Silica nanoparticles treated by cold atmospheric-pressure plasmas improve the dielectric performance of organic–inorganic nanocomposites

Yan, Wei, Han, Zhao Jun, Phung, B. Toan, & Ostrikov, Kostya (2012) Silica nanoparticles treated by cold atmospheric-pressure plasmas improve the dielectric performance of organic–inorganic nanocomposites. ACS Applied Materials & Interfaces, 4(5), pp. 2637-2642.

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Abstract

We report on the application of cold atmospheric-pressure plasmas to modify silica nanoparticles to enhance their compatibility with polymer matrices. Thermally nonequilibrium atmospheric-pressure plasma is generated by a high-voltage radio frequency power source operated in the capacitively coupled mode with helium as the working gas. Compared to the pure polymer and the polymer nanocomposites with untreated SiO2, the plasma-treated SiO2–polymer nanocomposites show higher dielectric breakdown strength and extended endurance under a constant electrical stress. These improvements are attributed to the stronger interactions between the SiO2 nanoparticles and the surrounding polymer matrix after the plasma treatment. Our method is generic and can be used in the production of high-performance organic–inorganic functional nanocomposites.

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25 citations in Scopus
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25 citations in Web of Science®

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ID Code: 73614
Item Type: Journal Article
Refereed: Yes
DOI: 10.1021/am300300f
ISSN: 1944-8252
Divisions: Current > QUT Faculties and Divisions > Science & Engineering Faculty
Deposited On: 09 Jul 2014 02:12
Last Modified: 10 Jul 2014 03:57

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