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To improve the safety of EP in application fields, Calcium Terephthalate(CaT), a metal-organic framework (MOF) material, was utilized synergistically with the liquid flame retardant bisphenol A bis (diphenyl phosphate) (BDP) to flame-retardant modify the EP/PPO system. The flame retardant properties were characterized using the limiting oxygen index, vertical burning test, and cone calorimeter tests. The curing kinetics and pyrolysis kinetics of the modified EP/PPO system were investigated using the Kissinger, FWO (Flynn-Wall-Ozawa), and Crane equations. The results show that when 8% BDP and 2% CaT are added to EP, the composite exhibits good flame retardant performance. 34.5% of the limiting oxygen index is reached. V-0 rating of the vertical burning test is achieved. The peak heat release rate and the total heat release are reduced by 76.6% and 51.5% respectively compared to pure EP. The incorporation of CaT is found to be beneficial for the curing reaction. The optimal curing temperature could be determined by extrapolation from non-isothermal differential scanning calorimetry curves. It is an initial stage at 100 ℃, followed by 120 ℃, and finally 170 ℃. Analysis of non-isothermal thermogravimetric analysis curves and pyrolysis kinetics demonstrates that EP/PPO system exhibits lower activation energy.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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