ZhongYan ZYPEEK® 550G PEEK is a high-performance polyetheretherketone injection molding resin offering exceptional high-temperature resistance, superior mechanical strength, chemical inertness, and excellent electrical insulation for demanding industrial applications.
| Manufacturer | ZhongYan |
|---|---|
| Density | 1.3 g/cm³ |
| Tensile Strength at Break | 100 MPa |
| Elongation at Yield | 40 % |
| Flexural Modulus | 4200 MPa |
Note: See the product description for additional technical specifications
ZhongYan ZYPEEK® 550G PEEK is a high-performance special engineering plastic, polyetheretherketone (PEEK) injection molding grade resin manufactured by Jilin Joinature Polymer Co., Ltd. The material appears as beige or milky-white cylindrical pellets, featuring high regularity and excellent intrinsic color stability. As a flagship representative of the polyaryletherketone (PAEK) family, ZYPEEK® 550G holds a leading position in the global high-performance polymer market, renowned for its outstanding high-temperature resistance, exceptional mechanical strength, and chemical corrosion resistance. This grade is specifically designed for high-performance injection molding and is widely used in high-end manufacturing fields such as aerospace, the automotive industry, electrical and electronics, medical devices, and precision machinery.
| Property | Test Value | Test Unit | Test Standard |
| Density (Crystalline) | 1.3 | g/cm³ | ISO 1183 |
| Density (Amorphous) | 1.26 | g/cm³ | ISO 1183 |
| Shore Hardness D (23 °C) | 85 | — | ISO 868 |
| Water Absorption, Saturated (23 °C, 3.2 mm, by immersion, thick Tensile Bar) | 0.07 | % | ISO 62-1 |
| Water Absorption, Equilibrium (23 °C, 3.2 mm, by immersion, thick Tensile Bar) | 0.4 | % | ISO 62-1 |
| Mold Shrinkage, Parallel | 1 | % | ISO 294-4 |
| Mold Shrinkage, Normal | 1.3 | % | ISO 294-4 |
| Melt Mass-Flow Rate (5 kg, 380 °C) | 20 | g/10 min | ISO 1133 |
| Property | Test Value | Test Unit | Test Standard |
| Tensile Strength at Break (23 °C) | 100 | MPa | ISO 527 |
| Tensile Strain at Yield (23 °C) | 40 | % | ISO 527 |
| Flexural Strength (23 °C) | 170 | MPa | ISO 178 |
| Flexural Modulus (23 °C) | 4200 | MPa | ISO 178 |
| Compressive Strength (23 °C) | 125 | MPa | — |
| Charpy Notched Impact Strength | 6 | kJ/m² | ISO 604 |
| Izod Notched Impact Strength | 6.5 | kJ/m² | ISO 180 |
| Mold Shrinkage, Normal | 1.3 | % | ISO 294-4 |
| Property | Test Value | Test Unit | Test Standard |
| Melting Point | 343 | °C | ISO 11357 |
| Glass Transition Temperature (Tg) (onset) | 143 | °C | ISO 11357 |
| Specific Heat Capacity (23 °C) | 2.2 | kg/°C | DSC |
| Coefficient of Linear Thermal Expansion (CTE), Parallel (Below Tg along flow direction) | 45 | ppm/K | ISO 11359 |
| Coefficient of Linear Thermal Expansion (CTE), Normal (Above Tg along flow direction) | 120 | ppm/K | ISO 11359 |
| Heat Deflection Temperature (1.8 MPa) | 152 | °C | ISO 75-f |
| Thermal Conductivity (23 °C) | 0.29 | W/m-K | ISO 22007-4 |
| Property | Test Value | Test Unit | Test Standard |
| Dielectric Strength (2mm) | 23 | kV/mm | IEC 60243-1 |
| Comparative Tracking Index (CTI) | 150 | V | IEC 60112 |
| Dielectric Constant (23 °C, 1.0e+3 Hz) | 3.2 | — | IEC 60250 |
| Dielectric Constant (50 Hz, 23 °C) | 4.5 | — | IEC 60250 |
| Dissipation Factor (23 °C, 1.0e+6 Hz) | 0.003 | — | IEC 60250 |
| Volume Resistivity (23 °C, 1 V) | 1.00E+16 | ohms · cm | IEC 60093 |
| Volume Resistivity (275 °C) | 1.00E+09 | ohms · cm | IEC 60093 |
The technical data sheet (TDS) of ZhongYan ZYPEEK® 550G PEEK material from Jilin Joinature Polymer Co., Ltd. corporation, if there are differences, please refer to the official website of Jilin Joinature Polymer Co., Ltd..
