Highly conductive and mechanically robust multiwalled carbon nanotube-polyamide nanocomposites via noncovalent functionalization
Source abstract
Abstract
Electrically conductive multiwalled carbon nanotube (MWNT)/polyamide 6 (PA 6) nanocomposite films with high mechanical strength were fabricated by blending modified MWNTs with PA 6 polymer. The surface functionalization of MWNTs, which were modified using ureidopyrimidinone (upy) and pyrene-upy through covalent and noncovalent methods, respectively, significantly contributed to the uniform dispersion of MWNTs in PA 6, improving the electrical and mechanical properties of its nanocomposite. Particularly, noncovalent functionalization using pyrene-upy-MWNTs was more effective in achieving high electrical conductivities than covalent functionalization using upy-MWNTs. Pyrene-upy-MWNT/PA 6 nanocomposites with the highest electrical conductivity of 4.18 Scm−1, tensile strength of 39 MPa, and Young’s modulus of 911 MPa exhibited excellent electromagnetic interference (EMI) shielding effectiveness of 57.8 dB mm−1. These results suggest that the simple and effective preparation of MWNT/PA 6 nanocomposites using our noncovalent modification with pyrene-upy can provide benefits for application area required electrical conductivity and mechanical strength such as EMI shielding.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Electromagnetic wave absorption materials · Conducting polymers and applications · Synthesis and Properties of Aromatic Compounds
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (44)
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