Effect of surface functionalization on the dielectric properties of polypropylene aluminium nitride nanocomposites

Wang, Xinyu, Andritsch, Thomas and Chen, George (2018) Effect of surface functionalization on the dielectric properties of polypropylene aluminium nitride nanocomposites. 2nd International Conference on Dielectrics, Danubius Hotel Helia, Budapest, Hungary. 01 - 05 Jul 2018. 4 pp . (doi:10.1109/ICD.2018.8514621).

Record type: Conference or Workshop Item (Paper)

Abstract

Polymer nanocomposites can potentially provide many advantages and the interaction region between polymer and nanoparticles—the so-called interphase is usually considered to be responsible for the change of properties. In this work, nanoaluminium nitride powders with various surface states obtained by three different silane coupling agents (SCA) and an untreated powder, were blended with isotactic polypropylene. AC breakdown strength and dielectric spectroscopy were used to study the effect of different particle surfaces and polymerparticle interphases. The nano-aluminium nitride powder grafted with different organofunctional groups can provide a number of potential interactions with the matrix polymer. The results show that it can not only affect the dispersion state of nanoparticles but will provide different impacts on the dielectric properties of the bulk material. The hydrolysable groups of SCA, notably, can also influence the dielectric properties through altering the surface chemistry of nanoparticles.

Text

PID5438715 - Accepted Manuscript

Available under License University of Southampton Accepted Manuscript Licence.

Download (1MB)

Slideshow

ICD2018 Xinyu Wang Presentation - Other

Download (19MB)