SURFACE TREATMENT & PLASMA ACTIVATION

Cold Plasma Surface Activation & Dyne Level Calculator

Calculate robotic atmospheric plasma nozzle scan velocity ($v$), surface dyne energy level (dynes/cm), linear plasma energy dose ($J/cm^2$), and water contact angle reduction for medical catheters, automotive bumpers, and low-surface-energy polymers (PP, PE, PTFE, PEEK).

1. Input Parameters

Plasma Generator Power (P) [Watts]

Atmospheric blown-arc or DBD plasma nozzle power.

Plasma Jet Treatment Width (W) [mm]

Effective plasma flame swath width at standoff distance.

Standoff Distance (z) [mm]

Polymer Substrate

2. Calculation Results

Max Scan Speed (v)

0.0 mm/s

Target Surface Energy

0.0 dynes/cm

Linear Energy Dose

0.0 J/cm²

Water Contact Angle (θ)

0.0°

3. Geometric Visualizer

Tooling & Vector Prepress Engineering Notes

1. Surface Activation Dose Kinetics: Plasma energy dose $D = \frac{P}{v \cdot W}$ introduces polar oxygen/nitrogen functional groups (–OH, –COOH, =O), elevating non-polar polymer surface energies from ~30 dynes/cm to $> 58–72\text{ dynes/cm}$.

2. Contact Angle & Wetting: According to Young-Dupré's equation, as surface energy surpasses adhesive/ink surface tension, water contact angle decreases from hydrophobic $> 95^\circ$ down to hydrophilic $\le 25^\circ–40^\circ$.

3. Robotic Vector Trajectory Rules: To ensure uniform activation without local polymer heat degradation, robotic CNC vector toolpaths must maintain constant linear feed rate with tangential deceleration lead-ins outside the active bonding zone.