3DXSTAT™ ESD-Safe PPS 3D Filament
ESD-Safe PPS (Polyphenylene Sulfide) is a high-performance polymer that exhibits exceptional chemical resistance along with ESD surface resistance. Widely known as one of the most chemically resistant thermoplastic materials available, PPS is insoluble in any known solvent under 200°C. PPS is used in some of the most demanding applications in Auto, Chemical Processing, Oil & Gas, and Electronics. It is inherently flame retardant and self extinguishing, making it an ideal material for electrical / electronics applications.
This formulation is an advanced ESD-Safe compound made utilizing a proprietary formulation of carbon nanotubes (CNTs) compounded into PPS. Ideal for use in critical applications that require electrostatic discharge (ESD) protection, a high level of cleanliness, and the outstanding thermal and unmatched chemical resistance.
Product attributes include:
- 10^6 to 10^7 ohm surface resistivity on 3DP sample using concentric ring test method
- Melting temperature (Tm) of 285°C
- Glass Transition Temperature (Tg) of 85°C
- Excellent chemical resistance - insoluble in ANY known solvent under 200°C
- Inherent flame resistance
- Long-term hydrolytic stability - very low moisture absorption
- Exceptional strength and modulus, even at elevated temperatures
- Stable dielectric constant and dissipation factor over a wide range of temperatures and frequencies
- Diameter: 1.75mm, 2.85mm (+/- 0.05mm)
Surface conductivity as a function of extruder temperature:
The surface resistance of the printed ESD-safe part will vary depending on the printer's extruder temperature. For example, if your testing indicates the part is too insulative, then increasing the extruder temperature will result in improved conductivity. Therefore, the surface resistance can be 'dialed-in' by adjusting the extruder temperature up or down depending on the reading you receive on your part.
Recommended Print Conditions:
- Extruder Temp: 330 - 345°C (all-metal extruder)
- Bed Temp: 120 - 160°C
- Chamber Temp: 60 - 90°C (if available on your printer)
- Bed Prep: Ultem™ Tape or Sheet, Glue Stick on Clean Glass
Annealing (post crystalizing) 3D Printed PPS Parts:
Parts printed with PPS must be annealed after printing to ramp-up the crystallinity in the resin. This will maximize mechanical, thermal, and chemical resistance properties. Full annealing generally requires 2-4 hours of heating at 130°C. The following process for annealing your ThermaX™ PPS parts will help assure ideal performance.
Step 1: Place printed parts in cool, room-temp oven. Supports may be left on the part if there is a risk of warping.
Step 2. Set temp to 80°C and allow to stabilize for 1 hour.
Step 3: Raise oven temperature to 130°C, and allow to stabilize 2-3 hours, longer depending upon the size/thickness of the part.
Step 4: Turn off oven heat and allow the printed part to cool to room temperature.