PPS — PolyphenyleneSulfide (PPS) Pellets Supplier China | Electronics / Automotive Grade
PPS (PolyphenyleneSulfide, 聚苯硫醚) is a high-performance semi-crystalline thermoplastic offering:
- High rigidity at elevated temp
- Excellent chemical resistance (best in class)
- Inherent flame retardance (UL94 V-0, no additives)
- Excellent dimensional stability
- High HDT (>260°C glass-filled)
Key Properties of PPS
| Property | Value |
|---|
| **Full name** | PolyphenyleneSulfide |
|---|---|
| **Density** | 1.34-1.40 g/cm³ (unfilled), 1.50-1.65 g/cm³ (glass-filled) |
| **Tensile strength** | 75-85 MPa (unfilled), 130-180 MPa (glass-filled) |
| **Heat deflection temp (HDT)** | 135°C (unfilled), **260°C** (glass-filled) |
| **Continuous service temp** | 200°C (unfilled), **260°C (glass-filled)** |
| **Glass transition temp (Tg)** | 88-92°C |
| **Melting point (Tm)** | 280°C |
| **Flammability (UL94)** | **V-0** (inherent, no additives needed) |
| **Chemical resistance** | **Best in class** (acids / bases / fuels) |
| **Moisture absorption** | 0.02% (very low) |
PPS Subdivisions (available grades)
| Subdivision | Description | Application |
|---|
| **Linear PPS** | Linear molecular structure | Highest crystallinity, highest HDT |
|---|---|---|
| **Branched PPS** | Branched molecular structure | Better flow, easier molding |
| **High molecular weight PPS** | Higher molecular weight | Better mechanical properties |
| **PPS Glass-Filled (GF30/GF40)** | 30%/40% glass-fiber reinforcement | High rigidity structural parts |
| **PPS Carbon-Filled (CF30)** | 30% carbon-fiber reinforcement | ESD-safe / high-rigidity |
| **PPS Mineral-Filled** | Mineral / talc filled | Dimensional stability / low warpage |
Applications of PPS
Electronics
- SMT connectors
- LED sockets
- Coil bobbins
- Switch / relay components
- High-temp PCB substrate
Automotive Under-Hood
- High-temp sensor housings
- Turbocharger components
- EGR valve parts
- Fuel rail components
- 高温 connector bodies
Industrial
- Pump housings (chemical resistant)
- Valve components
- Filter housings
- High-temp gears / bearings
Appliance
- Microwave oven components
- Hot air blower fans
- High-temp connectors
PPS Specifications (grades specs)
| Specification | Typical |
|---|
| **Density** | 1.34 g/cm³ (unfilled) |
|---|---|
| **Tensile Strength** | 75 MPa (unfilled) |
| **Flexural Modulus** | 3.8 GPa |
| **HDT (1.8 MPa)** | 135°C (unfilled), 260°C (GF40) |
| **Flammability (UL94)** | V-0 |
| **Melt Flow (315°C/5kg**) | 20-100 g/10min |
| **Drying** | 150°C x 4h |
Packaging
- Pellets: 25 kg / bag (industry typical)
- Pellets: 500 kg / super sack (bulk orders)
- GF-filled: Pre-dried pellets (moisture-sensitive)
- Custom packaging on request
Contact — 24h Quote
Daishuming Lingli (代书命) — Founder & Sales Director
📱 +86-13922534393 |📧 [email protected]
Send: grade + quantity + application + destination → 24h reply with TDS / MSDS / RoHS / REACH + FOB Shanghaipricing.
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