POLYPHENYLSULFONE
Paint chemicals 2025-03-21
Polyphenylsulfone (PPSU) is synthesized from 4.4′-Biphenol and 4.4′-Dichlorodiphenyl Sulfone. PPSU offers excellent performance in impact strength, chemical resistance, heat stability (heat deflection temperature of 207℃). With the above characteristics, PPSU is a kind of high performance engineering thermoplastic resin.
Polyphenylsulfone (PPSU): Overview and Key Properties
| Category | Details |
|---|---|
| Chemical Class | High-performance sulfone polymer |
| CAS Number | 25608-64-4 |
| Appearance | Amber-transparent pellets |
| Key Feature | Exceptional thermal/chemical stability |
Physical & Mechanical Properties
| Property | Value |
|---|---|
| Glass Transition Temp. (Tg) | 220°C (428°F) |
| HDT @ 1.82MPa | 207°C (405°F) |
| Tensile Strength | 70-90 MPa |
| Flexural Modulus | 2.4-2.8 GPa |
| Density | 1.29 g/cm³ |
Performance Advantages
| Characteristic | Performance Level |
|---|---|
| Hydrolysis Resistance | Maintains properties in steam |
| Chemical Resistance | Withstands acids/bases/organic solvents |
| Flame Resistance | UL94 V-0 (0.8mm thickness) |
| Radiation Stability | Withstands >1000 kGy |
Processing Parameters
| Parameter | Conditions |
|---|---|
| Injection Molding | 340-380°C barrel temp |
| Drying | 4-6 hrs @ 150°C |
| Mold Temp. | 120-160°C |
Applications
| Industry | Use Cases |
|---|---|
| Medical | Sterilizable surgical tools |
| Aerospace | Cabin interior components |
| Food Service | Repeatedly sterilized equipment |
| Chemical | Pump components |
Comparison with Other Engineering Plastics
| Material | PPSU vs. Alternatives |
|---|---|
| PSU | Higher Tg (+40°C) |
| PEI | Better chemical resistance |
| PEEK | Lower cost, similar steam resistance |
Safety & Compliance
| Standard | Certification |
|---|---|
| FDA | 21 CFR 177.2440 |
| USP Class VI | Compliant |
| EU 10/2011 | Food contact approved |
Market Data
| Segment | Market Share |
|---|---|
| Medical | 45% |
| Aerospace | 30% |
| Industrial | 25% |
Key Benefits vs. Limitations
| Advantages | Limitations |
|---|---|
| Autoclavable 1000+ cycles | High material cost ($80-120/kg) |
| Inherent flame retardancy | Requires high processing temps |
| Excellent dimensional stability | Limited UV resistance |
Summary
Polyphenylsulfone sets the benchmark for repeated steam sterilization applications, combining unparalleled thermal stability with medical-grade compliance. While premium-priced, its performance justifies use in critical healthcare and aerospace components.
