Synergy improvement of dielectric properties and thermal conductivity in PVDF composites with core-shell structured Ni@SiO2

被引:0
|
作者
Li, Ting [1 ]
Zhou, Wenying [1 ]
Li, Ying [2 ]
Cao, Dan [1 ]
Wang, Yun [1 ]
Cao, Guozheng [1 ]
Liu, Xiangrong [1 ]
Cai, Huiwu [1 ]
Dang, Zhi-Min [1 ,3 ]
机构
[1] Xian Univ Sci & Technol, Sch Chem & Chem Engn, Xian 710054, Peoples R China
[2] Xian Univ Sci & Technol, Coll Mat Sci & Engn, Xian 710054, Peoples R China
[3] Tsinghua Univ, Dept Elect Engn, State Key Lab Power Syst, Beijing 100084, Peoples R China
基金
中国国家自然科学基金;
关键词
POLYMER NANOCOMPOSITES; BREAKDOWN STRENGTH; ENERGY DENSITY; PERMITTIVITY; PERFORMANCE; EFFICIENCY; CONSTANT;
D O I
10.1007/s10854-020-05149-x
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Developing a high dielectric constant (epsilon(r)) polymer dielectrics with low dielectric loss and high thermal conductivity (TC) is still continuous demands for advanced electrical power systems. Herein, nickel (Ni) particles were encapsulated by silica (SiO2) via a sol-gel process using sodium silicate as a precursor, and the obtained core-shell Ni@SiO2 powders were blended into poly(vinylidene fluoride) (PVDF) to investigate the effects of SiO2 insulating layer and its thickness on dielectric properties and TC of composites. Compared with pristine Ni, the Ni@SiO2/PVDF composites exhibit a superior epsilon(r), and remarkably suppressed loss and conductivity, attributable to the SiO2 interlayer between the core Ni particles which effectively prevents them from direct contacts and significantly reduces the leakage loss. Moreover, the Ni@SiO2/PVDF composites still possess a high TC owing to the restrained thermal interfacial resistance and enhanced interfacial compatibility between the fillers and the matrix. The developed Ni@SiO2/PVDF composites with high k and TC but low loss are potential for microelectronic industry.
引用
收藏
页码:4076 / 4089
页数:14
相关论文
共 50 条
  • [1] Synergy improvement of dielectric properties and thermal conductivity in PVDF composites with core‐shell structured Ni@SiO2
    Ting Li
    Wenying Zhou
    Ying Li
    Dan Cao
    Yun Wang
    Guozheng Cao
    Xiangrong Liu
    Huiwu Cai
    Zhi-Min Dang
    [J]. Journal of Materials Science: Materials in Electronics, 2021, 32 : 4076 - 4089
  • [2] Concurrently enhanced dielectric properties and thermal conductivity in PVDF composites with core-shell structured β-SiCw@SiO2 whiskers
    Zhou, Wenying
    Li, Xu
    Zhang, Fan
    Zhang, Caihua
    Li, Zhen
    Chen, Fuxin
    Cai, Huiwu
    Liu, Xiangrong
    Chen, Qingguo
    Dang, Zhi-Min
    [J]. COMPOSITES PART A-APPLIED SCIENCE AND MANUFACTURING, 2020, 137
  • [3] Improved dielectric properties and thermal conductivity of PVDF composites filled with core-shell structured Cu@CuO particles
    Zhou, Wenying
    Zhang, Fan
    Yuan, Mengxue
    Li, Bo
    Peng, Jiandong
    Lv, Yunqi
    Cai, Huiwu
    Liu, Xiangrong
    Chen, Qingguo
    Dang, Zhi-Min
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2019, 30 (20) : 18350 - 18361
  • [4] Dielectric properties and thermal conductivity of core-shell structured Ni@NiO/poly(vinylidene fluoride) composites
    Zhou, Wenying
    Gong, Ying
    Tu, Litao
    Xu, Li
    Zhao, Wei
    Cai, Jiangtao
    Zhang, Yating
    Zhou, Anning
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2017, 693 : 1 - 8
  • [6] Dielectric properties and thermal conductivity of epoxy composites using core/shell structured Si/SiO2/Polydopamine
    Wang, Zhengdong
    Cheng, Yonghong
    Yang, Mengmeng
    Huang, Jialiang
    Cao, Daxian
    Chen, Siyu
    Xie, Qian
    Lou, Wanxi
    Wu, Hongjing
    [J]. COMPOSITES PART B-ENGINEERING, 2018, 140 : 83 - 90
  • [7] PVDF composites filled with core-shell fillers of Si@SiO2, Si@SiO2@PS: effects of multiple shells on dielectric properties and thermal conductivity
    Li, Xu
    Zhou, Wenying
    Cao, Dan
    Li, Ying
    Li, Ting
    Chen, Fuxin
    Wu, Hongju
    Wang, Guangheng
    Liu, Xiangrong
    Cai, Huiwu
    Zhang, Hongfang
    [J]. JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2021, 32 (18) : 23429 - 23444
  • [8] Towards synchronously improving dielectric performances and thermal conductivity in Ni/PVDF by tailoring core-shell structured Ni@NiO particles
    Peng, Weiwei
    Zhou, Wenying
    Cao, Guozheng
    Yang, Yating
    Cao, Jing
    Kong, Fanrong
    Wang, Guangheng
    Feng, Aihong
    Luo, Lidong
    [J]. HIGH PERFORMANCE POLYMERS, 2022, 34 (10) : 1177 - 1192
  • [9] The effect of core-shell BaTiO3@SiO2 on the mechanical and dielectric properties of PVDF composites
    Celebi, Hande
    Duran, Semra
    Dogan, Aydin
    [J]. POLYMER-PLASTICS TECHNOLOGY AND MATERIALS, 2022, 61 (11): : 1191 - 1203
  • [10] Improved dielectric properties and thermal conductivity of PVDF composites filled with core–shell structured Cu@CuO particles
    Wenying Zhou
    Fan Zhang
    Mengxue Yuan
    Bo Li
    Jiandong Peng
    Yunqi Lv
    Huiwu Cai
    Xiangrong Liu
    Qingguo Chen
    Zhi-Min Dang
    [J]. Journal of Materials Science: Materials in Electronics, 2019, 30 : 18350 - 18361