Zhou Yongcun, Wang Hong, Xiang Feng, Zhang Hu, Yu Ke, Chen Liang
Appl Phys Lett. 2011 May 2;98(18):182906. doi: 10.1063/1.3580588. Epub 2011 May 6.
A polymer composite was prepared by embedding fillers made of self-passivated aluminum particles in two kind of sizes, micrometer size and nanometer size with different volume proportions into polyvinylidene fluoride matrix. The thermal conductivity and dielectric properties of the composite were studied. The results showed that the thermal conductivity of composites was significantly increased to 3.258 W∕mK when the volume proportion of micrometer size Al particles to nanometer size Al particles is at 20:1, also the relative permittivity was about 75.8 at 1 MHz. The effective simulation model values were in good accordance with experimental results.
通过将两种不同尺寸（微米级和纳米级）的自钝化铝颗粒填料以不同体积比例嵌入聚偏氟乙烯基体中，制备了一种聚合物复合材料。研究了该复合材料的热导率和介电性能。结果表明，当微米级铝颗粒与纳米级铝颗粒的体积比为20:1时，复合材料的热导率显著提高至3.258W∕mK，在1MHz时相对介电常数约为75.8。有效模拟模型值与实验结果吻合良好。
