Adhesive polydimethylsiloxane (PDMS) film is successfully fabricated by casting process using thermoplastic polyurethane (TPU). During the curing process, the PDMS lightly cross-linked at the interface with the TPU exhibited a remarkable increase in adhesion properties. The catalytic reaction used for polymerization was regulated by the TPU, which is known to adsorb metal ions. This adhesive PDMS film (APF) demonstrated outstanding adhesion on various substrates under dry and underwater conditions and maintained adhesion even after repeated use. Our findings suggest that the APF could be used an effective waterproof patch by adhering to the surfaces of objects submerged in water.
- Sangyeun Park
- Minhyeok Kim
- Hongyun So
