纺织学报 ›› 2019, Vol. 40 ›› Issue (8): 109-116.doi: 10.13475/j.fzxb.20180504908

• 染整与化学品 • 上一篇    下一篇

氧化石墨烯/聚苯胺功能膜对棉织物电磁屏蔽性能的影响

邹梨花1(), 徐珍珍1, 孙妍妍1, 王太冉1, 邱夷平2   

  1. 1.安徽工程大学 安徽省纺织结构复合材料国际科技合作研究中心, 安徽 芜湖 241000
    2.东华大学 纺织学院, 上海 201620
  • 收稿日期:2018-05-21 修回日期:2019-05-03 出版日期:2019-08-15 发布日期:2019-08-16
  • 作者简介:邹梨花(1987—),女,讲师,博士。主要研究方向为纺织品的功能整理。E-mail: gazoulihua@163.com。
  • 基金资助:
    2017安徽省对外科技合作项目(1704e1002213);安徽省高等学校纺织面料重点实验室、安徽省纺织工程技术研究中心开放基金项目(2018AKLTF08);2017年省高等教育提升计划自然科学研究一般项目(TSKJ2017B01);安徽工程大学引进人才科研启动基金项目(2016YQQ005)

Influence of graphene oxide/polyaniline functional film on electromagnetic shielding property of cotton fabrics

ZOU Lihua1(), XU Zhenzhen1, SUN Yanyan1, WANG Tairan1, QIU Yiping2   

  1. 1. International Cooperation Research Center of Textile Structure Composite Materials, Anhui Polytechnic University,Wuhu, Anhui 241000, China
    2. College of Textiles, Donghua University, Shanghai 201620, China
  • Received:2018-05-21 Revised:2019-05-03 Online:2019-08-15 Published:2019-08-16

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摘要：

为制备轻质高效的吸波型电磁屏蔽织物,采用层层组装方法在棉织物表面涂层氧化石墨烯/聚苯胺(GO/PANI)电磁屏蔽功能膜。研究苯胺单体浓度、氧化石墨烯质量浓度、组装层数对整理棉织物电性能及电磁屏蔽性能的影响,并分析了屏蔽电磁能的吸收率、反射率以及吸收屏蔽效能和反射屏蔽效能。结果表明:苯胺单体浓度和组装层数的增加有利于提高棉织物的电磁屏蔽效能,而随着氧化石墨烯质量浓度的增加,织物的电磁屏蔽效能先增加后减小;组装4层GO/PANI功能膜后棉织物的屏蔽效能达到19.91 dB,可屏蔽98.98%的电磁能,其吸收率达到57.63%,而反射率为41.35%,主要屏蔽机制是吸收。

关键词: 聚苯胺, 氧化石墨烯, 层层组装, 棉织物, 电磁屏蔽性能, 功能膜

Abstract:

In order to prepare lightweight and efficient electromagnetic shielding fabric of absorption-type, a graphene oxide (GO)/polyaniline (PANI) functional film was coated on cotton fabric using layer-by-layer assembling method. The influences of the concentration of aniline (AN) monomer, the concentration of GO and the number of assembly layers on the electrical properties and electromagnetic shielding properties of cotton fabrics were studied. The absorptivity, reflectivity, and shielding effectiveness due to absorption and reflection were analyzed. The results show that the increase of AN concentration and the number of assembling bilayer improve the electromagnetic shielding effectiveness of the fabric, but with the increase of GO concentration, the shielding effectiveness value of the fabric increases first and then decreases, the shielding effectiveness of fabric with 4 bilayers of GO/PANI reaches 19.91 dB, which could shield 98.98% of electromagnetic energy, the absorptivity of the fabric is 57.63%, and the reflectivity is 41.35%, the main shielding mechanism is absorption.

Key words: polyaniline, graphene oxide, layer-by-layer assembly, cotton fabric, electromagnetic shielding property, functional film

中图分类号: 

  • TS101.8

图1

棉、PANI涂层棉及GO/PANI涂层棉织物的红外光谱"

图2

不同AN单体浓度、GO质量浓度和组装层数时GO/PANI涂层棉纤维前后的扫描电镜照片(×5 000)"

表1

苯胺浓度对氧化石墨烯/聚苯胺组装棉织物上载量、厚度及表面电阻的影响"

AN浓度/
(mol·L-1)		 上载量/
(mg·cm-2)		 厚度/
mm		 表面电阻/
(Ω·□-1)
0.3 1.67±0.09 0.439±0.023 1 237.5±92.3
0.5 2.94±0.08 0.457±0.029 414.7±23.7
0.7 3.81±0.13 0.478±0.031 310.4±18.5
0.9 4.06±0.16 0.513±0.038 197.9±11.3

表2

氧化石墨烯质量浓度对涂层棉织物上载量、厚度及表面电阻的影响"

GO质量浓
度/(g·L-1)		 上载量/
(mg·cm-2)		 厚度/
mm		 表面电阻/
(Ω·□-1)
0.2 0.87±0.09 0.437±0.021 356.8±19.8
0.4 2.19±0.08 0.461±0.028 216.7±13.7
0.6 3.81±0.13 0.478±0.031 310.4±18.5
0.8 4.36±0.16 0.496±0.035 874.5±45.9

表3

氧化石墨烯/聚苯胺组装层数对棉织物上载量、厚度及表面电阻的影响"

组装
层数		 上载量/
(mg·cm-2)		 厚度/
mm		 表面电阻/
(Ω·□-1)
1 2.19±0.08 0.461±0.028 216.7±13.7
2 4.44±0.11 0.506±0.051 175.9±9.1
3 6.56±0.17 0.558±0.059 115.3±7.6
4 8.77±0.21 0.607±0.053 66.1±4.8

图3

AN浓度与GO/PANI涂层棉织物电磁屏蔽性能的关系"

图4

GO质量浓度与GO/PANI涂层棉织物电磁屏蔽性能的关系"

图5

组装层数与GO/PANI涂层棉织物电磁屏蔽性能关系"

图6

棉织物组装不同层数GO/PANI时其吸收率、反射率和透射率关系变化"

表4

不同条件下GO/PANI涂层棉织物电磁屏蔽效能的耐久性"

样品名称 屏蔽效能/dB
未洗涤参照样 19.91±2.00
去离子水中浸泡24 h 19.35±1.92
去离子水中超声30 min 19.05±2.11
洗衣液中超声30 min 18.91±2.04
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