PAI vs PPSU — Extreme Heat vs Hydrolysis Pioneer
Comparison Overview
PAI vs PPSU — Extreme Heat vs Hydrolysis Pioneer. Choose PAI for high-temperature (>260°C) and high-…
PAI — Polyamide-imide
Properties
| Property | Value |
|---|---|
| Service Temp. | 260°C |
| Density | 1.40 g/cm³ |
| Tensile Strength | 120 MPa |
| Flexural Modulus | 4,500 MPa |
| Hardness | Rockwell E95 |
| Flammability | V-0 |
Advantages
- Highest continuous service temperature (260°C)
- Excellent mechanical strength and rigidity
- Outstanding wear and creep resistance
- Excellent dimensional stability
- Good chemical resistance
Applications
AerospaceSemiconductorAutomotiveOil & Gas
Price Level
High
PPSU — Polyphenylsulfone
Properties
| Property | Value |
|---|---|
| Service Temp. | 180°C |
| Density | 1.29 g/cm³ |
| Tensile Strength | 70 MPa |
| Flexural Modulus | 2,400 MPa |
| Hardness | Rockwell M85 |
| Flammability | V-0 |
Advantages
- Best-in-class hydrolysis resistance
- Outstanding impact toughness
- Excellent thermal stability at 180°C
- Good transparency
- Withstands repeated steam sterilization
Applications
Medical DevicesFood ServiceAerospaceWater TreatmentInfant Care
Price Level
Medium
Selection Guidance
✓ Choose PAI
Choose PAI for high-temperature (>260°C) and high-load mechanical applications such as oil & gas and semiconductor equipment.
✓ Choose PPSU
Choose PPSU for repeated steam sterilization, excellent impact toughness, or humid environment applications such as medical devices and water treatment.
Price Reference
PAI: High
PPSU: Medium
PAI is typically 2-4x more expensive than PPSU.
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