Polyimide fibers (PI fibers) have excellent physical and chemical properties and are widely used in many fields.
The physical properties of polyimide fibers include high strength, good elongation and modulus, and excellent heat and oxidation stability. Specifically, the strength range of ether homopolymer fibers is 4~5cN/dtex, the elongation is 5%~7%, and the modulus is 10~12GPa. After 100 hours at 300°C, its strength retention rate can still reach 50%~70%.
Polyimide fibers are widely used in many fields due to their excellent physical and chemical properties. Its high strength, high modulus, good heat resistance and chemical corrosion resistance make polyimide fiber a leader in high-performance materials, and is widely used in aerospace, petrochemical, medical, electronics, military and other fields.