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Highly conductive polymethly(methacrylate)/multi-wall carbon nanotube composites by modeling a three-dimensional percolated microstructure

Title
Highly conductive polymethly(methacrylate)/multi-wall carbon nanotube composites by modeling a three-dimensional percolated microstructure
Author
좌용호
Keywords
Carbon nanotubes and nanofibers; Polymer-matrix composites (PMCs); Electrical properties; MECHANICAL-PROPERTIES; POLYMER COMPOSITES; NANOCOMPOSITES; THRESHOLD; SOLVENTS; BEHAVIOR; FILMS
Issue Date
2016-12
Publisher
Elsevier
Citation
Composites Part A: Applied Science and Manufacturing, v. 91, Page. 133-139
Abstract
Multi-wall carbon nanotubes (MWCNTs) were incorporated into a poly-methylmethacrylate (PMMA) matrix by using MWCNT coated PMMA particles. The MWCNTs were well incorporated to PMMA particles by a simple solution mixing and drying method with dimethylformamide (DMF) and Me0H as mixing mediums; no additional processing was necessary to achieve this level of dispersibility. The PMMA/ MWCNTs prepared from MWCNT-incorporated PMMA particles showed a high electrical conductivity of 1.23 S/cm at an MWCNT loading of 3 wt%. The critical exponent fitting by scaling law demonstrated that the electrical conduction is generated through 3-dimensionally in polymer matrices. The percolation threshold of the PMMA/MWCNT composite, which has a segregated structure in DMF, was noticeably lower than that of the PMMA/MWCNT resin, which had a randomly distributed structure. The lowest values of the percolation threshold were achieved at 0.0095 wt% of MWCNT loading. (C) 2016 Elsevier Ltd. All rights reserved.
URI
https://www.sciencedirect.com/science/article/pii/S1359835X16303293https://repository.hanyang.ac.kr/handle/20.500.11754/71369
ISSN
1359-835X; 1878-5840
DOI
10.1016/j.compositesa.2016.10.002
Appears in Collections:
COLLEGE OF ENGINEERING SCIENCES[E](공학대학) > MATERIALS SCIENCE AND CHEMICAL ENGINEERING(재료화학공학과) > Articles
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