Table 1.
Limit oxygen index (LOI) and UL-94 data of epoxy thermosets at different formulation ratios. Readapted with permission from Ref. [59], Copyright 2015, American Chemical Society.
| Sample | E51 (wt.%) |
PA650 (wt.%) |
MAPP (wt.%) | Cu2O (wt.%) | UL-94 | LOI (%) |
|---|---|---|---|---|---|---|
| Neat EP | 55.56 | 44.44 | NR | 19.0 | ||
| EP/20%MAPP | 44.44 | 35.56 | 20.00 | NR | 31.0 | |
| EP/20%Cu2O | 44.44 | 35.56 | 20.00 | NR | 21.5 | |
| EP/16%MAPP/4%Cu2O | 44.44 | 35.56 | 16.00 | 4.00 | V-0 | 33.5 |
| EP/18%MAPP/2%Cu2O | 44.44 | 35.56 | 18.00 | 2.00 | V-0 | 35.0 |
| EP/18.67%MAPP/1.33%Cu2O | 44.44 | 35.56 | 18.67 | 1.33 | V-0 | 33.5 |
| EP/19%MAPP/1%Cu2O | 44.44 | 35.56 | 19.00 | 1.00 | V-0 | 32.5 |
| EP/13.5%MAPP/1.5%Cu2O | 47.22 | 37.78 | 13.50 | 1.50 | V-0 | 30.0 |
| EP/9%MAPP/1%Cu2O | 50.00 | 40.00 | 9.00 | 1.00 | V-0 | 28.0 |
| EP/8.1%MAPP/0.9%Cu2O | 50.56 | 40.44 | 8.10 | 0.90 | V-1 | 24.5 |
NR means no rating.