C4F7N/CO2及其分解气体与环氧树脂的相容特性分析

doi:10.19595/j.cnki.1000-6753.tces.240176

摘要
图/表
参考文献
相关文章 (15)

全文: PDF (1077 KB)
输出: BibTeX | EndNote (RIS)

摘要

全氟异丁腈（C₄F₇N）混合气体绝缘电气设备正处于研发与小规模应用阶段,气固材料的相容性是普遍关注的问题之一。该文以氦气（He）为对照组,以气体电气设备常用的固体绝缘材料双酚A型环氧树脂为研究对象,开展了70℃和100℃条件下为期28天的相容性热加速试验。从气体组分、固体表面形貌、表面化学性质、玻璃化转变温度等方面评价了C₄F₇N/CO₂混合气体及其分解气体两种气氛与双酚A型环氧树脂材料的相容特性。结合α-Al₂O₃掺杂微粒与环氧树脂基体的界面区理论,分析了环氧树脂试样电学性能的变化规律。研究结果表明,综合考虑气体与固体的相互作用,C₄F₇N/CO₂及其分解气体与双酚A型环氧树脂具有良好的气固相容性。

	服务

	把本文推荐给朋友
	加入我的书架
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	段竣然
	颜湘莲
	高克利
	刘伟
	秦明辉
	韩冬
	张国强

关键词 ： C₄F₇N, CO₂, 分解气体, 双酚A型环氧树脂, 气固相容性

Abstract：

As a potential SF₆ alternative, perfluoroisobutyronitrile (C₄F₇N) mixed gas-insulated electrical equipment is currently in the research and small-scale application stage. The compatibility of gas-solid materials is essential for long-term operation of gas-insulated electrical equipment. Taking Helium gas as the control group, this paper conducts thermal acceleration tests to assess the compatibility of Bisphenol-A epoxy resin under C₄F₇N/CO₂ and its gas byproduct atmospheres to provide a reference for the application of C₄F₇N mixed gas in environmentally friendly gas-insulated electrical equipment.
Three atmospheres are established: Helium, C₄F₇N/CO₂ mixture, C₄F₇N/CO₂ and its gas byproducts. Herein, the C₄F₇N/CO₂ and its gas byproducts are generated through repetitive 50 Hz AC breakdown discharge tests. Bisphenol-A epoxy resin is shaped into column and sheet samples. Compatibility thermal acceleration tests are conducted at 70 ℃ and 100 ℃ for 28 days in a high- low-temperature test chamber. The compatibility characteristics are evaluated from gas composition, solid surface morphology, solid surface chemical properties, and glass transition temperature using a gas chromatography-mass spectrometer (GC-MS), scanning electron microscope (SEM)/energy dispersive spectrometer (EDS), Fourier transform infrared spectroscopy (FIRT), and differential scanning calorimeter, respectively. According to the interface zone theory between doped particles α-Al₂O₃ and epoxy resin matrix, variations in the electrical properties of epoxy resin samples are analyzed.
GC-MS results show no new gases are generated in the atmospheres of C₄F₇N/CO₂ mixture and C₄F₇N/CO₂ and its gas byproducts. However, due to the adsorption of α-Al₂O₃ particles filled in epoxy resin samples, the content of CNCN in the C₄F₇N/CO₂and its gas byproduct atmosphere is significantly decreased. According to SEM/EDS detection, epoxy resin samples’ surface has slight corrosion under the C₄F₇N/CO₂ and its gas byproduct atmosphere. During thermal acceleration tests, α-Al₂O₃ particles and agglomerates precipitate onto the surface and exhibit a loose state, resulting in a decrease in bonding degree between α-Al₂O₃ particles and the epoxy resin matrix. According to FTIR detection, there is no significant change in the surface elements of the epoxy resin samples. α-Al₂O₃ characteristic absorption peaks strengthen, while some epoxy resin distinct absorption peaks decrease. The glass transition temperature of the epoxy resin increases after compatibility thermal acceleration tests. The effects of C₄F₇N/CO₂ and its gas byproducts on the surface resistivity, volume resistivity, and flashover voltage of epoxy resin samples are minor. In conclusion, C₄F₇N/CO₂ and its gas byproducts are compatible with Bisphenol-A epoxy resin materials, and the gas-solid compatibility can meet the requirements for normal operation of gas-insulated electrical equipment.

