6640
polyester film/Nomex paper flexible composite material (NMN) is a three-layer
flexible laminate in which Du Pont Nomex
paper is bonded to the two sides of polyester film.
CharactersIt
is Class F insulating material.
This
product has high mechanical strength, excellent electrical property, and good
heat-proof functions.
ApplicationIt
is suitable for F-class electrical motors as slot liner and turn-to-turn
insulation.Specification
Nominal thickness(mm):
0.15, 0.18, 0.20, 0.23, 0.25, 0.30, 0.35
Nominal width(mm):914
Properties | Units | Values |
Nominal thickness | mm | 0.15 | 0.18 | 0.20 | 0.23 | 0.25 | 0.3 | 0.35 |
Thickness
tolerance | mm | ±0.02 | ±0.03 | ±0.04 |
Grammage | g/m2 | 180±25 | 210±30 | 240±30 | 260±35 | 300±40 | 350±50 | 430±50 |
Tensile strength | MD | No bending | N/50mm | ≥150 | ≥160 | ≥180 | ≥200 | ≥220 | ≥270 | ≥320 |
After bending | ≥80 | ≥110 | ≥130 | ≥150 | ≥180 | ≥200 | ≥250 |
TD | No bending | ≥90 | ≥110 | ≥130 | ≥150 | ≥180 | ≥200 | ≥250 |
After bending | ≥70 | ≥90 | ≥110 | ≥130 | ≥150 | ≥170 | ≥200 |
Elongation | MD | % | ≥10 | ≥12 |
TD | ≥15 | ≥18 |
Breakdown
voltage | No bending | kV | ≥7 | ≥10 | ≥11 | ≥12 | ≥13 | ≥15 | ≥20 |
After bending | ≥6 | ≥8 | ≥9 | ≥10 | ≥12 | ≥13 | ≥16 |
Bonding
property at room temp. | | No delamination |
Bonding property
at 180℃±2℃ 10min | | No delamination,
no bubble, no adhesive flow |
Temp. index of
heat-resistance in a long term (TI) | — | ≥155 |
