PI Stick Specifications:
6-100mm*1000mm long
PI stick color:
black, brown, brown, dark blue
1. Temperature resistance: It can withstand extremely low temperature, such as in liquid helium at -269 ° C, it will not be brittle.
2. Mechanical properties: The tensile strength of unfilled plastics is above 100Mpa, and the impact strength is as high as 261KJ/m2; as engineering plastics, the elastic modulus is usually 3-4Gpa, and the fiber can reach 200Gpa.
3. Chemical properties: insoluble in organic solvents, stable to dilute acids, general varieties are not resistant to hydrolysis, this seemingly shortcoming of performance makes polyimide a great feature different from other high-performance polymers; If it can withstand 120°C, boil it for 500 hours.
4. Cold and heat shrinkage performance: The thermal expansion coefficient of PI rod is 2×10-5－3×10-5℃, and the highest can reach 10-7℃.
5. Excellent radiation resistance, the strength retention rate of the film is 90% after 5×109rad fast electron irradiation.
6. PI rod has good dielectric properties, the dielectric constant is about 3.4, and the volume resistance is 1017Ω·cm.
7. PI rods are flame retardant materials, the UL index is above V0 and the smoke rate is low.
8. PI sticks are safe/hygienic/non-toxic, can be used to make tableware and medical utensils, and can withstand thousands of disinfections.
