Celanese Zytel ST7301 PA6 Resin

Physical Properties

• Density: Measured using injection-molded samples in accordance with ISO 527-1A and ISO 1183 standards, the density is 1.06 g/cc (0.0383 lb/in³).
• Melt Density: At a temperature of 270°C (518°F), the melt density is 0.960 g/cc (0.0347 lb/in³).
• Moisture Absorption: Under conditions simulating ISO 62 standards, the moisture absorption for a 2.00 mm thick specimen is 2.70%.
• Viscosity Number: Measured using 96% sulfuric acid in accordance with ISO 307, the viscosity number is 160 cm³/g (1.60 dl/g).
• Linear Mold Shrinkage:Injection-molded specimens show 0.010 cm/cm linear shrinkage in flow/transverse directions under standard conditions, dropping to 0.0010 cm/cm after 80°C/48h post-treatment.

Polymer Properties:

• Base Material: Polyamide 6 (PA6)
• Modification Features:

• • Super toughened for high impact resistance.
  • Enhanced ductility under dynamic loads.
  • Improved resistance to cracking and notches.
  • Stable performance across wide temperature ranges.

Applications:

These applications align with Zytel ST7301’s high impact resistance, flexibility, and moderate thermal stability, suitable for injection molding, extrusion, or potential 3D printing:

1. Cable Ties:
   • Product: Automotive wiring harness ties, industrial cable management ties.
   • Why Suitable: High elongation (>50%) and impact resistance (>50 kJ/m²) enable durable, flexible ties that withstand repeated bending and tension. Resists oils and temperatures up to ~120°C in engine compartments or construction sites.
   • Processing: Injection molding for precise snap-lock designs; 3D printing feasible for custom or low-volume ties with industrial printers.
2. Automotive Interior Parts:
   • Product: Flexible clips (e.g., for dashboard panels), seat adjustment levers, soft-touch trim inserts.
   • Why Suitable: Super-toughness ensures resistance to impact and vibration in passenger compartments. Moderate thermal stability (~100–120°C) suits interior conditions. Flexibility prevents cracking during assembly or use.
   • Processing: Injection molding for high-volume production; 3D printing viable for prototyping custom clips or low-volume parts.
3. Flexible Tubing:
   • Product: Pneumatic tubing for automotive air brake systems, hydraulic tubing for industrial machinery.
   • Why Suitable: Flexibility and chemical resistance to oils/fuels make it ideal for extruded tubing. High impact resistance ensures durability under pressure, bending, or environmental stress.
   • Processing: Extrusion for continuous tubing; 3D printing possible for short, custom tube segments or fittings with industrial printers.