Reinforcement of epoxy-based composites by magnetically aligned multi walled carbon nanotube

Multi walled carbon nanotubes decorated with ferriferrous oxide nanoparticle (MWCNTs-Fe3O4) complex was used as an effective reinforcement in the polymer composites. The MWCNTs-Fe3O4 with various grafting contents of Fe3O4 nanoparticles were successfully prepared by combining in situ atom transfer r...

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Bibliographic Details
Published in:IOP conference series. Materials Science and Engineering 2015-07, Vol.87 (1), p.12088
Main Authors: Xu, Xianjuan, Lin, Song, Li, Moyu, Li, Wusheng, Jia, Xiaolong, Cai, Qing, Yang, Xiaoping
Format: Article
Language:English
Subjects:
Electrons
Fourier transforms
Grafting
Infrared spectroscopy
Iron oxides
Magnetic fields
Microscopes
Multi wall carbon nanotubes
Nanoparticles
Polymer matrix composites
Tensile strength
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Summary:Multi walled carbon nanotubes decorated with ferriferrous oxide nanoparticle (MWCNTs-Fe3O4) complex was used as an effective reinforcement in the polymer composites. The MWCNTs-Fe3O4 with various grafting contents of Fe3O4 nanoparticles were successfully prepared by combining in situ atom transfer radical polymerization (ATRP) and coprecipitation process, which was characterized with Fourier transform infrared spectroscopy (FT-IR) and transmission electron microscope (TEM). The MWCNTs-Fe3O4 complex showed the strong magnetic response behavior, which could be easily aligned in an external magnetic field. The alignment state of MWCNTs-Fe3O4 complex could be modulated by adjusting the intensity of external magnetic field, grafting content of Fe3O4 nanoparticles and viscosity of the solvent. Moreover, with the addition of MWCNTs-Fe3O4, tensile strength and modulus of epoxy composites were enhanced by 12.3 and 10.9%, respectively, which was due to the reinforcing effect of the aligned MWCNTs-Fe3O4 within magnetic field.
ISSN:1757-8981
1757-899X
1757-899X
DOI:10.1088/1757-899X/87/1/012088