通过环保的现场施工,增强细菌纤维素/减少氧化石墨烯气凝的电磁波吸收
Yu Zhang1, Jun Wang1, Qilei Wu2
1Key Laboratory of Functional Nanocomposites of Shanxi Province, School of Materials Science and Engineering, North University of China, Taiyuan 030051, China.
Journal of colloid and interface science
|August 31, 2024
概括
研究人员开发了轻量级的细菌纤维素/减少氧化石墨烯气凝,用于吸收电磁波. 这些材料提供了卓越的性能,减少了雷达横截面,并为先进的隐形技术应用提供了热绝缘.
科学领域:
- 材料科学 材料科学 材料科学
- 纳米技术纳米技术
- 电磁学 电磁学 电磁学 电磁学
背景情况:
- 电磁波吸收材料 (EWAM) 对于管理电磁辐射和推进隐形技术至关重要.
- 气凝,特别是基于细菌纤维素 (BC) 和减少氧化石墨烯 (RGO) 的气凝,具有独特的优势,如低密度和可调性特性.
研究的目的:
- 制造环保的细菌纤维素/减少氧化石墨烯 (BC/RGO) 气凝.
- 通过控制 Askorbic 酸的减少时间来定制电磁波损失能力.
- 评估这些气凝作为先进的EWAM的性能.
主要方法:
- 使用环保的制备和现场减少技术.
- 采用冷造,BC绕和结合,以保持结构完整.
- 控制阿斯科布酸减少时间调整RGO属性.
主要成果:
- 实现了优异的电磁波吸收,最小反射损失 (RLmin) 为-38.52dB.
- 获得了6.68 GHz的有效吸收带宽 (EAB) 和 44.69 dBsm的最大雷达截面 (RCS) 减小.
- 展示了9.03mg/cm3的低密度和出色的绝热性能.
结论:
- 开发的BC/RGO气凝具有卓越的EM波吸收和结构稳定性.
- 这些材料为工业化基于RGO的EWAM提供了一种新的,可持续的方法.
- 它们的轻量级和绝缘性能使得它们适合复杂的环境条件.
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