Facile and cost-effective strategy for fabrication of polyamide 6 wrapped multi-walled carbon nanotube via anionic melt polymerization of ε-caprolactam
- Title
- Facile and cost-effective strategy for fabrication of polyamide 6 wrapped multi-walled carbon nanotube via anionic melt polymerization of ε-caprolactam
- Author
- 김성훈
- Keywords
- Multi-walled carbon nanotube; Anionic polymerization; In-situ polymerization; Polymer wrapping; Composite; Electrical conductivity
- Issue Date
- 2019-10
- Publisher
- ELSEVIER SCIENCE SA
- Citation
- CHEMICAL ENGINEERING JOURNAL, v. 373, Page. 251-258
- Abstract
- There is a growing demand for the development of a melt process-based nanocomposite manufacturing process capable of minimizing the incorporation of expensive carbon nanotubes (CNTs) by inducing a uniform dispersion of multiwalled CNTs (MWNTs). In this study, we proposed a nanocomposite manufacturing process that includes both physical particle mixing using high-speed rotation and anionic polymerization of ε-caprolactam (CL) to induce a uniform dispersion of MWNTs. MWNTs were uniformly dispersed by powder mixing and then wrapped with polyamide 6 polymers by in-situ polymerization of CL. The synergistic effect of the two sub-processes resulted in an enhanced dispersion of MWNTs and prevented aggregation of the MWNTs. The composites fabricated by the proposed process exhibited electrical conductivities of 4.49 × 10−5 S/m and 1.45 × 10 S/m at 1 wt% and 3 wt% MWNTs, respectively, indicating that by applying the proposed process it is possible to incorporate a smaller amount of MWNT to achieve electrical conductivities applicable for electrostatic discharge (ESD) (˃ 1 X 10−5 S/m) and electromagnetic interference shielding effectiveness (EMI SE) (˃ 10 S/m) applications. An ESD chip tray and EMI SE mobile phone case were fabricated using the prepared composite, and it was verified that the ESD and EMI SE performances can be realized.
- URI
- https://www.sciencedirect.com/science/article/pii/S1385894719310587?via%3Dihubhttps://repository.hanyang.ac.kr/handle/20.500.11754/154631
- ISSN
- 1385-8947; 1873-3212
- DOI
- 10.1016/j.cej.2019.05.044
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > ORGANIC AND NANO ENGINEERING(유기나노공학과) > Articles
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