NDLI: Structure and properties of multi-walled carbon nanotube porous sheets with enhanced elongation

Content Provider	Springer Nature Link
Author	Mechrez, G. Suckeveriene, R. Y. Tchoudakov, R. Kigly, A. Segal, E. Narkis, M.
Copyright Year	2012
Abstract	In this article, multi-walled carbon nanotubes (MWNTs)/dodecyl benzene sulfonic acid (DBSA) porous sheet networks (PSNs) of enhanced extensibility were developed and characterized. The MWNT/DBSA networks possess failure strains of 8–12 %, markedly higher than the literature reported values of 0.5–4 %. The networks were prepared through micro-filtration of highly dispersed MWNT in DBSA aqueous solutions. The DBSA molecule has two functions: In the dispersion stage, DBSA functions as a dispersant leading to the establishment of stable individually dispersed MWNT, and in the MWNT porous sheet, the presence of DBSA within the nanotubes’ network creates a lubrication-like effect, enhancing the networks’ extensibility. In fact, it was found that DBSA is assembled in two modes within the nanotubes’ network: a fraction which is strongly adsorbed onto the CNT surface, and another fraction entrapped within the network as a DBSA/water solution. It should be noted that the composition of these systems is stable under ambient room temperature conditions. Comparison of MWNT networks prepared from the MWNT/DBSA dispersions and from the same but coagulated before filtration has shown superiority of the non-coagulated systems in relation to structure and mechanical properties. The prepared MWNT/DBSA PSNs of enhanced extensibility were developed without any modification by polymers, and they are characterized by high electrical conductivity and nano-porosity.
Starting Page	6131
Ending Page	6140
Page Count	10
File Format	PDF
ISSN	00222461
Journal	Journal of Materials Science
Volume Number	47
Issue Number	16
e-ISSN	15734803
Language	English
Publisher	Springer US
Publisher Date	2012-05-10
Publisher Place	Boston
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Crystallography Characterization and Evaluation of Materials Materials Science Continuum Mechanics and Mechanics of Materials Polymer Sciences Mechanics
Content Type	Text
Resource Type	Article
Subject	Ceramics and Composites Mechanics of Materials Mechanical Engineering Polymers and Plastics

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