6520 Polyester film /fish paper flexible composite material is a two-layer flexible laminate in which polyester film is bonded with fish paper.
6521 Polyester film /insulating paper flexible composite material is made of polyester film with insulating paper. Characters
It is Class E insulating material.This product has excellent dielectric property and high mechanical property.
Application
It is suitable for slot insulation, interphase insulation and liner insulation in electric motor and electric apparatus.
Properties | Units | Values |
Nominal
thickness of the product (mm) |
0.15 | 0.17 | 0.20 | 0.22 | 0.25 | 0.27 | 0.30 | 0.35 | 0.45 |
Thickness
tolerance | mm | ±0.020 | ±0.030 | ±0.035 | ±0.045 |
Grammage | g/m2 | 190±28 | 215±32 | 250±38 | 275±40 | 310±46 | 330±50 | 370±55 | 490±73 |  550±32
|
Nominal
thickness of film | μm | 25 | 36 | 50 |
Tensile strength | MD | No bending | N/ 10mm | ≥100 | ≥110 | ≥120 | ≥135 | ≥150 | ≥175 | ≥200 | ≥240 | ≥360 |
After bending | ≥70 | ≥75 | ≥80 | ≥85 | ≥95 | ≥100 | ≥110 | ≥180 | ≥275 |
TD | No bending | ≥80 | ≥85 | ≥90 | ≥90 | ≥95 | ≥100 | ≥105 | ≥120 | ≥180 |
After bending | ≥50 | ≥50 | ≥50 | ≥55 | ≥60 | ≥70 | ≥80 | ≥115 | ≥175 |
Elongation | MD | % | ≥2 | ≥3 |
TD | ≥8 | ≥10 |
Breakdown
voltage | No bending | kV | ≥8.0 |
After bending | ≥6.0 |
Bonding property
at room temp. | | No delamination |
Bonding property
at 155℃±2℃ 10min | | No delamination,
no bubble, no adhesive flow |
