Many products in self-adhesive stickers involve requirements for radiation resistance, and the self-adhesive paper industry has been a popular industry. However, people often neglect UV aging test chambers to test self adhesive paper samples for radiation resistance and other related tests. The following are three test methods for self adhesive paper samples.
1. Initial viscosity test: When the sample is in contact with the steel ball for a short time under small pressure between the viscosity surface, the initial viscosity test is performed by the oblique rolling ball method, and the steel ball is bonded with adhesive tape. When the steel ball and pressure-sensitive adhesive samples in the viscosity of the surface for a short time, the bonding test, the initial viscosity expressed in steel ball number.
2. adhesion performance: the test plate with adhesive samples suspended vertically on the UV aging test chamber. The lower end of the suspension of the weight of the specified weight, and after a certain period of time with the displacement of the adhesive sample or the time of complete separation of the sample to indicate the viscosity of the label.
3. peel strength: peel strength is an important indicator of adhesive performance. Use the sampling knife to cut the non-drying label into 25 mm wide sections, use the standard roller to press the self-adhesive label into the standard test plate, and then pre-peel the test plate with the test plate, the test plate and pre-peeled self-adhesive label into the test plate intelligent electronic tensile tester upper and lower chuck or left and right chuck respectively. Set the test speed 300mm/min, start the test, and calculate the final peel strength KN/m.
The above is an introduction to the UV aging tester on viscosity and peel strength testing methods. I believe that you have a clearer understanding of the UV aging tester on the test of self-adhesive industry.