Employees of Innovent e.V. Technologieentwicklung in Jena, as later users in the beta test phase, investigated the plasma activation of various plastics after treatment with the piezobrush® PZ3 and the "Standard" module. The investigation of the plastics PP, PC and PTFE with the piezobrush® PZ3 shows that even a single pass over the surfaces at a speed of 20 mm/s produces a significant and reproducible improvement in wettability.
In addition, the surfaces are roughened in the nanometer range. In the final tests of the tensile strength of the bonded joint with epoxy adhesive, it becomes clear that both the improved wettability and the increased roughness are typically necessary but not always sufficient criteria for an improved bond.
Although pre-treatment with piezobrush® PZ3 does not improve the tensile strength of PC and the selected epoxy adhesive, it does improve the tensile strength of the corresponding bonds with PP and PTFE. Overall, the beta testers from Innovent attest to the piezobrush® PZ3's clearly structured and intuitive program structure. It is also easy and safe to switch between the two modules "Standard" and "Nearfield".
Above all, however, the test produced good and homogeneous treatment results for the plasma parameters examined.
Further information can be found in the second relyon plasma newsletter (relyon plasma GmbH, Andrea Werkmann,