Key words： C₄F₇N CO₂ byproducts Bisphenol-A epoxy resin gas-solid compatibility

收稿日期: 2024-01-26

PACS:

TM213

基金资助:

怀柔科学城成果落地项目资助（Z221100005822004）

通讯作者: 韩冬女,1976年生,副研究员,硕士生导师,研究方向为SF₆气体及其替代技术、电力设备故障检测等。E-mail：donghan@mail.iee.ac.cn

作者简介: 段竣然男,1999年生,硕士研究生,研究方向为电力设备故障诊断与检测技术等。E-mail：duanjunran@mail.iee.ac.cn

引用本文:

段竣然, 颜湘莲, 高克利, 刘伟, 秦明辉, 韩冬, 张国强. C₄F₇N/CO₂及其分解气体与环氧树脂的相容特性分析[J]. 电工技术学报, 0, (): 2492909-2492909. Duan Junran, Yan Xianglian, Gao Keli, Liu Wei, Qin Minghui, Han Dong, Zhang Guoqiang. Compatibility Analysis of C₄F₇N/CO₂ and Its Gas Byproducts with Epoxy Resin. Transactions of China Electrotechnical Society, 0, (): 2492909-2492909.

链接本文:

https://dgjsxb.ces-transaction.com/CN/10.19595/j.cnki.1000-6753.tces.240176 https://dgjsxb.ces-transaction.com/CN/Y0/V/I/2492909

