PPS (Polyphenylene Sulfide)
High-Performance Engineering Thermoplastic — 5 Sản phẩm Series · 17 Grades
PPS — Polyphenylene Sulfide
- Category: High-Performance Engineering Thermoplastic
- Heat Resistance: Up to 260°C (HDT)
- Flame Rating: UL94 V-0 (Inherent)
- 5 Series: 17 Sản phẩm Cấp Available
About PPS:
Polyphenylene Sulfide (PPS) is a high-performance semi-crystalline engineering thermoplastic renowned for its exceptional heat resistance, inherent flame retardancy, outstanding chemical resistance, and superior dimensional stability. It is widely used in automotive under-hood components, electrical & electronic connectors, precision mechanical parts, and applications requiring sustained performance in extreme environments.
Key Performance Properties
Why PPS is the material of choice for extreme environments
High Heat Resistance
Continuous use temperature up to 200-240°C. Short-term exposure up to 260°C. UL RTI rating among the highest of all thermoplastics.
Chemical Resistance
Resistant to virtually all chemicals below 200°C. No known solvent dissolves PPS at room temperature. Excellent for harsh environments.
Inherent Flame Retardancy
UL94 V-0 rating without halogen additives. Low smoke density and toxicity. Ideal for electrical and electronic applications.
Dimensional Stability
Low mold shrinkage (0.2-0.8%). Excellent creep resistance under load. Maintains tight tolerances across temperature ranges.
Electrical Properties
High dielectric strength and volume resistivity. Stable across wide temperature and frequency ranges. Ideal for connectors and insulators.
Low Moisture Absorption
Water absorption below 0.05%. Minimal property degradation in humid or wet environments. No hydrolysis issues.
PPS Sản phẩm Series
5 specialized product series to meet diverse performance requirements
Fiberglass Reinforced PPS
15%-40% glass fiber reinforced grades offering high strength, rigidity, and excellent heat resistance up to 260°C.
Fiberglass Mineral Composite PPS
GF/mineral hybrid reinforcement for ultra-low warpage, low shrinkage, and tight tolerance precision parts.
Carbon Fiber Reinforced PPS
Carbon fiber reinforced grades delivering ultra-high strength, modulus, and superior wear & friction performance.
PPS Alloy
PPS blended with other polymers for balanced properties: low friction, low wear, chemical resistance, and impact strength.
Non Enhanced PPS
Unfilled pure PPS resin grades for injection molding and extrusion applications requiring inherent PPS properties.
Ngành ứng dụng
PPS serves critical applications across demanding industries
Automotive
Điện tử & Điện
Medical Devices
Aerospace
Industrial Machinery
Home Appliances
Frequently Asked Questions
Q: What is the maximum continuous use temperature of PPS?
PPS has an RTI (Relative Temperature Index) of 200-240°C for electrical and mechanical applications with UL recognition. Short-term exposure to temperatures up to 260°C is acceptable. This makes PPS one of the few thermoplastics suitable for lead-free soldering processes.
Q: Which PPS grade should I choose for my application?
For general structural parts requiring high strength and rigidity, fiberglass reinforced PPS (15-40% GF) is recommended. For precision parts requiring low warpage, choose mineral/GF composite PPS. For high wear and low friction applications, carbon fiber reinforced PPS or PPS alloy is ideal. Liên hệ our engineers with your specific requirements for grade selection support.
Q: Is PPS suitable for food contact or medical applications?
PPS can be formulated for food contact and medical applications. Select grades comply with FDA 21 CFR and USP Class VI requirements. Please specify your regulatory needs when inquiring so we can recommend the appropriate certified grade.
Q: What are the typical processing conditions for PPS?
PPS requires a mold temperature of 130-150°C and melt temperature of 300-340°C for injection molding. Pre-drying at 120-140°C for 3-4 hours is recommended to prevent hydrolysis. Our team provides detailed processing guidelines with every shipment.
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