Polyester film/ polyaramid fiber paper flexible composite material

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Polyester film/ polyaramid fiber paper flexible composite material

Characteristics and application: Temperature classification is F. Good cutting and overload resistance as well as compatibility with common varnish. Used as the slot insulation between phases for motors and apparatus.


6640(NMN) Technical Characteristics

No Item Unit Normal Value
1 Nominal thickness mm 0.15 0.18 0.20 0.23 0.25 0.30 0.35
2 Thickness tolerance mm ±0.02 ±0.03 ±0.04
3 Weight g/㎡ 180±25 210±30 240±30 260±35 300±40 350±50 430±50
4 Tensile

strength		 lengthwise Normal
N/10mm		 ≥150 ≥160 ≥180 ≥200 ≥220 ≥270 ≥320
bended ≥80 ≥110 ≥130 ≥150 ≥180 ≥200 ≥250
crosswise Normal ≥90 ≥110 ≥130 ≥150 ≥180 ≥200 ≥250
bended ≥70 ≥90 ≥110 ≥130 ≥150 ≥170 ≥200
5 lengthwise % ≥10 ≥12
crosswise ≥15 ≥18
6 Breakdown voltage Normal   KV ≥7 ≥10 ≥11 ≥12 ≥13 ≥15 ≥20
After bending ≥6 ≥8 ≥9 ≥10 ≥12 ≥13 ≥16
7 Bonding strength at room temperature — No delaminating
8 10min

Bonding strength at (180±2) ℃ for 10min		    — No delaminating, blister and gummosis
Remarks: The width of product is general 900mm and the storage life is 12 months. We can cut and supply the tapes according to the requirements of the customers

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