Manufacture and characterization of CF-CNT paper reinforced epoxy composites by resin infusion method

초록

Carbon nanotube materials have excellent mechanical, thermal and electrical properties, characteristics that make them interesting for potential applications in the electronics, aerospace industry [1]. In particular, Carbon nanotube paper (CNP)/polymer composites are potential candidates for lightweight multifunctional structural materials with high mechanical performance. CNP is typically fabricated by filtering aqueous suspensions of CNTs [2]. We report that carbon aqueous dispersion could be manufactured using ultra-sonication and that these show dramatic improvements in electrical conductivity with percolation threshold ~0.2% of MWNT. By significantly improving the dispersion of MWNTs, we show that only a very small amount of MWNTs are needed to achieve the conductivity levels required for different electrical applications. Chopped carbon fibers aqueous dispersion can be dispersed using ozon treatment. CF-CNT paper can be fabricated by wet-laying of mixed CF-CNT aqueous dispersion. CF-CNT papers were embedded in epoxy resin by resin infusion process to realize CNT/Epoxy composites. In this study, we report that electrical conductivity measurements of the CF-CNT papers and mechanical properties of the paper and their polymer composites. ? 2017 International Committee on Composite Materials. All rights reserved.

키워드