Self-assembled cellulose nanofiber–carbon nanotube nanocomposite films with anisotropic conductivity

Abstract

In this study, a nanocellulose-based material showing anisotopic conductivity is introduced. The material has up to 1000 times higher conductivity along dry-line boundary direction than along radial direction. In addition...

Assembly of Clay Nanotubes on Cotton Fibers Mediated by Biopolymer for Robust and High‐Performance Hemostatic Dressing

“…Previous studies reported that cellulose nanofibers could effectively tailor the assembled structure of carbon nanotubes, and anisotropic films can be formed from evaporation boundaries. [ 23 ] Algal polysaccharides could also cause liquid crystal phase during the evaporation of graphene dispersions, implying that the arrangement of the nanoparticles changed from isotropic to anisotropic. [ 24 ] Montmorillonite nanosheets (containing Al–OH) also can achieve constrained assembly by bridging hydrogen and ionic bonds with alginate and Ca 2+ ions.…”

Nanocellulose-based composite phase change materials for thermal energy storage: status and challenges

“…46 In a recent report, Skogberg et al obtained self-assembled CNF/CNT nanocomposite films with anisotropic conductivity through the customized orientation of the high energy sonicated-cationic CNFs (hes-c-CNFs). 49 Fig. 4(b) displays the hypothesized structure of nanocellulose/CNT composite films and their simulated electrical properties, which provides a new solution to prepare nanocellulose-based films with substantial anisotropic conductivity.…”

Improved out-of-plane thermal conductivity of boron nitride nanosheet-filled polyamide 6/polyethylene terephthalate composites by a rapid solidification method

“…[5][6][7] To overcome the problem of low thermal conductivity by a matrix, the most common methods tend to add high thermal conductive fillers. Currently, the high thermal conductive fillers that have been studied mainly include carbon fillers (such as graphene, [8][9][10] carbon fiber, 11 and carbon nanotubes 12 ), and ceramic fillers (such as alumina, 13 aluminum nitrite, 14,15 boron nitrite, [16][17][18][19] and silicon carbide [20][21][22] ). Polymer-based thermal conductive composites are commonly prepared using only the hot pressing method, 23,24 in which the two-dimensional (2D) thermal conductive fillers orientate parallel to the horizontal direction of the composite film and then cause poor thermal conductivity in the vertical direction.…”