PPA — Polyphthalamide (PPA) Pellets Supplier China | 280°C High-TempAuto / Electronics
PPA (Polyphthalamide, 聚邻苯二甲酰胺) is a semi-aromatic high-temp nylon with continuous service temp up to 280°C, used in SMT electronic connectors and automotive under-hood applications.
Key Properties of PPA
| Property | Value |
|---|
| **Full name** | Polyphthalamide |
|---|---|
| **Continuous service temp** | **280°C** |
| **Tensile strength** | 90-120 MPa |
| **Glass transition temp (Tg)** | 125-160°C |
| **Moisture absorption** | Low (5-6% vs PA66's 8-9%) |
| **Dimensional stability** | Excellent |
PPA Subdivisions
| Subdivision | Description | Application |
|---|
| PPA Unfilled | Natural | Main grade |
|---|---|---|
| PPA Glass-filled 30% | 30% glass-fiber | Highest load parts |
| PPA Glass-filled 50% | 50% glass-fiber | High rigidity |
| PPA Carbon-filled | Conductive / ESD-safe | Electronic parts |
Applications of PPA
Electronic Connectors
- SMT (Surface Mount Technology) connectors
- USB-C connectors
- 5G connector parts
Automotive Under-hood
- High-temp sensor housings
- Engine bay components
- Turbocharger components
Industrial
- High-temp structural parts
Packaging
- Pellets: 25 kg / bag
- Pre-dried pellets (moisture-sensitive)
Contact — 24h Quote
Daishuming Lingli (代书命) — Founder & Sales Director
📱 +86-13922534393 | 📧 [email protected]
← Back toHigh-Performance Polyamides | Browse OtherSpecialty Products
*© 2025-2026 Huizhou Lingli Trading Co., Ltd. —Specialty Engineering Plastics International Trading from China*
Need PPA quote? 24h response.
Send: grade + quantity + application + destination. FOB Shanghai / CIF major ports. Free TDS / MSDS / RoHS / REACH.
Request Quote