Unique Flame Retardant
The limiting Oxygen Index of Veenice polyimide is 38%, it belongs to a flame retardant material. The fiber do not droplet flame and will extinguish when leaving the fire, can effectively prevent the spread of fire meanwhile non-toxic, suitable for making fire service and textile usage for homes, schools, hospitals, hotels and etc.
Our test: Normal mattress (left) and polyimide mattress (right)
Result: four minutes after set on fire, ordinary mattress burned down. Polyimide mattress after 30 minutes set on fire with poured gasoline, inside still intact, just the surface gasoline got carbonization
As shown in figure：
Here under is our test report:
| Inflame retarding | Unit | polyimide | Aramid | Other POLYMID |
| Fineness | dtex | 2.2,1.67,0.89 | 2.2 | 2.2 |
| Strength | cN/dTex | >4.0 | >4.0 | >3.8 |
| Vitrification point | ℃ | no evident vitrification point |
270 | 315 |
| Thermal decomposition temperature | ℃ | 573(T 5%) |
352(T 5%) | 485(T 5%) |
| Dry-hot shrinkage | % | <0.3% 280°C,30min |
<1% 250°C,30min |
<3% 240°C,30min |
| LOI | 38 |
29 | 38 |