电子元件与材料Issue(6)：4-7,4.DOI:10.14106/j.cnki.1001-2028.2015.06.002
TiO2粒径对聚四氟乙烯/TiO2复合材料性能的影响
Effects of TiO2 particle size on the properties of PTFE/TiO2 composites
杨俊 1袁颖 1杨熙 1于丁丁 1尹玉婷1
作者信息
- 1. 电子科技大学 微电子与固体电子学院，电子薄膜与集成器件国家重点实验室，四川 成都 610054
- 折叠
摘要
Abstract
PTFE composite filled with TiO2 was prepared by hot-pressing method. The effects of TiO2 particle size on the microstructure and thermal conductivity and dielectric properties for PTFE/TiO2 composite materials were investigated. The results reveal that the densities of composite materials increase with an increase of TiO2 particle size, while the dielectric loss and water absorption decrease with the increase of TiO2 particle size. The relative dielectric constant and the thermal conductivity decrease first, to reach the minimum values atD50=6.5μm, then increase with the increase of TiO2 particle size. When the particle size (D50) of TiO2is 11 μm,the PTFE/TiO2 composite material exhibits a higher relative permittivity (εr=6.8), lower dielectric loss (tanδ=0.001 2) and higher thermal conductivity (0.533 W/(m·℃)).关键词
复合材料/聚四氟乙烯/TiO2/介电性能/热导率/基板Key words
composite material/polyfluortetraethylene (PTFE)/TiO2/dielectric property/thermal conductivity/substrates分类
信息技术与安全科学引用本文复制引用
杨俊,袁颖,杨熙,于丁丁,尹玉婷..TiO2粒径对聚四氟乙烯/TiO2复合材料性能的影响[J].电子元件与材料,2015,(6):4-7,4.
