Adhesion improvement of the acrylic pressure-sensitive adhesive to low-surface-energy substrates using silicone urethane dimethacrylates
Abstract(#br)The acrylic pressure-sensitive adhesive (acrylic PSA) shows satisfactory adhesion to high-surface-energy substrates, such as glass, metal, and SUS, but it shows very low adhesion to low-surface-energy substrates, such as polyethylene, polypropylene, and polydimethylsiloxane (PDMS). To increase the adhesion strength of PSA to the low-surface-energy substrates, silicone dimethacrylate (SiDMA) was added to decrease the surface energy of the PSA, but it induced degraded peel strength due to plasticization and miscibility problems.