欢迎访问过程工程学报, 今天是

过程工程学报 ›› 2016, Vol. 16 ›› Issue (5): 781-787.DOI: 10.12034/j.issn.1009-606X.216176

• 过程与工艺 • 上一篇    下一篇

SiO2中空微球对高温硫化硅橡胶电气绝缘性能的影响

钱西慧1,2,张冬海2,薛杨1,2,李晓飞2,李文辉2,陈运法3   

  1. 1. 中国科学院大学
    2. 中国科学院过程工程研究所多相复杂系统国家重点实验室
    3. 中国科学院过程工程研究所
  • 收稿日期:2016-04-07 修回日期:2016-04-25 出版日期:2016-10-20 发布日期:2016-10-14
  • 通讯作者: 陈运法 yfchen@home.ipe.ac.cn

Effect of Hollow Silica Spheres on Electrical Insulation Properties of High Temperature Vulcanized Silicone Rubber Composite

QIAN Xi-hui 1,2,ZHANG Dong-hai 1,XUE Yang 2,3,LI Xiao-fei 3,LI Wen-hui 4,CHEN Yun-fa 5   

  1. 1. State Key Laboratory of Multi-phase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences
    2. University of Chinese Academy of Sciences
    3. State Key Laboratory of Multi-Phase Complex Systern, Institute of Process Engineering, CAS
    4. State Key Lab. Multi-phase Complex Systems, Inst. Process Engineering, Chinese Academy of Sciences
    5. State Key Lab. Multiphase Complex System, Inst. Process Eng., Chinese Academy of Sciences
  • Received:2016-04-07 Revised:2016-04-25 Online:2016-10-20 Published:2016-10-14
  • Contact: CHEN Yun-fa yfchen@home.ipe.ac.cn

PDF

被引次数

3

摘要： Hollow silica spheres (HSS) with uniform size were prepared and composed with high temperature vulcanized silicone rubber (HTV). The microstructure of HSS was characterized, the interactions between molecular chain and the HSS was analyzed. Volume resistivity, breakdown strength, relative permittivity and dielectric loss of the HSS/HTV composites were tested. The results showed that, volume resistivity of the HSS/HTV composites was improved from 5.3×1015 ??cm to 1017 ??cm level and will decrease slightly with the increasing of HSS. The breakdown strength increased with the filler loading increasing. Composite filled with 0.05 g/g HSS achieved a breakdown strength of 21.6 kV/mm which increased by 26.3% than pure HTV. Composite containing 0.02 g/g HSS achieved a lowest relative permittivity.

关键词: SiO2中空微球, 硅橡胶, 复合材料, 电气绝缘性能

Abstract: 采用模板法制备了尺度均一的SiO2中空微球(HSS)，将其均匀分散于高温硫化硅橡胶(HTV)中制成HSS/HTV复合材料，分析了HSS的形貌及壁厚，考察了其对硅橡胶电气绝缘性能的影响及其与硅橡胶基体的相互作用. 结果表明，HSS对硅橡胶的体积电阻率、击穿强度、介电常数及介电损耗均有较明显的影响，优于同等含量的气相SiO2/HTV复合材料. 加入HSS后，复合材料的体积电阻率由纯硅橡胶的5.3×1015 ??cm提升至1017 ??cm数量级，但随HSS含量增大略有下降；击穿强度随HSS含量增加而增大，含量为0.05 g/g时达21.6 kV/mm，比纯硅橡胶提高了26.3%；介电常数随HSS含量增大先降低后升高，含量为0.02 g/g时最低；介电损耗随HSS含量增大略有增大，但仍较低.

Key words: silica hollow sphere, silicone rubber, composite, electrical insulation property

中图分类号: