Synergistic Enhancement of Thermal Conductivity and Dielectric Properties in Al2O3/BaTiO3/PP Composites
文献类型：期刊论文
| 作者 | Wang, Jun; Yao, Junlong; Hu, Li; Zhou, Min; You, Feng; Jiang, Xueliang; Gao, Lin; Wang, Qing; Sun, Zhengguang |
| 刊名 | MATERIALS
 |
| 出版日期 | 2018-09-01 |
| 卷号 | 11期号:9页码:- |
| 关键词 | thermal conductivity dielectric properties synergistic effect polymer composites ceramic |
| ISSN号 | 1996-1944 |
| 文献子类 | Article |
| 英文摘要 | Multifunctional polymer composites with both high dielectric constants and high thermal conductivity are urgently needed by high-temperature electronic devices and modern microelectromechanical systems. However, high heat-conduction capability or dielectric properties of polymer composites all depend on high-content loading of different functional thermal-conductive or high-dielectric ceramic fillers (every filler volume fraction 50%, i.e., f(filler) 50%), and an overload of various fillers (f(thermal-conductive) (filler) + f(high-dielectric) (filler) >= 50%) will decrease the processability and mechanical properties of the composite. Herein, series of alumina/barium titanate/polypropylene (Al2O3/BT/PP) composites with high dielectric- and high thermal-conductivity properties are prepared with no more than 50% volume fraction of total ceramic fillers loading, i.e., f(fillers) <= 50%. Results showed the thermal conductivity of the Al2O3/BT/PP composite is up to 0.90 W/m center dot K with only 10% thermal-conductive Al2O3 filler, which is 4.5 times higher than the corresponding Al2O3/PP composites. Moreover, higher dielectric strength (E-b) is also found at the same loading, which is 1.6 times higher than PP, and the Al2O3/BT/PP composite also exhibited high dielectric constant (epsilon(r) = 18 at 1000 Hz) and low dielectric loss (tan 0.030). These excellent performances originate from the synergistic mechanism between BaTiO3 macroparticles and Al2O3 nanoparticles. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/41188]  |
| 专题 | 生态环境研究中心_环境水质学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Wang, Jun,Yao, Junlong,Hu, Li,et al. Synergistic Enhancement of Thermal Conductivity and Dielectric Properties in Al2O3/BaTiO3/PP Composites[J]. MATERIALS,2018,11(9):-. |
| APA | Wang, Jun.,Yao, Junlong.,Hu, Li.,Zhou, Min.,You, Feng.,...&Sun, Zhengguang.(2018).Synergistic Enhancement of Thermal Conductivity and Dielectric Properties in Al2O3/BaTiO3/PP Composites.MATERIALS,11(9),-. |
| MLA | Wang, Jun,et al."Synergistic Enhancement of Thermal Conductivity and Dielectric Properties in Al2O3/BaTiO3/PP Composites".MATERIALS 11.9(2018):-. |
入库方式： OAI收割
来源：生态环境研究中心
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