Ti3C2Tx MXene负载玻璃纤维材料制备与电磁屏蔽性能  

Preparation and Electromagnetic Shielding Properties of Ti3C2Tx MXene/Glass Fiber Composites

作　　者：秦文峰[1] 符佳伟 刘国春[2] 王新远 李亚云 范宇航 Qin Wenfeng;Fu Jiawei;Liu Guochun;Wang Xinyuan;Li Yayun;Fan Yuhang(Civil Aviation Flight University of China,Guanghan 618307,China)

机构地区：[1]中国民用航空飞行学院航空工程学院,四川广汉618307 [2]中国民用航空飞行学院,四川广汉618307

出　　处：《稀有金属材料与工程》2020年第11期3896-3901,共6页Rare Metal Materials and Engineering

基　　金：四川省教育厅项目(18ZB0686);民航局教育人才类项目(14002600100017J170)。

摘　　要：采用多巴胺对玻璃纤维织物改性处理和原位生成Ti3C2Tx MXene,通过真空抽滤法制备了Ti3C2Tx负载玻璃纤维复合材料,研究了Ti3C2Tx负载量对电磁屏蔽的影响。结果显示:刻蚀之后Ti3C2Tx的(002)衍射峰从2θ=9.5°移动到2θ=6.1°,Ti3AlC2的(104)衍射峰消失不见,表明Ti3C2Tx刻蚀成功。SEM结果表明,成功地将Ti3C2Tx纳米片附着在玻璃纤维表面,改善了玻璃纤维的导电网络。由于Ti3C2Tx高导电性和表面的-OH官能团,电磁波和其发生欧姆损耗和偶极损耗,从而降低电磁波能量,达到电磁屏蔽效果。在2~18 GHz频率范围内,Ti3C2Tx负载量为2.55 mg/cm2的MGF-4的最大电磁屏蔽效果为55.1 dB,其表面电阻为0.95?/sq。The Ti3C2Tx MXene was successfully etched via situ HF method.Glass fiber was modified with dopamine.The Ti3C2Tx/Glass fiber composites were prepared by the vacuum filtration,the EMI SE of the samples with different Ti3C2Tx loadings was studied.The results show that the peak at 002 is moved from 2θ=9.5°to 2θ=6.1°,and peak at 104 of Ti3AlC2 disappears after etching by in-situ HF method.The Ti3C2Tx is successful obtained.SEM image indicates that the Ti3C2Tx nanosheets are successfully attached to the surface of the glass fiber,which improve the conductive network of the glass fiber.Electromagnetic wave energy and Ti3C2Tx loaded glass fiber possess electromagnetic shielding effect,due to the high conductivity of Ti3C2Tx and a large amount of electrons on the surface,which induces that contribute to ohmic losses with electromagnetic waves.The maximal electromagnetic shielding effectiveness of the Ti3C2Tx loading of 2.55 mg/cm2 is 55.1 dB in the frequency range of 2~18 GHz,and the surface resistance is 0.95Ω/sq.

关 键 词：玻璃纤维 Ti3C2Tx MXene 电磁屏蔽 

分 类 号：TG113.224[金属学及工艺—物理冶金]