Abstract
UV-crosslinkable warm-melt pressure-sensitive adhesives based on acrylics The target of this article is to show the preparation of new generation of UV-crosslinkable warm-melt acrylic pressure-sensitive adhesives (PSAs) and the experimental test of their adhesive properties in comparison with typical conventional hot-melts adhesives. New generation of UV-crosslinkable acrylic warm-melts PSAs containing unsaturated photoinitiator, incorporated during polymerization process into polymer chain, and photoreactive diluents added to PSA systems after polymerization allows producing of wide range of self-adhesive materials, such as labels, mounting tapes, masking and splicing tapes, and sign and marking films.
Highlights
Pressure-sensitive adhesives (PSAs) are nonmetallic materials used to bond other materials, mainly on their surfaces through adhesion and cohesion[1]
Pressure-sensitive adhesive acrylics can be applied in forms as a solvent-borne, as a water-borne and as a solvent-free system, especially acrylic hot-melts characterized by very high coating temperatures between 130 and 150°C 3 – 4
Our work present development on warm-melt photoreactive PSAs area based on acrylics, which were manufactured by using of solvent-free acrylic PSAs containing photoreactive diluents and additional photoinitiators
Summary
Pressure-sensitive adhesives (PSAs) are nonmetallic materials used to bond other materials, mainly on their surfaces through adhesion and cohesion[1]. Pressure-sensitive adhesive acrylics can be applied in forms as a solvent-borne, as a water-borne (dispersions) and as a solvent-free system, especially acrylic hot-melts characterized by very high coating temperatures between 130 and 150°C 3 – 4. Commercial photoreactive acrylic pressure-sensitive adhesives are known in the form of hot-melts coated at higher temperature, usually from 130 to 150°C 6.
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