| abstract |
The invention relates to the technical field of electromagnetic shielding composite materials, and provides a preparation method of ANFs/MXene composite electromagnetic shielding aerogel. The Kevlar29 fiber selected in the present invention has a specific aspect ratio and strength, and under the combined action of alkali metal hydroxide and polar solvent, the Kevlar29 fiber is peeled off into ANFs colloid; the strict control of moisture in the process of preparing ANFs colloid, the maximum The surface active groups of the ANFs after exfoliation are enriched to a certain extent, and the mechanical properties and electromagnetic wave absorption properties of the aerogel are improved. The compressive resilience performance of the aerogel is improved, and its oriented structure makes the MXene conductive phase orientated, which improves the electrical conductivity of the aerogel. The rigid skeleton of the highly oriented ANFs aerogel can withstand greater external forces. |