CC BY-NC-ND 4.0 UnportedBose, SuryasarathiBhattacharyya, Arup R.Kulkarni, Ajit R.Pötschke, Petra2025-05-092025-05-092009https://oa.tib.eu/renate/handle/123456789/18869https://doi.org/10.34657/17886Multiwall carbon nanotubes (MWNT) were incorporated in melt-mixed co-continuous blends of polyamide 6 (PA6) and acrylonitrile-butadiene-styrene (ABS) using a conical twin-screw microcompounder. The state of dispersion of MWNT in the blends was assessed through AC electrical conductivity measurements and melt-rheological investigations. The electrical and rheological percolation threshold in PA6/ABS blends was ∼3-4 and ∼1-2 wt% MWNT, respectively. A unique reactive modifier (sodium salt of 6-amino hexanoic acid, Na-AHA) was employed to facilitate 'network-like' structure of MWNT and to confine them in a specific phase. This was achieved by establishing specific interactions with the delocalized 'π-electron' clouds of MWNT and melt-interfacial reaction during melt-mixing. The electrical percolation threshold was significantly reduced in the blends (∼0.25 wt%) in the presence of Na-AHA modified MWNT and even coincided with the rheological percolation threshold. Significant refinement in the co-continuous structure was also observed in the presence of Na-AHA modified MWNT.enghttps://creativecommons.org/licenses/by-nc-nd/4.0/660670A. Carbon nanotubesA. NanocompositesB. Electrical propertiesD. RheologyE. Injection mouldingArticle