To fully dig the enormous potential of carbide slag and corn cob in resource utilization, thus to meet the demands of colid waste recycling and low-carbon energy storage.
A novel composite phasechange thermal energy storage material was prepared using industrial solid waste carbide slag and agricultural solid waste carbonized corn fiber as the binary skeleton material, and with paraffin as the phase-change medium. The composites were synthesized via vacuum impregnation, and process parameters were optimized.
The results showed that the material exhibited optimal encapsulation performance at a carbide slag-to-carbonized corn fiber mass ratio of 5:5, maintaining structural stability after 600 thermal cycles. The optimal sample SC-5 achieved melting and solidification latent heats of 34.90 and 36.35 J/g, respectively, with a thermal conductivity of 0.484 W/(m·K), indicating good thermal stability and chemical compatibility. Microstructural analysis revealed that the skeleton materials formed a dense microporous structure, effectively mitigating paraffin leakage. Post-cycling material analysis indicated no new chemical bonds and maintained elemental homogeneity.
This work provides a novel pathway for synergistic valorization of industrial and agricultural solid wastes, demonstrating significant application potential in building energy conservation, industrial waste heat recovery, and thermal management of electronics.
| 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 |