Outstanding Thermal Resistance: Features a high melting point of 343 °C, a glass transition temperature of 143 °C, and a heat deflection temperature up to 152 °C (1.8 MPa), enabling it to maintain structural stability and mechanical strength under extreme high-temperature environments for long periods.
Superior Mechanical Strength and Rigidity: Boasts a flexural modulus of up to 4200 MPa and a tensile strength at break of 100 MPa, delivering exceptional creep resistance and fatigue strength to replace metals in high-load structural components.
Exceptional Chemical Resistance: Withstands almost all organic and chemical solvents (except for concentrated sulfuric acid and a few strong acids), showing extreme stability in oils, strong acids and alkalis, and high-temperature steam environments.
Excellent Electrical Insulation Properties: Maintains high volume resistivity (1.0E+16 ohms·cm at 23 °C) and a stable dielectric constant across a wide range of temperatures and frequencies, making it an ideal choice for electrical and electronic insulation parts.
Good Processing Flowability: Features a melt mass-flow rate (MFR) of 20 g/10 min (5 kg, 380 °C), classifying it as a medium-to-high fluidity grade well-suited for complex thin-walled structures and high-precision injection molding processes.
Automotive Industry: Used to manufacture peripheral engine components, transmission parts, bearings, gears, seal rings, and fuel system sensor housings, meeting the demands for automotive lightweight design, high-temperature resistance, and oil resistance.
Electrical & Electronics: Extensively applied in semiconductor wafer carriers, connectors, insulators, miniature switch housings, and electronic component skeletons, meeting strict standards for high-frequency, high-temperature, and high-insulation environments.
Medical Devices: Widely used in medical surgical instrument handles, endoscope structural components, and dental auxiliary tools due to its favorable biocompatibility and resistance to repeated high-temperature and high-pressure steam sterilization (autoclaving).
Aerospace & Mechanical Manufacturing: Utilized for manufacturing wear-resistant bushings, aircraft interior structural components, high-temperature resistant sliding blocks, and impellers and seals for corrosion-resistant chemical pumps and valves.
Q1: What kind of drying treatment does ZhongYan ZYPEEK® 550G require prior to injection molding?
A1: Although PEEK resin has low inherent moisture absorption (saturated water absorption of 0.07%), it can still absorb trace amounts of moisture when exposed to air or high-humidity environments. To prevent bubbles, silver streaks, or molecular chain degradation during high-temperature processing (approx. 380 °C), it is recommended to dry the raw material in an oven at 150–160 °C for 3–4 hours before injection molding, ensuring the moisture content drops below 0.02%.
Q2: What are the core advantages of ZhongYan ZYPEEK® 550G compared to conventional engineering plastics (such as PC or PMMA)?
A2: Compared to PC (polycarbonate) or PMMA (acrylic), ZhongYan ZYPEEK® 550G belongs to special engineering plastics, with a long-term service temperature (up to approx. 250 °C) far exceeding the thermal limits of regular engineering plastics (PC typically around 120 °C). Meanwhile, PEEK holds overwhelming advantages in mechanical strength, dimensional stability, wear resistance, and chemical corrosion resistance, specifically targeting extreme high-end operating conditions that conventional engineering plastics cannot handle.
Q3: Does this material comply with relevant international environmental and industrial compliance certifications?
A3: Yes. ZhongYan ZYPEEK® 550G is produced in strict accordance with international environmental and safety standards, complying with the European Union’s RoHS directive and the restrictions on Substances of Very High Concern (SVHC) under the REACH regulation. In addition, depending on specific application requirements, relevant grades can also provide documentation supporting food contact safety or specific medical certifications, helping global customers successfully pass compliance reviews.
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