Description

Polyester film capacitor paper soft composite foil is a kind of insulating material product made of two layer electical insulation fiber paper adhered to one layer polyester film in between.

Structural definition: PMP Insulation Paper has a three-layer composite structure (polyimide film + double-sided aramid paper + H-grade adhesive)

Key features: H-grade temperature resistance 180℃/flexibility/mechanical strength/high electrical strength (specific PMP Insulation Paper breakdown voltage value needs to be supplemented, such as ≥30kV/mm)

Application scenarios: Mainly used for low-voltage motor slot/slot cover/phase insulation (automatic offline compatibility can be emphasized)

(Nominal thcikness)：0.05mm 0.06mm,0.07mm,0.08mm,0.10mm.

(Nominal width)： 840mm, 420mm

It is mainly used for casting voltage mutual inductor, special E class electrical motor and other electrical equipment.

(No.)	(Property)	(Unit)	(Requirement)
1	(Nominal thickness)	mm	0.05	0.07	0.1
2	Tensile strengt h(Before bending MD)	N/10mm	≥50	≥70	≥100
3	(Breakdown voltage)	KV	≥4	≥5	≥5.5
4	(130±2℃10min)	No stratification, no foaming, no glue flow
5	Percentage of contraction (%)	<3

Product advantages

Performance Indicators	Technical Advantages	Test Data (Example)	Test Standard
Temperature Resistance Class	Class H, long - term tolerance of 180℃	After thermal aging at 200℃ for 48h, the strength retention rate is ≥90%	IEC 60216
Tensile Strength	Longitudinal direction ≥120N/10mm	Average value: 135N/10mm	ASTM D828
Edge Tear	Excellent delamination resistance	No delamination after 500 bending cycles	Internal Test
Electrical Strength	High breakdown voltage	≥35kV/mm	IEC 60243