Effects of surface-functionalized aluminum nitride on thermal, electrical, and mechanical behaviors of polyarylene ether nitrile-based composites
journal contributionposted on 06.01.2017, 12:14 authored by Yuanming Chen, Xuemei He, Yue Wu, Xing Gao, Jinling Wang, Wei He, Vadim SilberschmidtVadim Silberschmidt, Huan Xu
Aluminum nitride (AlN) with high thermal conductivity was blended in polyarylene ether nitrile (PEN) to obtain a composite system. A ball milling process could provide AlN particles of smaller size with higher surface silylation for homogeneous particle distribution in polymeric matrix. Thermal, electrical, and mechanical behaviors of the produced composites were characterized to investigate the effects of particles on the performance of PEN-based composites with functionalized AlN. The composite exhibited thermal conductivity of 0.779 W m−1 K−1, a dielectric constant of 7.7, dielectric loss of 0.032, electrical resistivity of 1.39 GΩ.cm, and break strength of 36 N when the fraction of functionalized AlN increased to 42.3 vol%. A fitted equation based on the improved Russell's model could effectively predict a trend for thermal conductivity of the composite systems with consideration of interfacial resistance between AlN and surrounding PEN.
Contract grant sponsor: Key Project of Science and Technology Planning of the Guangdong Province China; contract grant number: 2012A090 300007; contract grant sponsor: China Scholarship Council; contract grant number: 201306070032
- Mechanical, Electrical and Manufacturing Engineering