中国塑料 ›› 2025, Vol. 39 ›› Issue (6): 19-23.DOI: 10.19491/j.issn.1001-9278.2025.06.005

• 材料与性能 • 上一篇    下一篇

氧化铈改性聚丙烯复合材料的介电及力学性能研究

朱奎霖1, 吕冲1, 郭雷1, 陈艺琳1, 黄易峰2, 赵培琦1, 江学良1, 游峰1()   

  1. 1.武汉工程大学材料科学与工程学院,湖北省等离子体化学与新材料重点实验室,武汉 430205
    2.武汉工程大学邮电与信息工程学院,机械与电气工程学院,武汉 430073
  • 收稿日期:2024-08-19 出版日期:2025-06-26 发布日期:2025-06-20
  • 通讯作者: 游峰(1985-),男,副教授,从事聚合物基复合材料研究,youfeng.mse@wit.edu.cn
    E-mail:youfeng.mse@wit.edu.cn

Study on dielectric and mechanical properties of cerium oxide⁃modified polypropylene composites

ZHU Kuilin1, LYU Chong1, GUO Lei1, CHEN Yilin1, HUANG Yifeng2, ZHAO Peiqi1, JIANG Xueliang1, YOU Feng1()   

  1. 1.Hubei Key Laboratory of Plasma Chemistry and Advanced Materials,School of Materials Science and Engineering,Wuhan Institute of Technology,Wuhan 430205,China
    2.School of Mechanical and Electrical Engineering,College of Post and Telecommunication of WIT,Wuhan 430073,China
  • Received:2024-08-19 Online:2025-06-26 Published:2025-06-20
  • Contact: YOU Feng E-mail:youfeng.mse@wit.edu.cn

摘要:

通过氨基功能化处理CeO2进行改性,引入MAPP作为增容剂,改善其在聚丙烯(PP)基体中的分散性,并引入聚烯烃弹性体(POE)制备NH2⁃CeO2/MAPP/PP/POE复合材料,对其介电性能、力学性能进行了研究。结果表明,POE填入量越大,NH2⁃CeO2/MAPP/PP/POE复合材料的介电常数会增大,相应的介电损耗也会增大。POE质量分数为11%时,测试频率为1 kHz,NH2⁃CeO2/MAPP/PP/POE复合材料的介电常数达到最大值4.23,对应的介电损耗为0.0183,断裂伸长率为66.7%。

关键词: 氧化铈, 聚烯烃弹性体, 聚丙烯, 介电性能, 力学性能

Abstract:

NH2⁃CeO2/MAPP/PP/POE composites were synthesized through amino⁃functionalized CeO2 modification, incorporating maleic anhydride⁃grafted polypropylene (MAPP) as a compatibilizer to improve dispersion within the polypropylene (PP) matrix, and blending with polyolefin elastomer (POE). The dielectric, thermal, and mechanical properties of the composites were systematically investigated. The results demonstrated that increasing the POE content elevated both the dielectric constant and dielectric loss of the composites. At a test frequency of 1 kHz and a POE mass fraction of 11 %, the NH2⁃CeO2/MAPP/PP/POE composite achieved optimal performance with a maximum dielectric constant of 4.23, accompanied by a dielectric loss of 0.0183 and elongation at break of 66.7 %.

Key words: cerium oxide, polyolefin elastomer, polypropylene, dielectric property, mechanical property

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