Nomex® Meta-Aramid: Heat & Flame Resistant
Key Features of Nomex® Meta-Aramid:
- Excellent heat & flame resistance
- High chemical resistance
- Low thermal shrinkage
- Self-extinguishing flame retardant properties
- Soft-hand yields good textile properties
History
Originally called HT-1, Nomex® was first developed in the 1960’s and made commercially available in 1967 by DuPont™. It was first used as fabric for race-car driver suits.
Composition
Similar to Kevlar®, Nomex® is an aromatic polyamide. The “Meta” linkage position of the aromatic groups differs from that of Para-Aramids. The chemical bonds are zig-zag in configuration, resulting in a lower tensile and modulus fiber compared to Kevlar®.
Nomex® is flexible and higher in elongation however, making it an ideal textile yarn for fabrics.
FIBER-LINE® Enhancing Processes for Nomex®:
FIBER-LINE® Nomex® Products:
Manufacturer
DuPont™
Common Types & Deniers
T-430: Filament Yarn
Deniers: 200, 1200, 1600, 2400
Nomex® Meta-Aramid Bare Fiber Performance
CHEMICAL COMPATIBILITY
Chemical Resistance to Acid: Strength loss in H2SO4 below acid dew point.
Chemical Resistance to Alkali: Good at room temperature but degraded by strong alkalis at high temp.
Nomex® Meta-Aramid Data
Standard Modulus
| Property | UOM | Value |
|---|---|---|
| Breaking Tenacity | g/d | 5.0 |
| Specific Gravity | Ratio | 1.38 |
| Elongation @ Break | % | 30.0 |
| Tensile Modules | g/d | 125 |
| Moisture Regain* | % | 4.5 |
| Shrinkage*** | % | .4 |
| Melt Point | ℃ | N/A |
* Equilibrium moisture regain @ 55% RH ** Creep @ 40%-58% ultimate tensile strength *** Shrinkage in dry air @ 177 C for 30 minutes
This data is provided for informational purposes only, and does not constitute a specification. FIBER-LINE makes no warranty, express or implied, that the product conforms to these values. Contact your FIBER-LINE representative for exact product details which conform to your specific requirements.