摘要
根据葡萄糖辅助的离子吸附-还原炭化策略,以聚丙烯腈(PAN)纤维毡为炭前驱体,制备CF/Fe_(3)O_(4)复合吸波材料。通过调控葡萄糖与金属离子配位比例及炭化温度,优化Fe_(3)O_(4)粒径分布和负载密度,实现介电损耗与磁损耗协同作用,显著提升吸波性能。结果表明,制备得到的CF/Fe_(3)O_(4)磁性复合材料在厚度2.5 mm时最强吸收峰位于10.63 GHz处,最大反射损耗(RL)值为-28.60 dB,最大吸收带宽为4.14 GHz。该研究为开发高效率、宽频带、轻质化磁性吸波材料提供了新方法,也为炭纤维/磁性纳米颗粒复合体系设计提供了理论依据。
A glucose-assisted ion adsorption-reduction carbonization strategy is adopted to prepare CF/Fe_(3)O_(4)composite wave-absorbing materials using polyacrylonitrile(PAN)fiber felt as the carbon precursor.By optimizing the coordination ratio of glucose to metal ions as well as the carbonization temperature,the particle size distribution and loading density of Fe_(3)O_(4)are precisely controlled,achieving a synergistic effect between dielectric loss and magnetic loss,thereby significantly enhancing the wave-absorbing performance.The results demonstrate that the as-prepared CF/Fe_(3)O_(4)magnetic composite exhibits a strong absorption peak at 10.63 GHz with a maximum reflection loss(RL)of-28.60 dB and an effective absorption bandwidth of 4.14 GHz with a thickness of 2.5 mm.This work provides a novel approach for developing high-efficiency,broadband,and lightweight magnetic wave-absorbing materials,while also offering theoretical insights into the design of carbon fiber/magnetic nanoparticle composite systems.
作者
谈宜笑
顾闻彦
张广宇
杨棹航
TAN Yixiao;GU Wenyan;ZHANG Guangyu;YANG Zhaohang(School of Textile and Clothing,Nantong University,Nantong,Jiangsu 226019,China)
出处
《印染》
北大核心
2025年第9期35-38,42,共5页
China Dyeing and Finishing
基金
南通市自然科学基金(JC2023015)
江苏省高等教育(23KJA540001)。
作者简介
谈宜笑(2000-),女,硕士研究生,研究方向为吸波材料;通信作者:杨棹航,E-mail:yang_zh@ntu.edu.cn。
