The results of the LOI and UL-94 vertical burning test of EP compositesa.
| Samples | LOI (%) | UL-94 | ||||
|---|---|---|---|---|---|---|
| t 1 | t 2 | t 1 + t2 | Rating | Melt dropping | ||
| Pure EP | 23.5 | 109 | 70 | 179 | NR | Yes |
| EP/7MFAPP | 27.0 | 31 | 4 | 35 | NR | No |
| EP/7NiPS | 24.5 | 82 | 20 | 102 | NR | No |
| EP/6MFAPP/1NiPS | 27.3 | 29 | 3 | 32 | V-1 | No |
| EP/5MFAPP/2NiPS | 27.5 | 23 | 2 | 25 | V-1 | No |
| EP/4MFAPP/3NiPS | 26.4 | 34 | 4 | 38 | NR | No |
| EP/5.7MFAPP/2.3NiPS | 28.2 | 8 | 1 | 9 | V-0 | No |
NR mean does not meet any combustion rating.