[1] Intergovernmental Panel on Climate Change. Climate Change 2021: The Physical Science Basis[M]. Cambridge: Cambridge University Press, 2021.
[2] 周朕蕊, 韩冬, 赵明月, 等. SF₆替代气体分解特性的研究综述[J]. 电工技术学报, 2020, 35(23): 4998-5014.
Zhou Zhenrui, Han Dong, Zhao Mingyue, et al.Review on decomposition characteristics of SF₆ alternative gases[J]. Transactions of China Electrotechnical Society, 2020, 35(23): 4998-5014.
[3] Kieffel Y, Biquez F.SF₆ alternative development for high voltage switchgears[C]//2015 IEEE Electrical Insulation Conference (EIC), Seattle, WA, USA, 2015: 379-383.
[4] Maiss M, Steele L P, Francey R J, et al.Sulfur hexafluoride—a powerful new atmospheric tracer[J]. Atmospheric Environment, 1996, 30(10/11): 1621-1629.
[5] 逯思敏, 汤贝贝, 高克利, 等. 电晕放电下三氟甲基磺酰氟的分解特性与成因分析[J]. 高电压技术, 2023, 49(11): 4556-4562.
Lu Simin, Tang Beibei, Gao Keli, et al.Decomposition characteristics and by-product formation of trifluoromethyl sulfonyl fluoride under corona discharge[J]. High Voltage Engineering, 2023, 49(11): 4556-4562.
[6] Nechmi H E, Beroual A, Girodet A, et al.Fluoronitriles/CO₂ gas mixture as promising substitute to SF₆ for insulation in high voltage applications[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2016, 23(5): 2587-2593.
[7] Pohlin K, Kieffel Y, Owens J.Characteristics of fluoronitrile/CO₂ mixture-an alternative to SF₆[R]. Paris: CIGRE, 2016.
[8] 王浩, 颜湘莲, 韩冬, 等. C₄F₇N/CO₂及其分解气体与橡胶密封材料的相容性实验[J]. 高电压技术, 2022, 48(7): 2625-2634.
Wang Hao, Yan Xianglian, Han Dong, et al.Experiments for compatibility characteristics of C₄F₇N/CO₂ and its gas byproducts with commonly used rubber sealing materials[J]. High Voltage Engineering, 2022, 48(7): 2625-2634.
[9] 刘伟, 韩冬, 朱姗, 等. 典型放电缺陷下的C₄F₇N/CO₂分解特性[J]. 高电压技术, 2023, 49(11): 4498-4506.
Liu Wei, Han Dong, Zhu Shan, et al.Decomposition characteristics of C₄F₇N/CO₂ under typical discharge defects[J]. High Voltage Engineering, 2023, 49(11): 4498-4506.
[10] Kessler F, Sarfert-Gast W, Kuhlmann L, et al.Compatibility of a gaseous dielectric with Al, Ag, and Cu and gas-phase synthesis of a new N-acylamidine copper complex[J]. European Journal of Inorganic Chemistry, 2020, 2020(20): 1989-1994.
[11] Li Yi, Zhang Xiaoxing, Zhang Ji, et al.Thermal compatibility between perfluoroisobutyronitrile-CO₂ gas mixture with copper and aluminum switchgear[J]. IEEE Access, 2019, 7: 19792-19800.
[12] Kessler F, Sarfert-Gast W, Ise M, et al.Interaction of low global warming potential gaseous dielectrics with materials of gas-insulated systems[C]//20th International Symposium on High Voltage Engineering, Buenos Aires, Argentinal, 2017: 144.
[13] 郑哲宇, 李涵, 周文俊, 等. 环保绝缘气体C₃F₇CN与密封材料三元乙丙橡胶的相容性研究[J]. 高电压技术, 2020, 46(1): 335-341.
Zheng Zheyu, Li Han, Zhou Wenjun, et al.Compatibility of eco-friendly insulating medium C₃F₇CN and sealing material EPDM[J]. High Voltage Engineering, 2020, 46(1): 335-341.
[14] Meyer F, Huguenot P, Kieffel Y, et al.Application of fluoronitrile/CO₂/O₂ mixtures in high voltage products to lower the environmental footprint[R]. Paris: CIGRE, 2018.
[15] 赵明月, 韩冬, 周朕蕊, 等. 活性氧化铝和分子筛对C₃F₇CN/CO₂及其过热分解产物的吸附特性[J]. 电工技术学报, 2020, 35(1): 88-96.
Zhao Mingyue, Han Dong, Zhou Zhenrui, et al.Adsorption characteristics of activated alumina and molecular sieves for C₃F₇CN/CO₂ and its decomposition by-products of overheating fault[J]. Transactions of China Electrotechnical Society, 2020, 35(1): 88-96.
[16] Yuan Ruijun, Li Han, Zhou Wenjun, et al.Study of compatibility between epoxy resin and C₄F₇N/CO₂ based on thermal ageing[J]. IEEE Access, 2020, 8: 119544-119553.
[17] (德)赫尔曼·科赫. GIS(气体绝缘金属封闭开关设备)原理与应用[M]. 钟建英, 林莘, 张友鹏, 等译. 北京: 机械工业出版社, 2017.
[18] 吴鹏, 叶凡超, 李祎, 等. C₄F₇N/CO₂/O₂与三元乙丙橡胶的相容性及相互作用机理研究[J]. 电工技术学报, 2022, 37(13): 3393-3403.
Wu Peng, Ye Fanchao, Li Yi, et al.Compatibility and interaction mechanism between C₄F₇N/CO₂/O₂ and EPDM[J]. Transactions of China Electrotechnical Society, 2022, 37(13): 3393-3403.
[19] 吕浥尘, 郑宇, 朱太云, 等. 五种吸附剂与C₄F₇N气体及CF₃SO₂F气体的相容性试验研究[J]. 电工技术学报, 2023, 38(增刊1): 196-203.
Lü Yichen, Zheng Yu, Zhu Taiyun, et al.Experimental study on compatibility with C₄F₇N and CF₃SO₂F gases and five adsorbents[J]. Transactions of China Electrotechnical Society, 2023, 38(S1): 196-203.
[20] González M G, Cabanelas J C, Baselga J.Applications of FTIR on epoxy resins - identification, monitoring the curing process, phase separation and water uptake[M]//Theophanides T. Infrared Spectroscopy: Materials Science, Engineering and Technology. Rijeka: InTech, 2012: 261-284.
[21] 赵春芳, 尹正勇, 李波. α型氧化铝的微观结构对红外光谱图的影响[J]. 光谱实验室, 2007, 24(3): 341-344.
Zhao Chunfang, Yin Zhengyong, Li Bo.Effect of alpha type alumina microstructure on infrared spectra[J]. Chinese Journal of Spectroscopy Laboratory, 2007, 24(3): 341-344.
[22] 宋岩泽, 梁贵书, 冉慧娟, 等. 等离子体处理调控表面电导率提高环氧树脂绝缘性能的研究[J]. 电工技术学报, 2023, 38(15): 3984-3998.
Song Yanze, Liang Guishu, Ran Huijuan, et al.Study on improving insulation properties of epoxy resin by regulating surface conductivity by plasma treatment[J]. Transactions of China Electrotechnical Society, 2023, 38(15): 3984-3998.
[23] 曹春诚, 李文博, 程显, 等. 纳米Al₂O₃/环氧树脂复合材料微秒脉冲沿面闪络特性研究[J]. 高压电器, 2023, 59(6): 111-119.
Cao Chuncheng, Li Wenbo, Cheng Xian, et al.Study on surface flashover characteristic of nano-Al₂O₃/epoxy resin composites in microsecond pulse[J]. High Voltage Apparatus, 2023, 59(6): 111-119.
[24] Prashanth P A, Raveendra R S, Hari Krishna R, et al.Synthesis, characterizations, antibacterial and photoluminescence studies of solution combustion-derived α-Al₂O₃ nanoparticles[J]. Journal of Asian Ceramic Societies, 2015, 3(3): 345-351.
[25] 李盛涛, 谢东日, 闵道敏. 聚丙烯/Al2O3纳米复合介质直流击穿特性与电荷输运仿真研究[J]. 中国电机工程学报, 2019, 39(20): 6122-6130, 6193.
Li Shengtao, Xie Dongri, Min Daomin.Numerical simulation on space charge transport and DC breakdown properties of polypropylene/Al₂O₃ nanocomposites[J]. Proceedings of the CSEE, 2019, 39(20): 6122-6130, 6193.
[26] Tanaka T, Kozako M, Fuse N, et al.Proposal of a multi-core model for polymer nanocomposite dielectrics[J]. IEEE Transactions on Dielectrics and Electrical Insulation, 2005, 12(4): 669-681.