For applications requiring high stiffness and strength at elevated temperatures, a high glass transition temperature (Tg) is essential, as polymers transition from a rigid glassy state to a soft elastomeric state above Tg. However, a higher melting point also demands higher processing temperatures, posing challenges for equipment and processes. Typically, PEEK requires processing temperatures 30–60°C above its melting point, which complicates thermoplastic processing.
For applications requiring high stiffness and strength at elevated temperatures, a high glass transition temperature (Tg) is essential, as polymers transition from a rigid glassy state to a soft elastomeric state above Tg. However, a higher melting point also demands higher processing temperatures, posing challenges for equipment and processes. Typically, PEEK requires processing temperatures 30–60°C above its melting point, which complicates thermoplastic processing.
To address this, Junhua developed LME-PAEK, a low-melting-point PAEK with a 40°C reduction in melting and processing temperatures compared to PEEK, while retaining a nearly identical Tg. This innovation allows processing at lower temperatures without sacrificing high-temperature performance, making it ideal for composites and 3D printing filaments.
LME-PAEK offers a new material solution for composite manufacturing and 3D printing, delivering PEEK-like performance with superior thermal and mechanical properties. It seamlessly adapts to existing PEEK-based processes, particularly in additive manufacturing and composite production, unlocking possibilities for lightweight, large-scale structures.
With successful small- and pilot-scale trials and continuous polymerization process optimization, Junhua now provides LME-PAEK—a breakthrough material that meets stringent industry requirements, pushes the boundaries of lightweight high-performance solutions, and holds vast potential in aerospace composites and additive manufacturing.
1. Revolutionary Thermoforming Efficiency:
LME-PAEK’s 40°C lower melting temperature vs. traditional PEEK significantly enhances composite manufacturing. It accelerates processing, shortens production cycles, reduces energy consumption, and cuts costs—all while maintaining PEEK-level performance. This makes LME-PAEK ideal for high-precision, high-efficiency applications like aerospace and automotive components
2. Exceptional Process Tolerance:
LME-PAEK features a wider processing window, offering manufacturers greater flexibility. Its stable mechanical properties across a broad temperature range improve production consistency, reduce defect rates, and enhance overall efficiency and product quality.
3. Empowerment of Advanced Manufacturing:
LME-PAEK is redefining industry standards for composites and additive manufacturing. Combining high strength, heat resistance, and easier processing, it enables broader adoption of high-performance materials. In aerospace, it facilitates lighter, stronger parts for improved fuel efficiency; in automotive, it drives lightweighting and advances electric vehicle development.
4. Cost-Effective Industrial Production:
For large-scale manufacturing, LME-PAEK’s lower processing temperatures and expanded processing window reduce energy use, equipment wear, and unit costs while boosting output. This economic advantage strengthens its competitiveness in aerospace, automotive, and beyond, delivering greater value to manufacturers.
| Test Item | Test Standard or Instrument | Unit | Typical Value | |
|---|---|---|---|---|
| Mechanical Properties | ||||
| Tensile Strength (23°C) | ISO 527-2/18/50 | MPa | 91 | |
| Tensile Modulus (23°C) | ISO 527-2/18/51 | GPa | 3.8 | |
| Flexural Strength (23°C) | ISO 178 | MPa | 146 | |
| Flexural Modulus (23°C) | ISO 178 | GPa | 3.2 | |
| Thermal Properties | ||||
| Melting Point | DSC | °C | 303 | |
| Glass Transition Temperature | ISO 11357 | °C | 156 | |
| Other Properties | ||||
| Color | - | Natural | ||
| Density | ISO 1183 | g/cm³ | 1.27 |
johannes.dai@jundehpp.de 
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