Zhongyan Polymer ZYPEEK® 770G PEEK is a high-performance polyetheretherketone resin delivering exceptional thermal, mechanical, and chemical resistance for demanding global industrial applications.
| Manufacturer | ZhongYan |
|---|---|
| Density | 1.3 g/cm³ |
| Tensile Strength at Yield | 100 MPa |
| Elongation at Break | 45 % |
| Flexural Modulus | 4100 MPa |
Note: See the product description for additional technical specifications
ZYPEEK® 770G is a high-performance polyetheretherketone (PEEK) engineering plastic researched, developed, and manufactured by Zhongyan Polymer, a leading manufacturer in the industry. The product appears as natural, uniform crystalline granules and belongs to the semi-crystalline thermoplastic engineering resin category. As a renowned brand in the international PEEK industry, Zhongyan Polymer relies on advanced polymerization processes and strict quality control to ensure that ZYPEEK® 770G holds a prominent position in the global high-performance specialty engineering plastics market, enjoying high industry reputation and widespread recognition among overseas customers.
Thanks to its exceptional high-temperature resistance, outstanding mechanical strength, and superior chemical corrosion resistance, this material is widely used in high-end manufacturing sectors across global markets such as the United States, Germany, Japan, and Europe, spanning aerospace, automotive manufacturing, electrical and electronics, medical devices, and industrial fluid engineering. It is the ideal material choice to replace traditional metals and general-purpose engineering plastics for lightweight designs, extended service life, and extreme operating conditions.
| Physical Properties | 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 tensile bar, immersion test |
0.07 | % | ISO 62-1 |
| Water Absorption, Equilibrium 23 °C, 3.2 mm tensile bar, immersion test |
0.4 | % | ISO 62-1 |
| Mold Shrinkage, Parallel | 1 | % | ISO 294-4 |
| Mechanical Properties | Test Value | Test Unit | Test Standard |
| Tensile Strength, Yield 23 °C | 100 | MPa | ISO 527 |
| Tensile Strain, Break 23 °C | 45 | % | ISO 527 |
| Flexural Strength 23 °C | 165 | MPa | ISO 178 |
| Flexural Modulus 23 °C | 4100 | MPa | ISO 178 |
| Compressive Strength 23 °C | 125 | MPa | — |
| Charpy Impact Strength, Notched | 7 | kJ/m2 | ISO 179 |
| Izod Impact Strength, Notched | 7.5 | kJ/m2 | ISO 180 |
| Mold Shrinkage, Normal | 1.3 | % | ISO 294-4 |
| Thermal Properties | 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 | J/(g⋅K) | DSC |
| Coefficient of Linear Thermal Expansion (CTE), Parallel Below Tg, flow direction |
45 | ppm/K | ISO 11359 |
| Coefficient of Linear Thermal Expansion (CTE), Normal Above Tg, 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 |
| Melt Flow Rate (MFR) 380 °C, 5 kg | 10 | g/10min | ISO 1133 |
| Electrical Properties | Test Value | Test Unit | Test Standard |
| Dielectric Strength 2 mm | 23 | kV/mm | IEC 60243-1 |
| Comparative Tracking Index (CTI) | 150 | V | IEC 60112 |
| Dielectric Constant 23 °C, 1.0e+3 Hz |
3.1 | — | IEC 60250 |
| Dielectric Constant 50 Hz, 23 °C |
3 | — | IEC 60250 |
| Dissipation Factor 23 °C, 1.0e+6 Hz |
0.004 | — | 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 |
Disclaimer: The technical data sheet (TDS) of ZhongYan Polymer ZYPEEK® 770G PEEK material from Zhongyan Polymer corporation, if there are differences, please refer to the official website of Zhongyan Polymer.
Exceptional Heat Resistance: Features a high melting point of up to 343 °C and a glass transition temperature of 143 °C, maintaining stable mechanical and physical performance over long periods in high-temperature environments across various industrial sectors.
Outstanding Chemical Resistance: Resistant to almost all organic and inorganic chemical solvents except for a few strong acids (such as concentrated sulfuric acid), fully satisfying rigorous chemical and fluid engineering environments in overseas markets like the United States and Europe.
Superior Mechanical Strength and Rigidity: Offers a tensile yield strength of up to 100 MPa and a flexural strength of 165 MPa, featuring outstanding creep resistance and wear performance to meet the demands of global high-end machinery manufacturing.
Good Processability: Possesses a stable melt flow index (10 g/10min at 380 °C, 5 kg), making it suitable for conventional thermoplastic processing techniques such as injection molding and extrusion used by advanced manufacturing plants worldwide.
Outstanding Electrical and Insulation Performance: Maintains exceptionally high volume resistivity and stable dielectric constants across a wide range of temperatures and frequencies, meeting the insulation requirements for high-end electrical and electronic appliances in developed markets like Europe and the US.
Automotive Components: Widely sold in global markets for automotive applications, used to manufacture high-temperature structural parts around engines, transmission seal rings, bearings, sensor housings, and fuel system components, effectively reducing vehicle weight and increasing temperature-resistant lifespan.
Medical Devices: Utilizing its excellent biocompatibility, resistance to high-pressure steam sterilization, and radiation resistance, it is widely exported and applied in international markets like Europe and the US for orthopedic implant trial molds, surgical instrument handles, and high-end medical equipment structural parts.
Electrical and Electronics: Suitable for high-frequency insulators, semiconductor wafer carriers, high-temperature resistant connectors, and miniature electronic switch housings for global semiconductor and electronics customers.
Industrial & Aerospace: Tailored for global aerospace and fluid control customers, used in compressor valves, wear-resistant and corrosion-resistant pump impellers, valve seals, aero-engine internal structural components, and oil-resistant pipeline brackets.
Q1: What kind of drying pretreatment is required before injection molding ZYPEEK® 770G in overseas plants?
A1: PEEK is an engineering plastic with low moisture absorption but sensitivity to moisture. To prevent molecular weight degradation or the occurrence of silver streaks and bubbles caused by hydrolysis during high-temperature processing (approx. 380 °C), it is recommended to dry the resin in an oven at 150 °C to 160 °C for 3 to 4 hours before injection molding, ensuring the moisture content is controlled below 0.02%.
Q2: What are the core advantages of ZYPEEK® 770G compared to general-purpose engineering plastics (such as PC or Nylon PA)?
A2: Compared to PC or standard polyamides (PA6/PA66), ZYPEEK® 770G features a significantly higher continuous use temperature (long-term service temperature up to approx. 250 °C), stronger chemical resistance, extremely low smoke density, and superior flame retardancy. Furthermore, its dimensional stability under high-temperature and high-humidity environments far exceeds that of conventional nylon. It is a high-performance specialty substitute material recognized by engineers globally that bridges the gap between traditional plastics and metals.
Q3: Does ZYPEEK® 770G comply with international environmental and food-contact compliance certifications?
A3: Yes. As a globally recognized PEEK manufacturer, Zhongyan Polymer’s ZYPEEK® series products strictly adhere to international quality and environmental standards, and their production processes comply with the restriction of hazardous substances requirements under the EU RoHS directive and REACH regulation. For specific food-contact or drinking-water hygiene applications in overseas markets, relevant compliance certificates can be provided. Please consult with our technical sales team prior to international trade procurement.
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