Corona Resistance CR/FCR Film  | Disonbor
Corona Resistance CR/FCR Film  | Disonbor
Corona Resistance CR/FCR Film  | Disonbor
  • Corona Resistance CR/FCR Film  | Disonbor
  • Corona Resistance CR/FCR Film  | Disonbor
  • Corona Resistance CR/FCR Film  | Disonbor

Corona Resistance CR/FCR Film

Corona resistance polyimide films, not only with ordinary polyimide film electrical properties, good heat  and chemical resistance, but also with the super corona resistance and thermal conductivity. It is mainly applied to sintering purpose of winding wires, interturn & main wall insulation of traction motors, wind generators, and other special motors. The heat resistance reaches C class.             

 

Description

1.  Thickness

ProductTotal Thickness Structure 
FEPCR FilmFEP
150FCR0190.038mm -25um12.5um
200FCR9190.050mm 12.5um25um12.5um



2. Properties  


No. ItemUnit150FCR019200FCR919
1Corona resistance life  (1 KV voltage, frequency 20 KHztemperature 90 ±2oC pulse rise time 400 ns )hours≥80≥80
2Industrial frequency electric intensity v/um≥120≥100
3Surface resistivity Ω 1X10141X1014
4Volume resistivity Ω. Cm1X10101X1010
5Relative permittivity (48-62 Hz ac)-3.2±0.43.2±0.4
6Dielectric power factor (48-62 Hz ac)-≤3.5X10-3≤3.5X10-3
7Tensile strength Mpa≥80≥80
8Elongation at break %≥40≥40
9Stripping force  N/25mm≥6≥10
10Hot shrinkage rate %        

150oC,  0.5h             ≤1.0       ≤1.0        
400oC, 0.5h≤3.0≤3.0