Polyester film/polyester fiber non-woven fabric flexible composite material (F-DMD) is made from high melting point polyester film and hot-rolling polyester fiber non-woven fabric. The polyester film and polyester non-woven fabric are bonded by F-class adhesive.

Characters
It is Class F (155° C) insulating material. This product has high mechanical strength, excellent electrical property, and immerses the function.

Application It is suitable for slot insulation, interphase insulation and liner insulation in Y2 and other F-class electrical motor and electrical apparatus.

 
Properties Unit Values
Nominal Thickness (mm)

0.18

0.2

0.25

0.3

0.35

Visual    Even surface, free from wrinkle blister and impurity.
Breakdown Voltage At room temp KV ≥ 8 ≥ 9 ≥ 11 ≥ 13 ≥ 15
155 ± 2°C ≥ 7 ≥ 8 ≥ 10 ≥ 10 ≥ 14
Tensile strength MD N/cm ≥ 100 ≥ 120 ≥ 150 ≥ 170 ≥ 200
MD after bending ≥ 90 ≥ 105 ≥ 130 ≥ 10 ≥ 180
TD ≥ 90 ≥ 105 ≥ 130 ≥ 150 ≥ 180
TD After bending ≥ 80 ≥ 95 ≥ 120 ≥ 130 ≥ 160
Elongation MD % ≥ 10 ≥ 5
TD ≥ 15 ≥ 5
Bonding property at room temp.

No delamination
Bonding property at 180°C ± 2°C, 10 min

No delamination, no bubble, no adhesive flow.
 

* Material can also be supplied as per customer’s specification.

 
 
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