Polyimide Films

Polyimide film, equivalent to kapton of dupont, is widely used for electrical and electronic appliances with properties of heat resistant(-60c_250c), chemical resistant(almost no organic or inorganic solvents except caustic alkali), dielectric, flame retardant, physical, mechanical and compounded with many materials performances.Size: Thichness:0.025-0.225mm,Width:16-1040mm(slit as required)Length:400/500/800/1000/1100/1500mCharacteristics:1)physical and chemical performance:A. Thickness tolerance: Less than 10%,B. Density:1.40-1.44g/cm3,C. Tensile strength: MD more than135mpa, td more than115mpaD. Elongation(md/td): More than 40%2)dielectric performance:A. Dielectric strength: More than 150kv/mm,B. Dielectric coefficient: Less than 4,C. Tangent of dielectric loss angle: Less than 0.004,D. Volume resistance: Is more than ten billion(at 200centigrade), surface resistance: Is more than ten trillion(at 200centigrade).