Introduction to Polyphenylene Sulfide-Carbon Fiber Composite (PPS-CF)

I. Core Overview of PPS-CF Material

• Mechanical Enhancement: Tensile strength is 30%-60% higher than that of pure PPS, Young's modulus is significantly improved, and deformation resistance is strong.
• Thermal Stability: Melting point ranges from 280–290°C, long-term service temperature is 200–220°C, short-term temperature resistance reaches 260°C, and thermal conductivity is increased by 2-5 times.
• Chemical Resistance: Resistant to acids, alkalis, solvents, and fuels, superior to PA and POM, and carbon fiber does not affect its stability.
• Dimensional Stability: Low shrinkage rate (0.05–0.2%), extremely low water absorption rate (≤0.05%), and excellent precision.

II. ERYONE PPS-CF: Performance Advantages Under Mild Printing Parameters

1. Adaptable Printing Parameters (Embodiment of Core Advantages)

• Nozzle: Hardened steel/tungsten carbide/ruby material, full-metal hot end.
• Nozzle Temperature: 290-320°C (lower than the 310-340°C of conventional PPS-CF, reducing hot end wear and adapting to more ordinary high-temperature 3D printers).
• Bed Temperature: 100-120°C (no need for 130-150°C high temperature, reducing equipment load, and ensuring good adhesion between printed parts and the platform to avoid warping).
• Chamber Temperature: 50-60°C (stable printing can be achieved only with low chamber temperature, no need for 80-100°C high-temperature environment, and ordinary closed printers with active chamber heating can meet the requirements).
• Nozzle Temperature: 290-320°C (fine-tuned according to carbon fiber content; the higher the content, the closer to 320°C to ensure sufficient melting).
• Printing Speed: ≤200 mm/s (traditional PPS-CF can only be printed at low speeds).
• Retraction: Distance 1.5–2.5 mm, speed 25–35 mm/s.
• Cooling Fan: Turn off or set to ≤5%.

3. Material Preparation

• Drying: Dry at 100–120°C for 6–8 hours (3D printed parts need thorough dehydration to avoid bubbles and pores during printing).
• Storage: Store in a sealed container with desiccant in a long-term dry environment.

4. Common Challenges and Solutions

• Nozzle Wear: Select wear-resistant nozzles and check and replace them regularly.
• Insufficient Interlayer Adhesion: Increase temperature by 5–10°C, reduce speed, optimize chamber temperature, and use high-temperature rafts if necessary.
• Printed Part Deformation: Use high bed temperature + closed chamber + reasonable support, and anneal after printing.
• Carbon Fiber Agglomeration: Ensure thorough drying, optimize parameters to ensure sufficient melting, and check the uniformity of filament feeding.

III. Advantages and Disadvantages of ERYONE PPS-CF Material

1. Advantages

• Excellent Performance Under Mild Parameters: Under the printing conditions of ERYONE PPS-CF (nozzle temperature 290-320°C, bed temperature 100-120°C, chamber temperature 50-60°C), the core performance does not degrade — the tensile strength of printed parts can reach 90 MPa, the flexural modulus is 4000 MPa, and the performance attenuation is ≤5%; key characteristics such as thermal stability (long-term 200-220°C, short-term 260°C) and chemical resistance are equivalent to those of conventional high-temperature printed PPS-CF.
• Superior Thermal Performance: Heat resistance combined with high thermal conductivity, suitable for applications requiring both heat resistance and heat dissipation.
• High Dimensional Precision: Low shrinkage and low water absorption ensure stable precision in complex environments.
• Flame Retardancy: UL94 V-0 rating, halogen-free and low smoke.
• Chemical Durability: Resistant to degradation by oils, fuels, solvents, acids, and alkalis.
• Lightweight: Density 1.31-1.33g/cm³, reducing energy consumption.

2. Limitations

• High Equipment Requirements (Conventional PPS-CF): Requires special high-temperature printers and wear-resistant nozzles, resulting in high investment costs; ERYONE PPS-CF can reduce this threshold.
• Obvious Brittleness: Impact strength is 14–22 kJ/m², which is more brittle than PA12-CF.
• Annealing Required: Anneal at 200–240°C for 2–4 hours, increasing the production process.

IV. Performance Comparison, Applications, and Variants

• Aerospace: Lightweight structural parts, high-temperature resistant electrical enclosures.
• High-End Automobiles: Core under-hood components, new energy battery pack structural parts.
• Electronic Equipment: High-end server heat sinks, 5G equipment enclosures, precision connectors.
• Industrial Fields: Pump components, chemical valves, wear-resistant seals.
• Sports Equipment: Bicycle components, UAV fuselages, golf club accessories.

2. Common PPS-CF Variants

• PPS-CF10: 10% carbon fiber, entry-level, balancing strength and processability.
• PPS-CF20: 20% carbon fiber, high reinforcement, suitable for core components requiring high rigidity.
• PPS-CF/GF Hybrid Reinforcement: Optimizes surface finish and reduces costs.
• PPS-CF-HT: High-temperature optimized variant, long-term service temperature up to 240°C.