MXene/聚苯胺复合块体材料制备及电磁屏蔽性能研究

郭蕊; 朱美玲; 任玉洁; 王一丁; 郑琦

doi:10.12299/jsues.21-0314

MXene/聚苯胺复合块体材料制备及电磁屏蔽性能研究

doi: 10.12299/jsues.21-0314

郭蕊^{1a, 1b,},
朱美玲^{1a, 1b},
任玉洁^{1a, 1b},
王一丁²,
郑琦^{1a, 1b, ,}

1a.
东华大学纤维材料改性国家重点实验室, 上海 201620
1b.
东华大学材料科学与工程学院, 上海 201620
2.
上海市第二中学, 上海 200031

基金项目: 上海浦江人才计划项目资助（19PJ1400200)；上海市青少年科学创新实践工作站计划项目资助

详细信息

作者简介:
郭蕊：郭　蕊（1992−），女，博士，研究方向为电磁屏蔽/吸波材料. E-mail: 1271667290@qq.com

通讯作者:
郑　琦（1986−），女，副教授，博士，研究方向为晶态功能材料及电磁屏蔽/吸波材料. E-mail: qi.zheng@dhu.edu.cn

中图分类号: TB34
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- 被引次数: 0
出版历程
- 收稿日期: 2021-12-29
- 刊出日期: 2023-06-20

Preparation and electromagnetic shielding performance study of MXene/polyaniline bulk composites

GUO Rui^{1a, 1b
,},
ZHU Meiling^{1a, 1b},
REN Yujie^{1a, 1b},
WANG Yiding²,
ZHENG Qi^{1a, 1b
, ,}

1a.
State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University, Shanghai 201620, China
1b.
College of Materials Science and Engineering, Donghua University, Shanghai 201620, China
2.
Shanghai No.2 High School, Shanghai 200031, China

摘要

摘要: 电磁屏蔽材料是降低电磁辐射污染的重要手段，其中导电聚合物基复合材料广受关/注. 选用MXene二维材料为功能基元，利用超声、机械搅拌和冷冻干燥的方法将MXene均匀分散于聚苯胺基体中，并通过放电等离子体烧结技术制备新型MXene/聚苯胺块体复合材料. 结果表明，MXene的高电导率和片层堆积结构可有效提高聚苯胺的电磁屏蔽性能. 当MXene质量分数为40%时，复合材料电磁屏蔽性能最优，在8.2~12.4 GHz范围内可达24 dB.
- 聚苯胺复合材料 /
- 电磁屏蔽 /
- 放电等离子体烧结技术
Abstract: Electromagnetic inference (EMI) shielding materials are vital for the reduction of EM radiation pollution, in which conductive polymer-based composites have attracted wide attentions. Herein, MXene/PANI bulk composites were successfully prepared by spark plasma sintering, in which MXene was chosen as the functional 2D materials evenly dispersed in the PANI matrix through ultrasonic, mechanical agitation and freeze-drying methods. Consequently, MXene with high electrical conductivity and lamellar structure effectively improves the EMI shielding performance of PANI. When the content of MXene is 40%, the composites achieve the optimal EMI shielding characteristics of 24 dB in the range of 8.2~12.4 GHz.
- polyaniline composites /
- electromagnetic interference shielding /
- spark plasma sintering

HTML全文

图 1 40%-MXene/PANI块体样品的光学照片

Figure 1. Optical photos of 40%-MXene/PANI block sample

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图 2 MXene/PANI 复合材料XRD谱图

Figure 2. XRD spectra of MXene / PANI composites

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图 3 粉体SEM图

Figure 3. SEM images of powder

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图 4 块体断面SEM图

Figure 4. SEM images of bulk

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图 5 40%-MXene/PANI复合块体材料表面的SEM图及相应的元素映射图（EDS）图

Figure 5. SEM image and corresponding EDS elemental mapping of 40%-MXene/PANI bulk composite

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图 6 不同厚度条件下PANI块体和0.95 mm厚度40%-MXene/PANI复合材料块体电磁屏蔽性能变化趋势图

Figure 6. Variation trends of electromagnetic shielding performances of PANI bulk with different thickness and 40%-MXene/PANI at 0.95 mm

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图 7 复合不同含量MXene的MXene/PANI复合材料块体的电磁屏蔽性能变化趋势图

Figure 7. Electromagnetic shielding value curves of MXene /PANI bulk composites with various MXene mass fraction

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表 1 聚苯胺及复合材料的电导率

Table 1. Conductivity of polyaniline and composites

性能参数 PANI 1% 5% 10% 40% 60%

电导率/（S∙cm⁻¹） 3.81 2.20 5.18 5.56 10.30 6.98

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