稀土氧化物掺杂碳纳米管屏蔽纸

doi:10.16085/j.issn.1000-6613.2017-0628

化工进展 ›› 2018, Vol. 37 ›› Issue (01): 236-241.DOI: 10.16085/j.issn.1000-6613.2017-0628

稀土氧化物掺杂碳纳米管屏蔽纸

邱治文, 孙晓刚, 庞志鹏, 陈珑, 蔡满园

南昌大学机电工程学院, 江西南昌 330031

收稿日期:2017-04-11 修回日期:2017-06-19 出版日期:2018-01-05 发布日期:2018-01-05
通讯作者: 孙晓刚,教授,主要从事碳纳米管制备及应用研究。
作者简介:邱治文(1991-),男,硕士研究生。
基金资助:
江西省科技厅科研项目（20142BBE50071）及江西省教育厅项目（KJLD13006）。

Carbon nanotube shielding paper doped by rare earth oxide

QIU Zhiwen, SUN Xiaogang, PANG Zhipeng, CHEN Long, CAI Manyuan

School of Mechantronics Engineering, Nanchang University, Nanchang 330031, Jiangxi, China

Received:2017-04-11 Revised:2017-06-19 Online:2018-01-05 Published:2018-01-05

摘要/Abstract

摘要： 研究了不同稀土氧化物掺杂碳纳米管复合成屏蔽纸的屏蔽性能。采用Ga₂O₃、La₂O₃、Nd₂O₃、Dy₂O₃ 4种稀土氧化物作为添加剂掺杂碳纳米管，掺杂后稀土氧化物占混合物的质量分数为20%。以纸纤维为基体，通过高速剪切分散，真空抽滤制备复合屏蔽纸。检测显示屏蔽纸具有良好导电性能和电磁屏蔽性能，并且兼具纸的柔韧性和易成型性。采用扫描电子显微镜、四探针电阻仪、矢量网络分析仪对其进行表征，研究表明，4种稀土氧化物掺杂碳纳米管的屏蔽纸在175～1600MHz频段屏蔽效果由低到高依次为Nd₂O₃、Ga₂O₃、Dy₂O₃、La₂O₃，其中La₂O₃掺杂稀土氧化物的屏蔽性能最优，屏蔽效能为-24.5～-30.2dB。

关键词: 稀土氧化物, 碳纳米管, 屏蔽纸, 电磁屏蔽, 屏蔽效能

Abstract: The electromagnetic interference shielding effectiveness (EMI SE) of carbon nanotube (CNT)shielding paper doped with different rare earth oxides were studied, which include Ga₂O₃, La₂O₃, Nd₂O₃ and Dy₂O₃. The mass fraction of the doped rare earth oxides was 20% in the mixture. Doped CNTs were used as additives for the EMI shielding papers. Pulp fibers were used as the matrix. The two parts were mixed in water under high-speed shearing and then subjected to vacuum filtration to make the composite shielding paper. The composite paper showed high electrical conductivity and electromagnetic interference shielding effectiveness. The shielding papers have excellent flexibility and formability. The papers were characterized by scanning electron microscopy (SEM), Four-point probes (4PP), and vector network analyzer. The results showed the four rare earth oxides doped CNTs all exhibited excellent EMI shielding performance but in the order of Nd₂O₃ < Ga₂O₃ < Dy₂O₃ < La₂O₃. The maximum EMI SE reached -24.5dB to -30.2dB in the frequency range of 175-1600MHz with the doping of 20% La₂O₃.

Key words: rare earth oxide, carbon nanotube, shielding paper, electromagnetic interference shielding, shielding effectiveness

中图分类号:

O613.7

邱治文, 孙晓刚, 庞志鹏, 陈珑, 蔡满园. 稀土氧化物掺杂碳纳米管屏蔽纸[J]. 化工进展, 2018, 37(01): 236-241.

QIU Zhiwen, SUN Xiaogang, PANG Zhipeng, CHEN Long, CAI Manyuan. Carbon nanotube shielding paper doped by rare earth oxide[J]. Chemical Industry and Engineering Progress, 2018, 37(01): 236-241.

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稀土氧化物掺杂碳纳米管屏蔽纸

Carbon nanotube shielding paper doped by rare earth oxide

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