Water-dispersible CNTs to fabricate advanced hydrogel, metal and ceramic-matrix composite materials

Mehdi Estili

ICYS-Sengen Researcher

Abstract

Carbon nanotubes (CNTs) with their remarkable axial strength and stiffness, thermal and electrical conductivities, chemical/thermal stability as well as outstanding flexibility, near-perfect, one-dimensional crystalline structure and high aspect ratio have been considered, in theory, as a great additive to improve mechanical and transport properties of polymer, metal and ceramic-based materials. However in practice, separation and uniform dispersion of CNTs within the matrix materials and formation of intimate CNT/matrix interfaces have been the major challenges to realize the expected improvements. In this talk, I will briefly review the processing challenges involved and the usage of water-dispersible, acid-treated multi-walled CNTs to fabricate advanced hydrogel, metal and ceramic-matrix composite materials with improved mechanical and transport properties. In particular, the reinforcing mechanisms in the ceramic matrix will be discussed in more detail. I am looking forward to your constructive comments.

References:

Biosensors and Bioelectronics 59, 166 (2014); Scientific Reports 4, 4271 (2014); 

Advanced Materials (2013), 25, 4028; Composites Part A (2014), Accepted;

Nanotechnology (2013), 24, 155702; Journal of the American Ceramics Society (2013) 96, 1904; Advanced Materials (2012), 24, 4322; Materials Transactions (2011) 52 1960; Advanced Materials (2010), 22, 607; Journal of Materials Chemistry (2011), 21, 4272; CARBON (2009) 47, 570; ACTA Materialia (2008), 56, 4069; Scripta Materialia (2008), 58, 906; Scripta Materialia (2008), 59, 703; Journal of Nuclear Materials (2010), 398, 244.

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