Abstract
The method of crosslinking a pressure-sensitive adhesive (PSA) significantly affects its properties. There are many different methods of crosslinking, but in recent times, ultraviolet radiation has been used more and more as one of the methods. The process of UV crosslinking is based on the photoinitiation of radical and cationic reactions. In the selection of the radiation source it is important that the absorption spectrum of the footprint coincides with the spectrum of the photoinitiator used. The photoinitiator (its chemical nature, the amount used) and the radiation source are the key elements of the UV network. In this work, the crosslinking of an acrylic adhesive was tested using a 4-acryloyloxybenzophenone photoinitiator. The influence of the UV radiation dose using two lamps, and the thickness of the adhesive layer on the self-adhesive properties of the acrylic adhesive was investigated.
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