Abstract
Abstract To address the challenges associated with room temperature curing of UV-curable epoxy adhesives, we present room temperature anionic UV-curable episulfide adhesives. The episulfide adhesives incorporate a thiol initiator and photobase generators (PBGs), composed of xanthone and phosphazene superbases. Lap shear adhesion tests demonstrated that the thiol initiator significantly enhances the lap shear strength of episulfide resin adhesives, reaching a maximum of 13 MPa. Moreover, FT-IR studies confirmed that thiol initiators accelerate the curing reaction of episulfides at room temperature.
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