PRODUCTS

On-Stop Insulation Materials for Motors,Transformers,Reactors and Rail Transit.

Home

Products

6650(NHN) Polyimide Film, Polyaramid Fiber Paper, Soft Composite Material

It is primarily used in motors of H class and above, or other specialized motors, for slot-to-slot insulation, turn-to-turn insulation, layer-to-layer insulation, and liner insulation. Additionally, it can also serve as an insulating material for special transformers or other electrical equipment with high‑temperature‑resistance requirements.

Keywords:

insulation Material

Category:

Composite Series

Rail transit

Nuclear and hydro power

Inquiry

Recommended

Product Description

Product Applications

Product Description:

6650(NHN) polyimide film–polyaramid fiber paper flexible composite material is manufactured by laminating a layer of polyimide film with two layers of DuPont polyaramid fiber paper on the top and bottom, using an imported Class C adhesive. The surface N‑paper (imported polyaramid fiber paper) is made from 100% meta‑aramid fibers that have been calendered, ensuring compatibility with virtually all resins and varnishes, as well as excellent resistance to acid and alkali corrosion.

The flexible composite material 6650(NHN) is rated for Class H (180°C) and exhibits excellent mechanical properties, including high tensile strength and superior edge tear resistance, as well as good electrical strength. Its surface is smooth and it demonstrates strong adhesion to insulating varnishes.

6650 (NHN) is primarily used for motors with H‑class or higher insulation ratings, as well as other specialized motors, for inter‑slot insulation, turn‑to‑turn insulation, layer‑to‑layer insulation, and liner insulation. In addition, it can also serve as an insulating material in special transformers or other electrical equipment with high‑temperature resistance requirements.

Performance Requirements for 6650 (NHN50) Flexible Composite Materials

Serial number	Indicator Name		Unit	Indicator value
1	Nominal thickness		mm	0.13	0.15	0.18	0.20	0.25	0.30	0.35	0.45
2	Structure		thousand	2-1.2-2	2-2-2	2-3-2	2-4-2	2-6-2	2-7.5-2	2-10-2	2-14-2
3	Thickness tolerance		mm	±0.015	±0.015	±0.02	±0.02	±0.02	±0.025	±0.030	±0.040
4	Quantitative (reference value)		g/m ²	125±20	155±20	185±25	215±25	290±25	345±35	430±35	585±45
5	composition	Imide film	mm	0.030	0.050	0.075	0.100	0.150	0.188	0.250	0.350
5	composition	Aramid paper	mm	0.050	0.050	0.050	0.050	0.050	0.050	0.050	0.050
6	Stretching Intensity	Vertical	N/mm	≥80	≥120	≥140	≥160	≥200	≥250	≥270	≥290
6	Stretching Intensity	Horizontal	N/mm	≥60	≥80	≥90	≥100	≥120	≥150	≥170	≥190
7	Elongation	Vertical	%	≥10
7	Elongation	Horizontal	%	≥8
8	Breakdown Voltage	No bending	Kv	≥6	≥8	≥10	≥11	≥12	≥13	≥15	≥18
8	Breakdown Voltage	After bending	Kv	≥5	≥7	≥9	≥10	≥11	≥12	≥12	≥15
9	Adhesion (220°C ± 2°C, 2 h)			No delamination, no bubbling, and no glue flow.
10	Long-term heat resistance temperature index (TI)			≥180
11	Test Method GB/T 5591.2-2002

Note: a) When there are other special requirements, they shall be determined through consultation between the supplier and the purchaser.

　　b) During slitting and use, care should be taken to prevent edge cracking and to avoid surface scratches as well as contamination from oil, dust, and foreign particles.

　　c) Performance parameters for thickness specifications not listed in the table shall be determined in accordance with the standards applicable to the nearest comparable thickness.

Performance Requirements for 6650 (NHN40) Flexible Composite Material

Serial number

Indicator Name

Unit

Indicator value

Nominal thickness

0.13

0.15

0.18

0.20

0.23

0.30

0.33

0.40

Structure

thousand

1.5-2-1.5

1.5-3-1.5

1.5-4-1.5

1.5-5-1.5

1.5-6-1.5

1.5-8-1.5

1.5-10-1.5

1.5-14-1.5

Thickness tolerance

±0.013

±0.015

±0.018

±0.020

±0.023

±0.030

±0.040

Quantitative (reference value)

g/m ²

135±15

165±20

205±25

240±25

280±25

345±30

415±30

555±35

composition

thin film

0.050

0.075

0.100

0.125

0.150

0.200

0.250

0.350

Aramid paper

0.040

Stretching
Intensity

Vertical

N/mm

≥70

≥130

≥150

≥160

≥180

≥250

≥280

≥300

Horizontal

N/mm

≥60

≥85

≥110

≥120

≥130

≥200

≥210

≥230

Elongation

Vertical

≥10

≥12

Horizontal

≥15

≥18

Breakdown
Voltage

No bending

≥7

≥8

≥11

≥12

≥13

≥16

≥20

≥22

After bending

≥6

≥7

≥9

≥10

≥11

≥13

≥16

≥18

Adhesion (220°C ± 2°C, 2 h)

No delamination, no bubbling, and no glue flow.

Long-term heat resistance temperature index (TI)

≥180

Test Method GB/T 5591.2-2002

Note: a) When there are other special requirements, they shall be determined through consultation between the supplier and the purchaser.

　　b) During slitting and use, care should be taken to prevent edge cracking and to avoid surface scratches as well as contamination from oil, dust, and foreign particles.

　　c) Performance parameters for thickness specifications not listed in the table shall be determined in accordance with the standards applicable to the nearest comparable thickness.

AHA, AHA-1 polyimide film–polyaramid fiber paper soft composite material

MMM(PET) composite film