Reasons for residual glue in PE protective film (3)

- Apr 07, 2021-

The main chain of acrylic pressure-sensitive adhesive is a saturated chain, and it is difficult for the main chain to be broken by general heat energy. The main aging mechanism is ultraviolet light aging; the base material is also mainly ultraviolet light aging. For example, the tensile strength of the PE film substrate after aging for 1 week in an environment of 80°C and 30W ultraviolet light from a uv lamp supplier, the results show that the normal operating temperature has little effect on its aging performance, while the ultraviolet light The impact is greater.