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High-performance electromagnetic shielding materials can effectively protect against the increasingly prominent electromagnetic interference and damage, in order to overcome the shortcomings of traditional rigid electromagnetic shielding materials such as poor flexibility and controllability in practical applications, a flexible, mouldable and conductive silver nanosheets composite hydrogel shielding material was developed, and its three-dimensional structure and effective component composition were determined by scanning electron microscope (SEM) , X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) . A vector network analyser was further used to confirm the excellent electromagnetic shielding performance of the hydrogel in the frequency band of 8.0～12.4GHz (consistently stabilized above 35dB). Based on the controllable water content of the hydrogel, a dehydration-induced spatial interconnection of silver nanolayers to form a macroscopic conductive pathway is designed and proposed, which greatly improves the electrical conductivity of the composite hydrogel and thus achieves a high level of electromagnetic shielding, and to a certain extent, provides a practical and effective solution for the controllable design and preparation of high-performance electromagnetic shielding materials.
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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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