The adhesion of the protective film can be tested by the following methods:
1. Dipping test: Use appropriate divestitudes to peel the test equipment, attach the PET protective film to the surface of the test board or object, and then peel off at a certain speed and angle. Measuring the required divestickness or divest energy to evaluate the intensity of adhesion.
2. Adhesive force test: Use the adhesive tester or tensile tester to bond the PET protective film with the test board or object surface at a certain speed, and then stretch at a certain speed. The size of the adhesive force is measured, and the common unit is n/cm or n/mm.
3. Micro -force test: Use microcontroller or viscosity meter, contact the PET protective film with the surface of the test board or object, and then measure the required force to evaluate the strength of the adhesive force.
4. Dipping test: If the PET protective film is coated with a adhesive, you can use the stripping tester or related equipment to contact the adhesive layer of the PET protective film with the surface of the test board or object. Power or stripping energy.
It should be noted that the test method of adhesion can be adjusted according to the specific application and requirements, and you can refer to the relevant industry standards and test methods. It is recommended to read the instrument's operation manual and follow the operating procedures before actual testing to ensure the accuracy and repetitiveness of the test.