Influence of the amount of silane coupling agent on the dielectric properties of AlN/polypropylene nanocomposites

Wang, Xinyu, Andritsch, Thomas and Chen, George (2020) Influence of the amount of silane coupling agent on the dielectric properties of AlN/polypropylene nanocomposites. In 2019 IEEE Conference on Electrical Insulation and Dielectric Phenomena, CEIDP 2019 - Proceedings. IEEE. pp. 356-359 . (doi:10.1109/CEIDP47102.2019.9009642).

Record type: Conference or Workshop Item (Paper)

Abstract

In this work, four loading amounts of trimethoxy (octyl) silane (C8-M) were used in preparing C8-M treated AlN/polypropylene nanocomposites. Although the thermal gravimetric analysis shows a significant difference in the amount of C8-M grafted on the AlN surface, and a saturation point can be reached as the amount of C8-M added increases, the AC breakdown strengths of composites present virtually identical results. Similar behaviours can be observed in the real and imaginary permittivity from 0.01 Hz to 100 kHz, although the upturns of the imaginary permittivity at low frequency are observed increasing with the amount of C8-M used. Seemingly contradictory to a previously reported work on epoxy with nanosilica, AlN/polypropylene is largely unaffected by the amount of the silane coupling agent applied during the surface treatment.

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CEIDP 2019 paper Xinyu final - Accepted Manuscript

Available under License University of Southampton Accepted Manuscript Licence.

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