Difference between PVDF and PEEK

PEEK (polyetherether ketone) material has a high continuous use temperature, (about 260 degrees), and also has high stiffness and hardness, as well as some high tensile strength and fatigue strength. In addition, its heat resistance and non-deformation properties and chemical stability are excellent. The material has excellent dielectric properties up to 260 degrees and is resistant to energy radiation. PEEK has excellent comprehensive properties, good mechanical properties, high temperature resistance, and superior chemical resistance, making it a more common advanced plastic.

Characteristics: High mechanical strength, rigidity and hardness, high temperature resistance, chemical resistance and hydrolysis resistance, wear resistance and friction performance. PEEK is widely used in aerospace, medical, mechanical, automotive and food processing industries.

PVDF (polyvinylidene fluoride) has higher stiffness and pressure bearing capacity than the similar polytetrafluoroethylene, but the smoothness and electrical insulation are less. It has high strength and toughness under low temperature conditions and can be self-extinguished. Its operating temperature is between -30 degrees and 150 degrees. PVDF is stable to chlorides, bromides and energy rays.

Features: large allowable working temperature in the air (can continue to work at 150 degrees), excellent chemical corrosion resistance and hydrolysis resistance, outstanding UV resistance and weather resistance. High mechanical strength, good rigidity, good creep resistance. Good sliding and wear resistance. Inherent low flammability, good electrical insulation performance.

However, in terms of temperature and mechanical properties, PEEK is superior to PVDF. Shenzhen Teflon New Material Technology Co., Ltd., has been committed to the field of special plastics for many years, and can carry out extrusion molding, injection molding, die molding, machining molding. According to customer drawings and or sample requirements, develop and manufacture injection molding and molding molds, customize various specifications, a wide range of uses of PEEK parts and finished products.