Polytrimethylene Terephthalate (PTT)
Bio-Based High-Performance Polyester Polymer
Product Overview
Polytrimethylene Terephthalate (PTT) is an advanced thermoplastic polyester synthesized from terephthalic acid (PTA) and 1,3-propanediol (PDO). When bio-based PDO is used, PTT becomes a partially bio-based, low-carbon polyester, offering an excellent balance of mechanical strength, elasticity, chemical resistance, and processing efficiency.
PTT is widely used in textiles, engineering plastics, automotive components, films, and industrial applications, making it an ideal solution for manufacturers seeking high-performance and sustainable polymer materials.
Typical Applications
- Textile fibers (carpets, apparel, upholstery)
- Automotive interior & structural components
- Engineering plastic parts
- Industrial films and packaging
- Blends and modified polyester compounds
Technical Specifications (Typical Values)
| Property | Test Method | Typical Value |
|---|---|---|
| Polymer Type | — | Polytrimethylene Terephthalate (PTT) |
| Bio-Based Content (Optional) | ASTM D6866 | Up to 30–37% |
| Density | ISO 1183 | ~1.30 g/cm³ |
| Melting Point | ISO 11357 | 225 – 235°C |
| Glass Transition (Tg) | ISO 11357 | 45 – 55°C |
| Tensile Strength | ISO 527 | 45 – 60 MPa |
| Elongation at Break | ISO 527 | 40 – 120% |
| Heat Deflection Temperature | ISO 75 | 80 – 120°C |
| Moisture Absorption (24h) | ISO 62 | ≤ 0.3% |
Customized grades available: fiber-grade, injection-grade, reinforced, or modified PTT upon request.
Why Source PTT from Us?
- Direct China PTT polymer manufacturer & exporter
- Stable production capacity and consistent quality
- Support for bio-based and customized formulations
- Flexible MOQ for international buyers
- Professional export packaging & logistics service
Contact Us
Looking for a reliable PTT polymer supplier for textiles or engineering plastic applications?
📩 Contact us today to request:
- Technical Data Sheet (TDS) & MSDS
- Samples for testing and evaluation
- Customized grades, pricing & long-term supply solutions
👉 Work with us to secure high-performance, sustainable PTT materials.
