Effect of dispersion of MWCNTs on the static and dynamic mechanical behavior of epoxy matrix nanocomposites

Modifications of mechanical, thermal, and electrical characteristics of epoxy through dispersion of multi-walled carbon nanotubes in supercritical carbon dioxide

“…With increasing concentration of MWCNTs, modification of the roughness of the fractured surface was observed mainly in the areas of the CECs where the crack propagation initiated, which is common in brittle epoxy resin fractures [31,35,36]. The spectral, microstructure, and electrical conductivity data reveal the capability of SCC to provide well dispersed MWCNT/epoxy formulations up to a filler concentration of 0.2 at applied supercritical processing conditions within 1h without sonication [18,29,31].…”

“…Cured epoxy shows tensile strength and Young modulus to a filler concentration of 0.2 at applied supercritical processing conditions within 1h without procedures of sonication or other related physical methods [18,28,30]. The assignments of group frequencies at respective wave numbers (cm -1 ) based on FT-IR spectra reveal the formation of CECs (Fig.…”

“…TE 97/7050 fitted with a Muyford super lathe, dead weight tester, transducer with calibration of 0.892 mv/v, microscope, and chart recorder was used in the present work. It consists of a modified lathe carrying a disc-shaped specimen on a mandrel with two pins pressed into creased surface contact area between the constituent phases [18][19][20][21][22][23][24]. In recent decades, efforts have been directed towards the development of physical-mechanical or chemical processes to enhance the dispersion of CNTs in an epoxy matrix [25][26][27][28][29].…”

Carbon and titanium dioxide nanotube polymer composite manufacturing – characterization and interphase modeling

“…The investigation of the interphase viscoelastic behavior of CNT-reinforced nanocomposites, and their modeling by means of the VHIM is described in Section 6.2 of this chapter. An investigation on specimens of MWCNTeepoxy nanocomposites prepared by two different dispersion methods, respectively the ultrasonication and highspeed shear mixing methods, was performed (Papanicolaou, Papaefthymiou, Koutsomitopoulou, Portan, & Zaoutsos, 2012). The dispersion degree between MWCNT and polymer resin was optically analyzed using scanning electron microscopy technology.…”

The Separation Power of Nanotubes in Membranes: A Review

“…A comprehensive review for aqueous systems is given by Wang [118], who also outlines he thermodynamic driving forces and the role of metastability in the structure of surfactant dispersed SWCNT suspensions. Sonication is another method that can be applied (or rather, should be applied) for stabilization of carbon nanotube suspensions [119,120]. In general, this is found in publications as a standard experimental method and is thought necessary in most applications.…”