摘要详情
  1. 活动首页
  2. 摘要清单
  3. 摘要详情
430 / 2022-03-15 21:49:55
Evaluation and Study of Different Modified Polypropylene Cable Insulation Materials
polypropylene,modification methods,electrical properties,mechanical properties
7. High Voltage Cable Insulation
摘要录用
尧 冯 / 中国电力科学研究院
Thermoplastic polypropylene has attracted extensive attention because of its recyclable and environmentally friendly properties. It has excellent electrical properties, but has some defects, such as poor impact resistance at low temperature and poor aging resistance, which affect the application of polypropylene cable. Therefore, there are some method to adopt to improve PP's properties to meet the requirements of power cables. In this paper, different modified polypropylene cable insulation materials (PP-Blended, PP-Copolymerized, PP-Grafted) were used as the research object. Their structures were analyzed by differential scanning calorimetry, Fourier infrared spectroscopy, and X-ray diffraction analysis, and their mechanical and electrical properties, such as dielectric constant and loss, breakdown strength, and other macroscopic properties were tested. The results show that the main difference of infrared spectrum is reflected in the absorption peak at 720cm-1 and 730cm-1. The melting process and crystallization process curve of PPC have only one peak, while the curve of PPB and PPG have two peaks. It represents the modified polypropylene cable insulation materials in China are based on the idea of copolymerization modification to improve the low temperature flexibility of the material. At the same time, different modification ideas are used to control the phase structure and crystal structure of the material, so that the material has a high mechanical performance. Among them, PPG has the largest elongation at break, which is 729.2%. The breakdown field strength of PPC can reach 91.5 kV/mm under 90℃. The study in this paper will provide guidance and direction for the modification of polypropylene in the future.

 
重要日期

  • 会议日期

    09月25日

    2022

    至

    09月29日

    2022

  • 08月15日 2022

    提前注册日期

  • 09月10日 2022

    报告提交截止日期

  • 11月10日 2022

    注册截止日期

  • 11月30日 2022

    初稿截稿日期

  • 11月30日 2022

    终稿截稿日期

主办单位
IEEE DEIS
承办单位
Chongqing University
联系方式
登录查看完整联系方式
历届会议
移动端
在手机上打开
小程序
打开微信小程序
客服
扫码或点此咨询