碳纳米管改性酚醛树脂复合碳源对碳陶瓷电性能的增强

doi:10.12066/j.issn.1007-2861.2704

上海大学学报(自然科学版) ›› 2025, Vol. 31 ›› Issue (5): 827-835.doi: 10.12066/j.issn.1007-2861.2704

• 材料科学 • 上一篇

碳纳米管改性酚醛树脂复合碳源对碳陶瓷电性能的增强

胡泰山¹, 胡上茂¹, 刘刚¹, 梅琪¹, 任鑫², 姚政²

1. 南方电网科学研究院, 广州 510700;
2. 上海大学理学院, 上海 200444

收稿日期:2025-07-25 发布日期:2025-11-12
通讯作者: 任鑫(1981-)男,副研究员,博士,研究方向为电功能陶瓷等. E-mail:renxin108@shu.edu.cn
基金资助:
先进电工材料与装备基础联合实验室开放基金资助项目(CSGULAEMEST-2024-KF-02)

Enhancement efiect of carbon nanotube modifled phenolic resin composite carbon source on electrical properties of carbon ceramics

HU Taishan¹, HU Shangmao¹, LIU Gang¹, MEI Qi¹, REN Xin², YAO Zheng²

1. Electric Power Research Institute, China Southern Power Grid, Guangzhou 510700, China;
2. College of Sciences, Shanghai University, Shanghai 200444, China

Received:2025-07-25 Published:2025-11-12

摘要/Abstract

摘要： 研究采用碳纳米管改性酚醛树脂作为有机碳源增强碳陶瓷电性能的作用.通过扫描电镜表征碳陶瓷电阻的微观形貌,利用能谱分析仪表征碳元素在陶瓷中的分布状态,采用温度电阻系数仪评估其热稳定性,并用脉冲电压发生器测试电阻电压系数和能量耐受性.结果表明,引入碳纳米管改性酚醛树脂优化了复合材料的微观结构和性能,改善了其机械强度和热稳定性.制得复合材料的杨氏模量从214 GPa升至281 GPa,电阻温度系数从$-2 252$$\times$10$^{-6}$/℃降至$-$873$\times$10$^{-6}$/℃,电阻电压系数从$-1.06$降至$-0.32$%/(kV$\cdot$cm$^{-1}$),能量耐受性从200 J$\cdot$cm$^{-3}$升至450 J$\cdot$cm$^{-3}$.

关键词: 碳陶瓷电阻, 酚醛树脂, 碳纳米管, 能量耐受, 电阻温度系数

Abstract: This study investigates the role of carbon nanotube-modified phenolic resin as an organic carbon source in enhancing the electrical resistance properties of carbon ceramics. The microstructure of the carbon ceramic resistors was characterized using scanning electron microscopy (SEM), while the distribution of carbon elements within the ceramic was analyzed using energy-dispersive spectroscopy (EDS). The thermal stability was evaluated using a temperature coefficient of resistance (TCR) meter, and the voltage coefficient of resistance (VCR) and energy withstand capability were tested using a pulse voltage generator. The results indicate that the introduction of carbon nanotube-modified phenolic resin optimized the microstructure and properties of the composite material, improving both mechanical strength and thermal stability. The Young's modulus increased from 214 to 281 GPa, and the temperature coefficient of resistance decreased from $-2 252$$\times$10$^{-6}$ to $-873$$\times $10$^{-6}$/℃. The improved voltage coefficient of resistance decreased from $-1.06$ to $-0.32%$/(kV$\cdot$cm$^{-1}$), and the energy withstand capability increased from 200 to 450 J$\cdot$cm$^{-3}$.

Key words: carbon-ceramic resistor, phenolic resin, carbon nanotubes, energy endurance, temperature coefficient of resistance (TCR)

中图分类号:

TQ174.75

胡泰山, 胡上茂, 刘刚, 梅琪, 任鑫, 姚政. 碳纳米管改性酚醛树脂复合碳源对碳陶瓷电性能的增强[J]. 上海大学学报(自然科学版), 2025, 31(5): 827-835.

HU Taishan, HU Shangmao, LIU Gang, MEI Qi, REN Xin, YAO Zheng. Enhancement efiect of carbon nanotube modifled phenolic resin composite carbon source on electrical properties of carbon ceramics[J]. Journal of Shanghai University（Natural Science Edition）, 2025, 31(5): 827-835.

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碳纳米管改性酚醛树脂复合碳源对碳陶瓷电性能的增强

Enhancement efiect of carbon nanotube modifled phenolic resin composite carbon source on electrical properties of carbon ceramics

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