Nomex is a kind of synthetic aromatic amide polymer, which has the following excellent characteristics:
1. Inherent dielectric strength
Insulation paper supplier: Nomex with calendering treatment; the product can withstand short-time voltage field strength of 18-40kvmm, without further treatment with varnish and resin;
Due to the low dielectric constant of Nomex products, the electric field distribution between insulation and cooling medium is more uniform;
2. Mechanical toughness
After calendering, Nomex products have high strength, good elasticity, tear resistance and wear resistance, while thinner products have flexibility;
3. Thermal stability
Nomex products have UL material temperature class 220 ° C approval, which means that even if continuously placed at 220 ° C, it can maintain effective performance for more than 10 years;
4. Chemical compatibility
Nomex is not affected by most solvents and is very acid and alkali resistant. It is compatible with all varnishes, adhesives, transformer fluids, lubricants and coolants. In addition, Nomex [1] will not be damaged by insects, fungi and molds.
5. Low temperature performance
Insulation paper supplier: under the boiling point of nitrogen (77K), Nomex [1]; the tensile strength of t410 insulating paper and nomex993994 laminate exceeds the strength value at room temperature;
6. Insensitive to moisture
The dielectric strength of Nomex is 90% of that in the dry state when the relative humidity is 95%. At the same time, many mechanical properties are improved;
7. Radiation resistance
Even if the intensity of ionizing radiation reaches 800 megarad (8 mGy), Nomex products are basically unaffected, and they still have mechanical and electrical properties after 8 doses of radiation;
8. Non toxic and flame resistant
Nomex products do not produce any known toxic reactions to humans or animals. Nomex products do not melt in air and do not support combustion. Moreover, the LOI is greater than 20.8 at 220 ° C, so it will not burn. Nomex products meet the flame resistance requirements of UL94V-0, enhance the transformer function and improve the motor life and reliability