柔性吸波纺织复合材料的制备及其性能

doi:10.19398/j.att.202103040

现代纺织技术 ›› 2022, Vol. 30 ›› Issue (2): 68-74.DOI: 10.19398/j.att.202103040

柔性吸波纺织复合材料的制备及其性能

杲爽¹, 蔡菲¹, 倪庆清¹, 傅雅琴¹^,²()

1.浙江理工大学材料科学与工程学院,杭州 310018
2.浙江理工大学桐乡研究院,浙江桐乡 314500

收稿日期:2021-03-26 出版日期:2022-03-10 网络出版日期:2021-07-08
通讯作者: 傅雅琴,E-mail: fyq01@zstu.edu.cn
作者简介:杲爽(1994-),女,江苏淮安人,硕士研究生,主要从事吸波纺织材料方面的研究。
基金资助:
国家自然科学基金项目(52073259);国家自然科学基金项目(U20A20264)

Preparation and properties of flexible microwave absorbing composite textile

GAO Shuang¹, CAI Fei¹, NI Qingqing¹, FU Yaqin¹^,²()

1. School of Materials Science & Engineering, Zhejiang Sci-Tech University, Hangzhou 310018, China
2. Zhejiang Sci-Tech University Tongxiang Research Institute, Tongxiang 314500, China

Received:2021-03-26 Published:2022-03-10 Online:2021-07-08

摘要/Abstract

摘要：

选用三维正交织物作为基布,以聚氨酯为黏合剂将炭黑复合在基布上制备柔性可折叠吸波纺织复合材料。通过扫描电子显微镜、傅立叶红外光谱、硬挺度仪、矢量网络分析仪与拱形框连接对复合材料的微观形貌、结构、柔性和吸波性能进行分析。结果表明:当浸渍溶液中炭黑质量分数为15%,复合材料的弯曲高度为10cm,显示出良好的柔韧性;测试角度为0°时,材料的有效吸波频宽(EAB)可覆盖整个X波段;测试角度为30°时,在10.64 GHz得到了最小反射损耗(RL_min)-41.33 dB,显示添加适量的炭黑,可以有效提高复合材料的吸波性能。

关键词: 吸波材料, 三维织物, 炭黑, 浸渍, 柔性, 吸波性能

Abstract:

In order to prepare a flexible foldable microwave absorbing composite textile, this paper selects three-dimensional orthogonal fabric as the substrate and polyurethane as the binder to compound carbon black onto the substrate. The microscopic morphology, structure, flexibility and microwave absorbing properties of the composites are analyzed, through scanning electron microscopy, Fourier transform infrared spectroscopy, stiffness tester, vector network analyzer and arched frame connection,. The results show that when the mass fraction of carbon black in the impregnation solution is 15%, and the bending height of the composites is 10cm, the composite exhibits good flexibility; the effective absorption bandwidth (EAB) of the material can cover the entire X band when the test angle is 0°. A minimum reflection loss (RL_min) of -41.33 dB is obtained at 10.64 GHz when the test angle is 30°. This suggests that adding a proper amount of carbon black can effectively improve the microwave absorbing properties of the composites.

Key words: microwave absorbing material, 3D fabric, carbon black, impregnation, flexible, microwave absorbing properties

中图分类号:

TB332

杲爽, 蔡菲, 倪庆清, 傅雅琴. 柔性吸波纺织复合材料的制备及其性能[J]. 现代纺织技术, 2022, 30(2): 68-74.

GAO Shuang, CAI Fei, NI Qingqing, FU Yaqin. Preparation and properties of flexible microwave absorbing composite textile[J]. Advanced Textile Technology, 2022, 30(2): 68-74.

图/表 8

图1 改装后的织机

Fig.1 Modified loom

图2 三维正交织物

Fig.2 3D orthogonal fabric

图3 硬挺度测试示意

Fig.3 Stiffness test diagram

图4 材料的SEM图

Fig.4 SEM diagramof the material

图5 材料的红外光谱图

Fig.5 Infrared spectra chart of the material

图6 F及FPC柔性展示

Fig.6 F and FPC flexible display

表1 F及FPC的弯曲高度

Tab.1 Bending heights of F and FPC

试样	弯曲高度h/cm
F	11.2
FP	8.5
FPC-1	9.0
FPC-2	9.4
FPC-3	10.0
FPC-4	9.0

图7 复合材料在不同测试角度下的吸波图

Fig.7 Microwave absorption diagramof composite materials at different test angles

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柔性吸波纺织复合材料的制备及其性能

Preparation and properties of flexible microwave absorbing composite textile

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