The invention discloses a heat preservation metamaterial wave-absorbing honeycomb core and a preparation method and application thereof, and relates to the technical field of materials. Comprising the following steps: mixing graphene modified and coated flaky carbonyl iron powder with epoxy resin to obtain dispersed particles with periodic units and consistent directivity under the action of an electric field and a magnetic field, and taking the dispersed particles as a wave-absorbing coating; according to the periodic unit wave-absorbing coating, a spraying mold is designed; coating the spraying mold with a release agent, pressing the spraying mold on the aramid paper, and spraying by using a wave-absorbing coating to obtain the wave-absorbing metamaterial aramid paper; the aramid paper is pasted together layer by layer, and after the aramid paper is firmly bonded, the aramid paper is stretched into the metamaterial wave-absorbing aramid honeycomb core and cut into the corresponding thickness; and putting the sliced metamaterial wave-absorbing aramid fiber honeycomb core into a foaming mold, and foaming to obtain the heat-insulating metamaterial wave-absorbing honeycomb core. The thermal insulation honeycomb can be loaded to reduce the temperature change in the cabin, normal work of the battery is ensured, power shortage is reduced, and the aircraft voyage is ensured.
本发明公开了一种保温超材料吸波蜂窝芯及其制备方法和应用,涉及材料技术领域。包括如下步骤:将石墨烯改性包覆的片状化羰基铁粉与环氧树脂混合,在电场和磁场的作用下,得到具有周期性单元且指向性一致的分散颗粒,作为吸波涂料;根据周期性单元吸波涂料,设计喷涂模具;将喷涂模具涂抹好脱模剂后压在芳纶纸上,利用吸波涂料进行喷涂,得到吸波超材料芳纶纸;将芳纶纸逐层贴敷在一起,待粘接牢固后,再拉伸成为超材料吸波芳纶蜂窝芯,并切割成对应的厚度;将片切好的超材料吸波芳纶蜂窝芯放入发泡模具中,发泡,即得到保温超材料吸波蜂窝芯。本发明能加载保温蜂窝降低舱内温度变化,保证电池正常工作,减少亏电,保证飞机航程。
Heat preservation metamaterial wave-absorbing honeycomb core and preparation method and application thereof
一种保温超材料吸波蜂窝芯及其制备方法和应用
2024-02-02
Patent
Electronic Resource
Chinese
IPC: | B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE , Herstellen besonderer Gegenstände aus Kunststoff oder aus Stoffen in plastischem Zustand / B64C AEROPLANES , Flugzeuge / C08J Verarbeitung , WORKING-UP / C08L COMPOSITIONS OF MACROMOLECULAR COMPOUNDS , Massen auf Basis makromolekularer Verbindungen |
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