Low Temperature Bonding between Polyether Ether Ketone (PEEK) and Pt through Vapor Assisted VUV Surface Modification

The direct bonding between polyether ether ketone (PEEK) and Pt was feasible at low temperature of 150 °C through vapor assisted VUV treatment. This technology was expected to be applied in future body implantable devices for medical applications. The carboxyl functional groups were created on the PEEK surface during the vapor assisted VUV treatment, as well as the hydrate compound was formed on Pt surface. The highest bonding strength and surface release energy reached 1.15 MPa and 4.6 × 10
^-1
N/m, respectively, which was considered strong and comparable with conventional PEEK-based direct bonding.