuracy and repeatability of the test results. During the test, attention should be paid to the accuracy and consistency of the operation to ensure the accuracy and repeatability of the test results. Attention should be paid to the accuracy and consistency of operation during testing to ensure the accuracy and repeatability of test results. At the same time, according to the type and application scenario of the specific adhesive tape, a suitable test method can be selected.