电工技术学报  2018, Vol. 33 Issue (23): 5564-5572    DOI: 10.19595/j.cnki.1000-6753.tces.171680
高电压与绝缘 |
新型UV XLPE电缆绝缘材料的交联及电学特性
付雨微1, 王暄2, 吴强华3, 赵洪2
1. 哈尔滨理工大学电气与电子工程学院 哈尔滨 150080;
2. 哈尔滨理工大学电介质及其应用重点实验室 哈尔滨 150080;
3. 中国科学技术大学高分子科学与工程系 合肥 230026
Crosslinked and Electrical Characteristics for Cable Insulating Material of New UV XLPE
Fu Yuwei1, Wang Xuan2, Wu Qianghua3, Zhao Hong2
1. School of Electrical and Electronic Engineering Harbin University of Science and Technology Harbin 150080 China;
2. Key Laboratory of Engineering Dielectrics and Its Application Harbin University of Science and Technology Harbin 150080 China;
3. Department of Polymer Science and Engineering University of Science and Technology of China Hefei 230026 China
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摘要 为了探究紫外光交联聚乙烯(UV XLPE)电缆绝缘材料的交联及电学特性,实验测试了大分子光引发体系和小分子光引发体系的热迁移损失速率及交联效率,并对经由两种光引发体系引发的交联试样的电学特性进行了测试,进一步分析建立了电缆线芯的UV XLPE交联度径向分布模型并对其进行了数学解析。结果表明:相比小分子光引发剂及交联剂,大分子光引发剂及交联剂的热迁移损失速率有明显改善,交联效率也有一定程度的提高;UV XLPE薄膜试样的电学特性较小分子引发体系引发的薄膜试样有所改善,交联度在75%左右时击穿性能最佳,高于其值时击穿性能呈现下降趋势;非线性拟合法所得交联度径向分布模型的平均值与实测值的误差仅为0.5%,这对UV XLPE的实验研究具有较好的适用性。
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付雨微
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关键词 紫外光交联聚乙烯交联特性电学特性交联度径向分布模型    
Abstract:In order to study the crosslinked and electrical characteristics of insulation material for new ultraviolet crosslinking polyethylene (UV XLPE) cable, the loss rates of thermal migration and crosslinked efficiencies for macromolecular photoinitiating system and micromolecular photoinitiating system were tested. Then the electrical characteristics of crosslinking samples that initiated by two kinds of photoinitiating systems were measured at room temperature, respectively. In addition, a radial distribution model of UV XLPE crosslinked degree for cable core was deduced, and a mathematical analysis was made for the model. The analysis indicate that the loss rates of thermal migration for macromolecule photoinitiator and crosslinker are improved significantly than the micromolecule photoinitiator as well as crosslinker, and the crosslinking efficiencies of them are improved to some extent. Besides, the electrical performances of new UV XLPE were improved somewhat, and the breakdown performances can reaches a high point at the crosslinked degree is around 75%, the breakdown strength showed a trend of decline when it higher than the value. The error of the mean value for radial distribution mode between the nonlinear fitting method and actual measured is only five thousandths, so it has more accurate applicability on the experimental research of new UV XLPE.
Key wordsUV XLPE    crosslinked property    electrical property    radial distribution model of crosslinked degree   
收稿日期: 2017-12-12      出版日期: 2018-12-17
PACS: TM215.1  
  O631.6  
基金资助:国家高新技术研究发展计划(863计划)资助项目(2013AA030702)
作者简介: 付雨微 女,1989年生,博士研究生,研究方向为紫外光交联聚乙烯的介电特性。E-mail:fuyuweioo@163.com;王 暄 男,1968年生,教授,博士生导师,研究方向为电介质工程新技术及其应用、纳米电介质性能表征与测试、太赫兹电磁波与电介质相互作用等。E-mail:topix@sina.com(通信作者)
引用本文:   
付雨微, 王暄, 吴强华, 赵洪. 新型UV XLPE电缆绝缘材料的交联及电学特性[J]. 电工技术学报, 2018, 33(23): 5564-5572. Fu Yuwei, Wang Xuan, Wu Qianghua, Zhao Hong. Crosslinked and Electrical Characteristics for Cable Insulating Material of New UV XLPE. Transactions of China Electrotechnical Society, 2018, 33(23): 5564-5572.
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