PPSU — Polyphenylsulfone (PPSU) Pellets Supplier China |USP VI Medical Grade
PPSU (Polyphenylsulfone, 聚苯砜) is an amorphous thermoplastic offering:
- USP Class VImedical grade (implatable)
- Repeatedly sterilizable (autoclave 134°C / EtO / gamma)
- High heat resistance (180°C continuous)
- Excellent hydrolysis (steam / hot water resistant)
Key Properties of PPSU
| Property | Value |
|---|
| **Full name** | Polyphenylsulfone (Radel-grade equivalent) |
|---|---|
| **Density** | 1.29 g/cm³ |
| **Tensile strength** | 70 MPa |
| **Heat deflection temp (HDT)** | 207°C |
| **Continuous service temp** | 180°C |
| **Glass transition temp (Tg)** | 220°C |
| **Transparency** | Transparent amber |
| **Flammability (UL94)** | V-0 |
| **USP Class VI** | **Yes** |
| **Sterilization** | Autoclave 1000+ cycles / gamma / EtO |
Why PPSU?
PPSU is the medical industry default for medical devices requiring repeated sterilization because:
1. USP Class VI certification (implatable)
3. Transparent amber color (good for visualization)
2. Withstands 1000+ autoclave cycles at 134°C (vs PSU which can't clear that many cycles)
Applications of PPSU
Medical Devices (main grade)
- Surgical instrument handles
- Medical device housings (implatable grade)
- Sterilizable components
- Dental instrument parts
- Endoscope components
Pharmaceutical Processing
- Biopac manufacturing
- Sterile filtration parts
- High-purity fluid handling
Food / Beverage
- Beverage filtration
- Food processing (high-temp reusable)
- Steam sterilization compatible parts
Industrial
- High-temp connectors
- See Green connectors
PPSU Subdivisions
| Subdivision | Description | Medical application |
|---|
| PPSU Natural (Unfilled) | Transparent amber | USP VI main grade |
|---|---|---|
| PPSU Glass-Filled (GF20/GF30) | High rigidity | Surgical instrument housings |
| PPSU Carbon-Filled (CF20) | Black / ESD-safe | ESD-clean |
| PPSU High-Viscosity | For extrusion / film | Tubing |
Packaging
- Pellets: 25 kg / bag
- Film: Custom roll sizes
- Pre-dried pellets (moisture-sensitive)
Contact — 24h Quote
Daishuming Lingli (代书命) — Founder & Sales Director
📱 +86-13922534393 | 📧 [email protected]
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