Basic Info.
Product Description
Epoxy Prepreg Material of NMN or YMY
Product Specification
This product is a prepreg material which is made of polyester film polyamide fiber paper soft composite material impregnated with class H heat resistance epoxy resin through baking.
Feature and Application
The solidified materials have high mechanical strength, outstanding dielectric properties and adhesive properties, which are suitable for high strength insulation applications, and the heat resistance grade is Class H and Class H.
Product is wound in the conductor directly, can form a strong insulation layer after thermo curing, and the process is simple and convenience.
This product is suitable for the coil layer insulation and end insulation of Class F and Class H dry type transformer, as well as slot insulation and turn-to-turn insulation of electrical machinery.
Performance requirements of NMN or YMY prepreg
| No. | Performance | Unit | Requirements | |||
| 1 | Nominal thickness | mm | 0.20 | 0.25 | 0.30 | 0.50 |
| 2 | Deviation of thickness | mm | ±0.03 | ±0.03 | ±0.03 | ±0.05 |
| 3 | Tensile strength Lengthways no bending |
N/10mm | ≥150 | ≥160 | ≥200 | ≥350 |
| 4 | Volatile content | % | ≤1.5 | |||
| 5 | Soluble resin content | g/ | 35±10 | |||
| 6 | Breakdown voltage | kV | ≥10 | ≥12 | ≥13 | ≥22 |
| 7 | Tensile shear strength | MPa | ≥3.0 | |||
| Remark: Other specification of products (like thickness 0.13mm, 0.15mm) or users have special requirements, supply can be negotiated according to the user's needs. Supply width: 10mm~890mm or YMY10mm~1000mm; |
||||||
() Application process reference (process condition of coil baked)
| Curing temperature | Time |
| 80ºC→120ºC/120ºC | 0.5h/1h~2h |
| 120ºC→160ºC/160ºC | 0.5h~1h/4h~8h |
| 160ºC→120ºC/120ºC | 1h/1h~2h |
| 120ºC→80ºC/80ºC | 0.5h/1h |
| Remarks: Due to diversity of production and application of each transformer plant, the above data can be adjusted according to the actual situation of the manufacturer and the size of the workpiece. | |
6640 polyester thin film aromatic polyamide paper soft composite material (NMN,YMY)
Product Specification
The soft composite material (NMN and YMY) of the polyester film is composed of two layers of polyaromatic amide fiber paper and a layer of polyester film. With excellent mechanical properties, dielectric properties and good heat resistance, anti-tearing strength and paint absorbing ability which is a reliable heat-resistant Class F motor and electrical insulation material. It is suitable for slot insulation, turn-to-turn insulation and liner insulation of motor and electric appliance with low dielectric loss, suitable for all kinds of bad working environment.
Main technical requirements
6440 polyester thin film aromatic polyamide paper soft composite material (NMN,YMY) should accord with the requirements of sheet 1 and sheet 2
1 GB/T5591.3-2018 6640(50μm)(NMN,YMY)
Sheet 1, 6440 polyester thin film aromatic polyamide paper(50μm calendering ) soft composite material (3 layers NMN,YMY) technical demands (GB/T5591.3-2018)
| No. | Property | Unit | Request | |||||||||||
| 1 | Nominal thickness | mm | 0.14 | 0.15 | 0.17 | 0.19 | 0.22 | 0.24 | 0.26 | 0.31 | 0.37 | 0.41 | 0.47 | |
| 2 | Thickness allowed deviation | mm | ±0.021 | ±0.022 | ±0.022 | ±0.022 | ±0.022 | ±0.024 | ±0.026 | ±0.031 | ±0.037 | ±0.041 | ±0.047 | |
| 3 | Quantitative | g/m2 | 140±17 | 150±18 | 170±20 | 200±24 | 230±27 | 270±32 | 305±36 | 360±43 | 450±54 | 515±61 | 590±70 | |
| 4 | Film nominal thickness | μm | 23 | 36 | 50 | 75 | 100 | 125 | 150 | 188 | 250 | 300 | 350 | |
| 5 | Stretch shear strength | Lengthways No bending | N/10mm | ≥100 | ≥150 | ≥150 | ≥170 | ≥190 | ≥220 | ≥240 | ≥270 | ≥330 | ≥370 | ≥400 |
| Crosswise No bending |
≥80 | ≥90 | ≥90 | ≥105 | ≥120 | ≥150 | ≥180 | ≥200 | ≥300 | ≥330 | ≥350 | |||
| Lengthways After bending |
≥80 | ≥80 | ≥90 | ≥100 | ≥110 | ≥130 | ≥170 | ≥200 | ≥250 | ≥300 | ≥300 | |||
| Crosswise After bending |
≥50 | ≥70 | ≥70 | ≥90 | ≥100 | ≥120 | ≥150 | ≥150 | ≥200 | ≥230 | ≥250 | |||
| 6 | Elongation | Lengthways No bending | % | ≥15 | ≥20 | |||||||||
| Crosswise No bending |
≥20 | ≥25 | ||||||||||||
| 7 | Breakdown voltage |
No bending | kV | ≥6.0 | ≥7.0 | ≥8.0 | ≥11.0 | ≥12.0 | ≥14.0 | ≥16.0 | ≥19.0 | ≥23.0 | ≥25.0 | ≥28.0 |
| After bending | ≥5.0 | ≥6.0 | ≥7.0 | ≥9.0 | ≥10.0 | ≥12.0 | ≥14.0 | ≥15.0 | ≥18.0 | ≥19.0 | ≥20.0 | |||
| 8 | delamination | - | no delamination, no blister, no gummosis | |||||||||||
| 9 | (180±2ºC,10min) Heat affected |
- | no delamination, no blister, no gummosis | |||||||||||
| 10 | stiffness | N | undetermined | |||||||||||
| 11 | (TI) Long-term heat-resistance (Temperature exponentTI) |
- | ≥155 | |||||||||||
2 GB/T5591.3-2018 6640(80μm)(NMN,YMY)
Sheet 2, 6440, requirements of P-PAa/F-PET/P-PAa soft composite material (PET thin film double side compound 80µm
calendering aromatic polyamide paper (GB/T5591.3-2018)(3 layers,NMN,YMY)
Product consultation
Online search
Try to provide customers with perfect products and services.
Jiangxi Tengde Industrial Co., Ltd.
Tel：086-794-7888226
Fax：086-794-7881095
mobile phone：18679404688
E-mail：2061631242@qq.com
Address: No. 222 Anshi Avenue, Fuzhou high tech Industrial Park, Jiangxi Province
Official official account
0794-7888226
E-mail 
Copyright © Jiangxi Tengde Industrial Co., Ltd. All Rights Reserved 赣ICP备15002964号 Powered by www.300.cn SEO