Low-pressure plasma systems are unrivalled when it comes to activating even the smallest plastic surfaces with complex geometry. The surfaces of several industrial plastics, such as polyolefins (PE, PP, EPDM or PTFE), are nonpolar to such an extent that they are unsuitable for wetting with coatings, printing inks or adhesives. However, a surface must have good wettability to produce good adhesion for bonding and coating.
The plasma process works without the use of liquids. After the gas discharge is switched off, the process gas returns to its basic (neutral) state. In practice, this means a high degree of safety in operation and no problems with recurring corrosion since the parts are absolutely dry after treatment.
in... - electronics and sensors - automotive supply industry - medical engineering - research and development - plastic-processing industry
before - bonding - printing - coating - painting
Devices are available with different chamber sizes. Systems made by PINK run on microwave as standard. Depending on the application, the systems can also be equipped with RF (13.56 MHz) or LF (40 kHz). Dual-frequency systems are also available for custom applications (RF and MW or LF and MW). The chambers are electrode-free. Therefore, there are no bias voltages on the substrates and no high temperatures.
Benefits Dry, ecological process - no disposal of wet chemicals Extreme activation of surfaces Clean process; high process reliability Suitable for 3D parts - good crack penetration Base material not impaired Different materials can be treated simultaneously Bulk materials can also be treated Low process costs