ZhongYan Polymer ZYPEEK® 770G PEEK

Zhongyan Polymer ZYPEEK® 770G PEEK is a high-performance polyetheretherketone resin delivering exceptional thermal, mechanical, and chemical resistance for demanding global industrial applications.

Additional information

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

Product Overview

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.

Technical Data Sheet (TDS)

Physical Properties

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

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

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

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.

Features & Benefits

  • 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.

Applications

  • 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.

FAQs

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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