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To investigate the effects of different accelerators and their dosage on the pre-curing and cured properties of epoxy resin/anhydride systems (EP/MTHPA), this study employed three accelerators—DMP-30, N,N-dimethylaniline, and N,N-dimethylbenzylamine—to prepare EP/MTHPA cured products at different curing agent dosages. The pre-curing behavior of the resin system and the mechanical properties, thermal stability, and electrical properties of the cured materials were studied. The results show that when the accelerator dosage is 0.75 g, the viscosity variation of the resin system is more suitable for production process control. Among them, the EP/MTHPA/DMP-30 system exhibits excellent comprehensive performance, with the lowest polymerization activation energy of 74.58 kJ/mol, a heat deflection temperature reaching 123.40℃, a flexural modulus, flexural strength, and impact strength of 123.6 MPa, 2.9 GPa, and 14.8 kJ/m2, respectively, and a volume resistivity of 9.6×10¹⁶ Ω·cm.
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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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