Open structured in comparison with dense multi-walled carbon nanotube buckypapers and their composites

Epoxidized multi-walled carbon nanotube buckypapers: A scaffold for polymer nanocomposites with enhanced mechanical properties

“…This reflects also to the total porosity of the buckypapers: the HG-buckypaper (buckypaper prepared by highly grafted nanotubes) has a total porosity of 74%, the porosity of the MG is 71% and the porosity of the SG is 69%, and it is even more clear at the average pore radius: 69 nm for HG, 56 nm for MG and 48 nm for SG Similar porosity distribution profiles were reported from Whitby et al [27]. The pore size distribution is a key factor for the production of high volume fraction composites, since relatively small pore sizes can block the impregnation of the resin molecules inside the internal galleries of the buckypaper [28]. …”

“…For fibrous composite in order to achieve an efficient load transfer the length of the filler must be about 15 times higher than the so-called critical length, l c [28,35,36]. In the present work, the nanocomposites produced by very short nanotubes (1.5 lm) much lower than any perceived critical length and therefore it is assumed that the level of interfacial strength [28] will undoubtedly determine the fraction of axial load that will be transferred to the CNTs. Since clear reinforcement is observed for low to moderate volume fractions, it is evident that the epoxidation treatment is a suitable treatment for the attainment of a strong interface.…”

One-step synthesis of ZnO decorated CNT buckypaper composites and their optical and electrical properties

“…Constituting a functional component in various applications buckypapers can be used as permeable membranes, capacitors, electrodes for fuel cells, reinforcement in composite materials, among others [30][31][32][33][34]. This approach could be used as an effective method to create composites of CNTs with metal oxide nanoparticles with suitable properties to give rise new materials with tailoring properties [29,35].…”

Fabrication of robust multiwalled carbon nanotube buckypapers through crosslinking reaction of epoxy chains with its curing agent

“…Vacuum filtration is one of the most efficient methods for production of CNT‐BPs and exhibits several important advantages . In this method, CNTs are first dispersed in a solvent, and then the CNT solution is filtered through a membrane by means of a vacuum filtration pump .…”