改性氧化镁/环氧树脂复合材料的介电及亲疏水性能

doi:10.11930/j.issn.1004-9649.202107105

中国电力 ›› 2022, Vol. 55 ›› Issue (2): 209-216.DOI: 10.11930/j.issn.1004-9649.202107105

• 新型材料在电力系统中的应用 • 上一篇

改性氧化镁/环氧树脂复合材料的介电及亲疏水性能

庞先海¹, 贾伯岩¹, 陈志杰², 顾朝敏¹, 赵莉华², 任俊文²

1. 国网河北省电力有限公司电力科学研究院，河北石家庄 050021;
2. 四川大学电气工程学院, 四川成都 610021

收稿日期:2021-07-22 修回日期:2021-08-16 出版日期:2022-02-28 发布日期:2022-02-23
作者简介:庞先海（1983—），男，高级工程师，从事电网设备状态检测、试验及检测技术研究，E-mail：835306669@qq.com;任俊文（1987—），男，通信作者，副研究员，从事电气绝缘材料研究，E-mail：myboyryl@scu.edu.cn
基金资助:
国家自然科学基金资助项目（5210070943）；国网河北省电力有限公司科技项目（kj2020-052）

Dielectric and Hydrophobic Properties of Modified Magnesium Oxide/Epoxy Resin Composites

PANG Xianhai¹, JIA Boyan¹, CHEN Zhijie², GU Chaomin¹, ZHAO Lihua², REN Junwen²

1. State Grid Hebei Electric Power Research Institute, Shijiazhuang 050021, China;
2. College of Electrical Engineering, Sichuan University, Chengdu 610021, China

Received:2021-07-22 Revised:2021-08-16 Online:2022-02-28 Published:2022-02-23
Supported by:
This work is supported by National Natural Science Foundation of China (No.5210070943) and Science & Technology Project of State Grid Hebei Electric Power Co., Ltd. (No.kj2020-052)

摘要/Abstract

摘要： 为改进开关设备中环氧树脂的电气及疏水性能，对纳米氧化镁（nMgO）分别进行硅烷偶联剂（KH560）及含氟硅烷偶联剂（全氟癸基三乙氧基硅烷）改性，利用FT-IR、XPS对其进行表征。并用溶液共混法分别制备不同质量分数（5%、10%、15%、20%）的环氧复合材料。通过对其介电常数、介电损耗、电导率、接触角的测试表征，结果表明：氟元素的引入可降低复合材料的表面能，且随着掺杂含量的提升，环氧复合材料的疏水性得到明显提升，在质量分数为20%时达到114°。其电气性能均满足电气设备使用要求，其中介电损耗低于环氧树脂的水平，电阻率高于环氧树脂。

关键词: 环氧树脂, 氧化镁, 接触角, 介电性能, 纳米材料

Abstract: To improve the electrical and hydrophobic properties of epoxy resins in switchgear equipment，the magnesium oxide nanoparticles (nMgO) are modified with silane coupling agent (KH560) and fluorinated silane coupling agent respectively, and characterized by FT-IR and XPS. And the epoxy composites of different concentrations (5%, 10%, 15% and 20%) are prepared with solution blending method, and characterized by testing dielectric constant, dielectric loss, conductivity and contact angle. The results show that the introduction of fluorine element can reduce the surface energy of the composites, and the hydrophobicity of the epoxy composites is significantly improved with the increase of the doping content, reaching 114° at 20 wt.%. The electrical properties of the epoxy composites all meet the requirements for the use of electrical equipment, with the dielectric loss being lower than the level of epoxy resin and the resistivity being higher than that of epoxy resin.

Key words: epoxy, magnesium oxide, contact angle, dielectric property, nanomaterials

庞先海, 贾伯岩, 陈志杰, 顾朝敏, 赵莉华, 任俊文. 改性氧化镁/环氧树脂复合材料的介电及亲疏水性能[J]. 中国电力, 2022, 55(2): 209-216.

PANG Xianhai, JIA Boyan, CHEN Zhijie, GU Chaomin, ZHAO Lihua, REN Junwen. Dielectric and Hydrophobic Properties of Modified Magnesium Oxide/Epoxy Resin Composites[J]. Electric Power, 2022, 55(2): 209-216.

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链接本文: https://www.electricpower.com.cn/CN/10.11930/j.issn.1004-9649.202107105

https://www.electricpower.com.cn/CN/Y2022/V55/I2/209

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改性氧化镁/环氧树脂复合材料的介电及亲疏水性能

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