PPS
Here are the key characteristics of PPS (Polyphenylene Sulfide), a high-performance engineering thermoplastic used in industrial-grade 3D printing and manufacturing:
🧪 Material Properties
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High chemical resistance: Nearly inert to solvents, acids, bases, fuels, and steam.
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Flame retardant: Naturally self-extinguishing (UL 94 V-0).
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High thermal stability: Maintains mechanical strength at extreme temperatures.
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Rigid and strong: Excellent dimensional stability under load.
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Low moisture absorption: Retains properties in humid environments.
🔧 Printing Characteristics
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Print temperature: 300–350°C (requires high-temp hotend).
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Heated bed: 120–160°C.
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Chamber temperature: 130–150°C recommended for best layer adhesion and low warping.
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Specialized equipment required: Industrial or modified printers only.
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Poor bed adhesion: Requires specific build surfaces (e.g., PEI, Garolite, PEEK sheets).
🧱 Mechanical Properties
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Excellent strength and rigidity: Comparable to or better than PEEK in some formulations.
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Creep-resistant: Maintains shape under long-term mechanical stress.
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High wear resistance: Good for friction-based applications.
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Good electrical insulation: Used in electronics and connectors.
🌡️ Environmental Resistance
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Very high heat resistance: Continuous service temperature up to 220–240°C.
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Chemically inert: Used in chemically aggressive and corrosive environments.
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Radiation resistant: Stable under gamma and X-ray exposure.
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Hydrolysis resistant: Performs well in steam/autoclave conditions.
✅ Common Applications
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Automotive engine components
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Electrical and electronic parts (connectors, housings)
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Aerospace ducting and brackets
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Chemical processing components
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Medical and sterilizable parts (in fiber-reinforced grades)
⚙️ PPS vs Other High-Performance Filaments
Property | PPS | PEEK | PEI (Ultem) |
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Printability | Very difficult | Extremely difficult | Difficult |
Temp Resistance | ~240°C | ~260–280°C | ~170–200°C |
Chemical Resistance | Excellent | Excellent | Very Good |
Cost | $$$ | $$$$ | $$$ |