| 碳纳米管膜的高温纯化研究 |
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| 引用本文： | 李恒江 庹凯泓.碳纳米管膜的高温纯化研究[J].宁波大学学报(理工版),2021,0(4):93-96. |
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| 作者姓名： | 李恒江 庹凯泓 |
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| 作者单位： | 1.宁波涵洋纺织科技有限公司, 浙江 宁波 315000; 2.嘉兴纳科新材料有限公司, 浙江 嘉兴 314000 |
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| 摘 要： | 为了获得纯度更高的碳纳米管膜, 保证材料发热稳定性, 需要对通过化学气相沉积法得到的碳纳米管膜进行二次纯化. 通过使用高温纯化炉, 在真空状态下, 从1700℃到3200℃分7挡温度对碳纳米管进行纯化, 并对其含碳量和方块电阻进行比较. 结果表明, 高温纯化后的碳纳米管膜含碳量从95.0%提高到99.9%, 解决了含碳量低的问题. 同时, 在高温纯化中发现碳纳米管膜方块电阻从纯化前3Ω降低到0.5Ω, 方块电阻的降低对碳纳米管膜具有十分重要的意义, 同样对碳纳米管膜后续产品的开发也有重要作用.
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| 关 键 词： | 碳纳米管膜含碳量 高温纯化 纯化温度 纯化时间 方块电阻变化 |
Purification process of carbon nanotubes membrane at high temperature |
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| LI Hengjiang,TUO Kaihong.Purification process of carbon nanotubes membrane at high temperature[J].Journal of Ningbo University(Natural Science and Engineering Edition),2021,0(4):93-96. |
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| Authors: | LI Hengjiang TUO Kaihong |
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| Affiliation: | 1.Ningbo How Young Textile Technology Co., Ltd., Ningbo 315000, China; 2.Jiaxing Naco New Material Co., Ltd., Jiaxing 314000, China |
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| Abstract: | In order to obtain higher purity carbon nanotube membranes and ensure the thermal stability of materials, secondary purification of carbon nanotube membranes obtained by chemical vapor deposition is required. In this research work, carbon nanotubes are purified from 1700℃ to 3200℃ in vacuum using a high-temperature purification furnace, and their carbon content and square resistance are compared. The results show that the carbon content of the high temperature purified carbon nanotubes increases from 95.0% to 99.9%, which successfully tackles the problem of low carbon content. Meanwhile, also found is the high temperature purification of carbon nanotubes film sheet resistance shifting from 3 Ω down to 0.5 Ω before purification, during which process the low sheet resistance of carbon nanotube membrane heating efficiency and temperature stability is of great significance. |
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| Keywords: | carbon content of carbon nanotube film high-temperature purification purification temperature purification time square resistance change |
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