6640 NMN 0881 是一种柔软复合材料，由聚酯薄膜涂以胶粘剂，两面轧光聚酰胺芳香纤维纸Nomex而成的三层绝缘纸。绝缘等级属F级155℃；其良好机械韧性和聚酯薄膜良好的介电强度，广泛适用电气设备，尤其适用于电机的槽间、相间、匝间和衬垫绝缘；
-符合UL认证-耐温等级高(155-180度)
-绿色环保-厚度范围:0.13mm-0.47mm
-厚度均匀,公差小-优良加工性能，折弯不分层断裂
-易成型，用于电机，变压器主绝缘
主要性能指标
标称厚度mm | NMN0.14 | NMN 0.16 | NMN 0.18 | NMN 0.20 | NMN 0.24 | NMN 0.30 | NMN 0.35 | NMN 0.40 | NMN 0.47 | |
组 成 | 2-1-2 | 2-2-2 | 2-3-2 | 2-4-2 | 2-5-2 | 2-7.5-2 | 2-10-2 | 2-12-2 | 2-14-2 | |
拉伸强度N/10mm | 纵向 | 131.3 | 170.5 | 201.9 | 234.5 | 273.1 | 335.1 | 403.1 | 454.0 | 476.9 |
横向 | 94.1 | 143.1 | 170.5 | 210.4 | 214.3 | 332.5 | 407.2 | 403.1 | 493.9 | |
延伸率% | 纵向 | 25.95 | 28.38 | 31.54 | 25.87 | 34.19 | 50.9 | 49.04 | 53.86 | 51.82 |
横向 | 35.88 | 42.89 | 52.6 | 40.31 | 46.12 | 81.2 | 63.92 | 73.56 | 87.51 | |
标称厚度mm |
| 0.14 | 0.16 | 0.17 | 0.2 | 0.24 | 0.25 | 0.31 | 0.37 | 0.47 |
介电强度kv |
| 9.7 | 12.3 | 12.8 | 14.8 | 15.6 | 17.3 | 18.2 | 22.3 | 24.2 |
Polyaromatic Amide Fiber Paper(abbr.: aramide paper)& Polyester Film Compositesare a family of 2,3-ply laminates of NOMEXTM paper bonded toone or bothsides of polyester film. It has not only the excellent dielectric and mechanical strength of film’s,but the better tear resistance and excellentabsorption tovarnishof paper’s,so it is a reliable class-F insulation material for electrical machines.
Note: NOMEX paper is commodity name of Dupont’s aramide paper
Characters:*Excellent dielectric and good mechanical strength. *Good heat resistance, can work for a long term under 155℃for F, H-class insulation. *Better flexibility and very good applicability in slot insulation *Low dielectric dissipation, can work in harsh conditions.
Spec.:
Type
| NMN-222 | NMN-232 | NMN-252 | NMN-272 | NMN-2(10)2 | NMN-2(14)2 | NMN-3(14)3 |
Normal Thickness mm | 0.17 | 0.20 | 0.25 | 0.30 | 0.35 | 0.45 | 0.52 |
Basisweightg/m2±10% | 180 | 210 | 290 | 360 | 470 | 610 | 650 |
NOMEX mm | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.05 | 0.08 |
Polyester Film mm | 0.05 | 0.075 | 0.125 | 0.175 | 0.25 | 0.35 | 0.35 |
Supply size | Supplied in rolls, core diameter: 76mm(Ф3”), width: 914mm | ||||||
*Customization is also available
Typical Properties
Property items | Test methods | Units | Typical Value | ||||||
NMN-222 | NMN-232 | NMN-252 | NMN-272 | NMN-2(10)2 | NMN-2(14)2 | NMN-3(14)3 | |||
1. Visual | The surface should be even and free from wrinkle, blister, adhesive particle and impurity. | ||||||||
2.Dielectric strength | A | kV | ≥10 | ≥11 | ≥13 | ≥15 | ≥20 | ≥25 | ≥25 |
| After Bending | kV | ≥8 | ≥9 | ≥12 | ≥13 | ≥18 | ≥23 | ≥23 |
3. Tensile strength | Machine direction | N/cm | ≥160 | ≥180 | ≥220 | ≥270 | ≥320 | ≥350 | ≥320 |
MD. after bending | N/cm | ≥110 | ≥130 | ≥180 | ≥200 | ≥280 | ≥280 | ≥280 | |
Cross direction | N/cm | ≥110 | ≥130 | ≥180 | ≥200 | ≥250 | ≥280 | ≥250 | |
CD. after bending | N/cm | ≥90 | ≥110 | ≥150 | ≥170 | ≥200 | ≥200 | ≥200 | |
4.Breakdown strength | Machine direction | % | ≥10 | ≥12 | ≥12 | ≥12 | ≥12 | ≥12 | ≥12 |
Cross direction | % | ≥15 | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 | ≥18 | |
5. Adhesion | A |
| No delamination. | ||||||
180±2℃/10min |
| No delamination, no bladder,no gel | |||||||
Storage:The product is packed in reinforced carton and sealed in plastic film bag, and keep dry and in room temperature, fire and dampness proofing.Shelf life :12 months.
Applications: Polyaromatic Amide Fiber Paper & Polyester Film Compositeis used not only in slot insulation for motors and generators, also for interval, layer andground insulation in dry-type transformers.
