The aging mechanism of PE protective film residual glue
Jul 13, 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 substrate aging 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 the 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. But under the dual effects of heat and ultraviolet light, there is a synergistic aging effect.
