I am looking for one polymeric material except for flourinated polymers which has high service temperature up to 120 C, high flex life and high chemical resistance. Does anyone any suggestion?
One polymeric material that fits the description you provided is Polyetheretherketone (PEEK). PEEK is a high-performance thermoplastic with exceptional properties, including high service temperature, flex life, and chemical resistance.
Here are the key characteristics of PEEK:
High Service Temperature: PEEK can withstand continuous use at temperatures up to approximately 260°C (500°F), making it suitable for applications that require high-temperature resistance.
High Flex Life: PEEK exhibits excellent mechanical properties, including a high flexural modulus and fatigue resistance. It can withstand repeated bending and flexing without significant degradation, making it suitable for applications that require high flex life.
Chemical Resistance: PEEK has excellent chemical resistance to a wide range of solvents, acids, and bases. It is resistant to many organic and inorganic chemicals, making it suitable for applications exposed to harsh chemical environments.
Dimensional Stability: PEEK has low moisture absorption and maintains its dimensional stability even in humid conditions. It has a low coefficient of linear thermal expansion, minimizing the dimensional changes with temperature fluctuations.
Electrical Insulation: PEEK is an excellent electrical insulator, with high dielectric strength and low dielectric constant. It is widely used in electrical and electronic applications.
Due to its exceptional properties, PEEK finds applications in various industries such as aerospace, automotive, electronics, medical devices, and oil and gas.
Thanks for your suggestion. The problem with PEEK is that it has really low elongation at break and high tensile modulus. I need one material to have at least elongation at break above 400% and a tensile modulus around 800MPa.